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AstroNote 2021-128
Type: Object/s-Discovery/Classification
Released: 2021-04-18 19:02:27
adH0cc spectroscopic classification of SN 2021jom and SN 2021jwd
C. Vogl, S. Taubenberger, G. Csoernyei, M. G. Cudmani, A. Holas, W. Hillebrandt, S. H. Suyu (MPA Garching), B. Leibun...
Source Group: adH0cc
Keywords: Transient, Supernova, Spectroscopy, Optical
Related Objects:
2021jom [ZTF21aavdukh]
RA, DEC:14:45:25.281, +16:35:12.80
(221.355336, 16.586888)
Redshift:0.0372
Type:SN II
See object 2021jom [ZTF21aavdukh]
,
2021jwd [ZTF21aavrvuj]
RA, DEC:11:34:11.689, +31:49:25.29
(173.548703, 31.823692)
Redshift:0.064
Type:SN II
See object 2021jwd [ZTF21aavrvuj]
Related Notes:
2019-103
AstroNote 2019-1032019-10-14 18:15:04
Title: adH0cc spectroscopic classification of SN 2019rsw
Authors: B. Leibundgut, J. Spyromilio (ESO), C. Vogl, A. Flörs, S....
We have obtained optical spectra of SN 2021jom and SN 2021jwd, which show them to be young Type II supernovae approximately a week after explosion.
AstroNote 2021-127
Type: Object/s-Discovery/Classification
Released: 2021-04-18 18:50:34
ePESSTO+ spectroscopic classification of optical transients
M. Dennefeld (IAP), C. Vogl, G. Csoernyei, A. Holas, S. Taubenberger (MPA), A. Floers (GSI), R. Carini (INAF Roma), C...
Source Group: ePESSTO+
Keywords: Transient, Supernova, Optical, Spectroscopy
Related Objects:
2021iex [ZTF21aarlqgt]
RA, DEC:08:58:39.329, +12:18:51.44
(134.663871, 12.314289)
Redshift:0.067
Type:SN II
See object 2021iex [ZTF21aarlqgt]
,
2021jlr [ZTF21aatvqcl]
RA, DEC:09:17:23.780, +25:48:17.53
(139.349083, 25.804869)
Redshift:0.029
Type:SN II
See object 2021jlr [ZTF21aatvqcl]
,
2021hqe [ATLAS21jmk]
RA, DEC:09:41:30.962, +10:38:22.96
(145.379007, 10.639711)
Redshift:0.0185
Type:SN II-pec
See object 2021hqe [ATLAS21jmk]
,
2021jvi [ATLAS21mwk]
RA, DEC:10:23:54.735, -30:10:55.07
(155.978062, -30.181965)
Redshift:0.0672
Type:SN Ia
See object 2021jvi [ATLAS21mwk]
,
2021gbs [MASTER OT J203331.31-243730.1]
RA, DEC:20:33:31.328, -24:37:30.75
(308.380535, -24.625208)
Redshift:0.0248
Type:SN Ia
See object 2021gbs [MASTER OT J203331.31-243730.1]
Related Notes:
2021-92
AstroNote 2021-922021-03-20 16:22:47
Title: Kinder follow-up observations of AT 2021gca (ZTF21aapkbav)
Authors: T.-W. Chen, S. Yang (Stockholm), Y.-C. Pan, C.-C. Ngeow, ...
Source Group: Kinder
This report includes classifications of two Type Ia's, two Type II's, and one peculiar Type II. The peculiar Type II SN 2021hqe is similar to SN 1987A around three weeks after explosion.
AstroNote 2021-126
Type: Object/s-Discovery/Classification
Released: 2021-04-17 19:18:54
ePESSTO+ spectroscopic classification of optical transients
M. Dennefeld (IAP), S. Taubenberger, A. Holas, G. Csoernyei, C. Vogl (MPA), A. Floers (GSI), R. Carini (INAF Roma), ...
Source Group: ePESSTO+
Keywords: Transient, Supernova, Optical, Spectroscopy
Related Objects:
2021iyz [Gaia21bto]
RA, DEC:07:29:05.640, +00:36:22.50
(112.273500, 0.606250)
Redshift:0
Type:CV
See object 2021iyz [Gaia21bto]
,
2021ife [BraTS-SON-T2-024]
RA, DEC:12:22:05.280, -19:37:15.90
(185.522000, -19.621083)
Redshift:0
Type:CV
See object 2021ife [BraTS-SON-T2-024]
,
2021jvs [ZTF21aavqphe]
RA, DEC:14:57:44.807, +06:37:27.67
(224.436697, 6.624352)
Redshift:0.021
Type:SN Ia
See object 2021jvs [ZTF21aavqphe]
,
2021jwl [ZTF21aavhlry]
RA, DEC:15:35:34.261, +05:23:32.22
(233.892752, 5.392282)
Redshift:0.038
Type:SN Ia
See object 2021jwl [ZTF21aavhlry]
,
2021iue [ATLAS21lpv]
RA, DEC:15:11:38.853, +15:20:51.22
(227.911888, 15.347560)
Redshift:0.09
Type:SN Ia
See object 2021iue [ATLAS21lpv]
,
2021jtz [ATLAS21mtv]
RA, DEC:10:34:39.648, -38:47:39.24
(158.665200, -38.794233)
Redshift:0.1
Type:SN Ia
See object 2021jtz [ATLAS21mtv]
,
2021gba [PS21bxj]
RA, DEC:14:37:03.884, -08:04:35.19
(219.266183, -8.076440)
Redshift:0.1
Type:SN Ia
See object 2021gba [PS21bxj]
,
2021juw [Gaia21bwh]
RA, DEC:19:47:05.210, -20:12:11.52
(296.771708, -20.203200)
Redshift:0.039
Type:SN Ia
See object 2021juw [Gaia21bwh]
,
2021jbi [ATLAS21mbz]
RA, DEC:13:18:39.030, -41:15:12.07
(199.662624, -41.253352)
Redshift:0.14
Type:SN IIn
See object 2021jbi [ATLAS21mbz]
This report includes classifications of 6 SNe Ia, 1 SN IIn, 1 CV, and 1 He nova.
AstroNote 2021-125
Type: Object/s-Discovery/Classification
Released: 2021-04-17 17:12:52
adH0cc spectroscopic classification of SN 2021jpk
S. Taubenberger, G. Csoernyei, C. Vogl, M. G. Cudmani, A. Holas, W. Hillebrandt, S. H. Suyu (MPA Garching), B. Leibu...
Source Group: adH0cc
Keywords: Transient, Supernova, Spectroscopy, Optical
Related Objects:
2021jpk [ZTF21aauvmck]
RA, DEC:14:39:00.025, +12:40:10.02
(219.750103, 12.669450)
Redshift:0.038
Type:SN Ibn
See object 2021jpk [ZTF21aauvmck]
Related Notes:
2019-103
AstroNote 2019-1032019-10-14 18:15:04
Title: adH0cc spectroscopic classification of SN 2019rsw
Authors: B. Leibundgut, J. Spyromilio (ESO), C. Vogl, A. Flörs, S....
We have obtained an optical spectrum of SN 2021jpk, which shows it to be a Type Ibn supernova a few days before or at maximum.
AstroNote 2021-124
Type: Object/s-Discovery/Classification
Released: 2021-04-17 16:26:01
Pan-STARRS Search for Kilonovae: discovery of an intrinsically faint transient in WISEA J142047.66-194744.9 (162 Mpc)
T.-W. Chen (Stockholm), S. Srivastav, S. J. Smartt, K. W. Smith (QUB), K. C. Chambers, M. Huber (IfA, Hawaii), O. R. ...
Source Group: Pan-STARRS1
Keywords: Supernova, Transient
Related Objects:
2021jvp [PS21dhv]
RA, DEC:14:20:46.941, -19:47:10.05
(215.195586, -19.786124)
Redshift:
Type:
See object 2021jvp [PS21dhv]
Related Notes:
2019-48
AstroNote 2019-482019-07-20 17:31:04
Title: Pan-STARRS Search for Kilonovae : discovery of an intrinsically faint transient in UGC 12798 (68 Mpc)
Authors: S. J. Smartt, (Queen's University Belfast), K. C. Ch...
Source Group: Pan-STARRS1
We are carrying out the "Pan-STARRS Search for Kilonovae" which is a focused search for intrinsically faint transients, or rapidly evolving transients in galaxies which are closer than 200 Mpc in t...
AstroNote 2021-123
Type: Object/s-Discovery/Classification
Released: 2021-04-16 18:08:27
ePESSTO+ spectroscopic classification of optical transients
M. Dennefeld (IAP), A. Holas, G. Csoernyei, S. Taubenberger, C. Vogl (MPA), A. Floers (GSI), R. Carini (INAF Roma), ...
Source Group: ePESSTO+
Keywords: Transient, Supernova, Optical, Spectroscopy
Related Objects:
2021ixi [ZTF21aauapli]
RA, DEC:17:31:15.728, +05:26:22.34
(262.815532, 5.439538)
Redshift:0.02
Type:SN Ia-91T-like
See object 2021ixi [ZTF21aauapli]
,
2021jbh [ATLAS21mbw]
RA, DEC:13:15:15.572, -35:10:15.53
(198.814883, -35.170981)
Redshift:
Type:
See object 2021jbh [ATLAS21mbw]
,
2021jbk [ATLAS21mcf]
RA, DEC:13:45:08.104, -44:29:29.22
(206.283767, -44.491450)
Redshift:0.05
Type:SN Ib
See object 2021jbk [ATLAS21mcf]
,
2021jbn [ATLAS21mdo]
RA, DEC:13:58:31.575, -31:06:45.61
(209.631561, -31.112670)
Redshift:0.08
Type:SN Ia
See object 2021jbn [ATLAS21mdo]
,
2021jmi [ATLAS21mij]
RA, DEC:15:28:41.310, +26:09:19.31
(232.172126, 26.155364)
Redshift:0.086
Type:SN Ia
See object 2021jmi [ATLAS21mij]
,
2021iso [ZTF21aatpsky]
RA, DEC:11:57:21.464, -20:13:58.62
(179.339432, -20.232949)
Redshift:0.031
Type:SN II
See object 2021iso [ZTF21aatpsky]
Related Notes:
2021-116
AstroNote 2021-1162021-04-11 10:06:56
Title: ePESSTO+ spectroscopic classification of optical transients
Authors: P. Pessi (ESO), A. Holas, C. Vogl, S. Taubenberger, G. Cs...
Source Group: ePESSTO+
This report includes classifications of three SNe Ia, one SN Ib, and a reclassification of the former blue, featureless transient SN 2021iso as a SN II.
AstroNote 2021-121
Type: Object/s-Discovery/Classification
Released: 2021-04-14 17:08:02
adH0cc spectroscopic classification of SN 2021inc and SN 2021jmg
G. Csoernyei, C. Vogl, S. Taubenberger, M. G. Cudmani, A. Holas, W. Hillebrandt, S. H. Suyu (MPA Garching), B. Leibu...
Source Group: adH0cc
Keywords: Transient, Supernova, Spectroscopy, Optical
Related Objects:
2021inc [ZTF21aatabgn]
RA, DEC:13:48:21.211, +28:16:07.07
(207.088378, 28.268631)
Redshift:0.0777
Type:SN II
See object 2021inc [ZTF21aatabgn]
,
2021jmg [ATLAS21mhi]
RA, DEC:13:16:51.913, +14:24:54.58
(199.216304, 14.415162)
Redshift:0.0589
Type:SN Ic
See object 2021jmg [ATLAS21mhi]
Related Notes:
2019-103
AstroNote 2019-1032019-10-14 18:15:04
Title: adH0cc spectroscopic classification of SN 2019rsw
Authors: B. Leibundgut, J. Spyromilio (ESO), C. Vogl, A. Flörs, S....
We have obtained optical spectra of SN 2021inc and SN 2021jmg, which show them to be a young Type II supernova and a Type Ic supernova close to maximum, respectively.
AstroNote 2021-120
Type: Object/s-Discovery/Classification
Released: 2021-04-13 23:41:31
ATLAS21lte (AT2021iwv): discovery of a candidate supernova in MCG +15-01-008 (67 Mpc)
S. Srivastav, K. W. Smith, O. McBrien, S. J. Smartt, J. Gillanders, M. Fulton, D. R. Young, L. Shingles, M. McCollum,...
Source Group: ATLAS
Keywords: Supernova
Related Objects:
2021iwv [ATLAS21lte]
RA, DEC:10:03:29.818, +89:01:44.85
(150.874244, 89.029126)
Redshift:
Type:
See object 2021iwv [ATLAS21lte]
Here we report the ATLAS discovery of the transient ATLAS21lte (AT2021iwv) in galaxy MCG +15-01-008 at magnitude c = 18.29 +/- 0.17. At a distance of 67 Mpc, the transient was discovered on MJD = 5...
AstroNote 2021-119
Type: Object/s-Discovery/Classification
Released: 2021-04-13 17:26:51
ZTF superluminous supernova candidates
Lin Yan (Caltech), Dan Perley (LJMU), Ragnhild Lunnan, Ting-Wan Chen, Steve Schulze, Tuomas Kangas, Jesper Sollerman ...
Source Group: ZTF
Keywords: Supernova, Transient
Related Objects:
2021jmn [ZTF21aamwsud]
RA, DEC:17:10:25.090, +64:09:41.60
(257.604542, 64.161556)
Redshift:
Type:
See object 2021jmn [ZTF21aamwsud]
,
2021hpx [ZTF21aappdnv]
RA, DEC:09:31:06.260, -19:31:04.76
(142.776083, -19.517989)
Redshift:0.213
Type:SLSN-I
See object 2021hpx [ZTF21aappdnv]
,
2021jmj [ZTF21aakmsod]
RA, DEC:08:25:25.390, +23:18:41.70
(126.355792, 23.311583)
Redshift:
Type:
See object 2021jmj [ZTF21aakmsod]
,
2021jmk [ZTF21aaphpys]
RA, DEC:12:04:34.010, -23:52:41.70
(181.141708, -23.878250)
Redshift:
Type:
See object 2021jmk [ZTF21aaphpys]
,
2021jmm [ZTF21aanuxvd]
RA, DEC:09:56:55.850, +45:57:03.50
(149.232708, 45.950972)
Redshift:
Type:
See object 2021jmm [ZTF21aanuxvd]
,
2021hpc [ZTF21aaqawpd]
RA, DEC:13:33:01.065, +43:10:33.91
(203.254438, 43.176087)
Redshift:
Type:
See object 2021hpc [ZTF21aaqawpd]
,
2021jml [ZTF21aarkkof]
RA, DEC:06:12:15.340, +58:35:19.50
(93.063917, 58.588750)
Redshift:
Type:
See object 2021jml [ZTF21aarkkof]
We report 7 ZTF superluminous supernova candidates selected by our software filter and subsequent vetting. In this sample, a typical rise time is about 50 days and a typical peak r-band magnitude i...
AstroNote 2021-118
Type: Object/s-Discovery/Classification
Released: 2021-04-12 19:16:54
ePESSTO+ spectroscopic classification of optical transients
P. Pessi (ESO), G. Csoernyei, A. Holas, S. Taubenberger, C. Vogl (MPA Garching), A. Floers (GSI), G. Pignata (UNAB), ...
Source Group: ePESSTO+
Keywords: Transient, Supernova, Optical, Spectroscopy
Related Objects:
2021jad [ATLAS21lyp]
RA, DEC:05:33:22.177, -21:57:06.55
(83.342405, -21.951818)
Redshift:0.0055
Type:SN Ia
See object 2021jad [ATLAS21lyp]
,
2021jae [ATLAS21lzi]
RA, DEC:08:14:49.220, -22:15:00.64
(123.705082, -22.250179)
Redshift:0
Type:CV
See object 2021jae [ATLAS21lzi]
,
2021fpn [ATLAS21iaq]
RA, DEC:10:13:47.647, -00:54:55.02
(153.448530, -0.915283)
Redshift:0.0424
Type:SN IIn
See object 2021fpn [ATLAS21iaq]
,
2021htf [ZTF21aarbhhp]
RA, DEC:10:13:46.559, -00:54:30.94
(153.443995, -0.908593)
Redshift:0.0424
Type:SN IIP
See object 2021htf [ZTF21aarbhhp]
,
2021igl [ATLAS21kdf]
RA, DEC:12:28:45.736, +27:05:51.64
(187.190565, 27.097679)
Redshift:0.115
Type:SN Ia
See object 2021igl [ATLAS21kdf]
,
2021inj [ZTF21aaswtok]
RA, DEC:16:05:38.999, +03:04:18.99
(241.412494, 3.071942)
Redshift:0.041
Type:SN Ia
See object 2021inj [ZTF21aaswtok]
,
2021gdm [ZTF21aaptmrn]
RA, DEC:15:49:33.053, +04:40:15.54
(237.387721, 4.670983)
Redshift:0.112
Type:SN Ia
See object 2021gdm [ZTF21aaptmrn]
,
2021jby [DLT21l]
RA, DEC:00:00:00.000, +00:00:00.00
(0.000000, 0.000000)
Redshift:
Type:
2021jby [DLT21l]
,
2021hel [ZTF21aaquyjp]
RA, DEC:21:05:10.730, +12:49:24.74
(316.294708, 12.823539)
Redshift:
Type:
See object 2021hel [ZTF21aaquyjp]
This report includes classifications of 4 SNe Ia, 1 SN IIP, 1 SN IIn, and 2 CVs. The SN IIP and the SN IIn are located in the same host galaxy and exploded within a few weeks of each other.
AstroNote 2021-117
Type: Object/s-Discovery/Classification
Released: 2021-04-11 19:33:03
ATLAS21lyp (AT2021jad): discovery of a candidate SN in NGC 1964 (20 Mpc)
K. W. Smith, S. Srivastav, O. McBrien, S. J. Smartt, J. Gillanders, M. Fulton, D. R. Young, L. Shingles, M. McCollum,...
Source Group: ATLAS
Keywords: Supernova
Related Objects:
2021jad [ATLAS21lyp]
RA, DEC:05:33:22.177, -21:57:06.55
(83.342405, -21.951818)
Redshift:0.0055
Type:SN Ia
See object 2021jad [ATLAS21lyp]
Here we report the ATLAS discovery of the transient ATLAS21lyp (AT2021jad) in galaxy NGC 1964 at magnitude m_c = 15.42 +/- 0.01. At a distance of 20 Mpc, the transient was discovered on MJD = 5931...
AstroNote 2021-116
Type: Object/s-Discovery/Classification
Released: 2021-04-11 18:30:21
ePESSTO+ spectroscopic classification of optical transients
P. Pessi (ESO), A. Holas, C. Vogl, S. Taubenberger, G. Csoernyei (MPA Garching), A. Floers (GSI), G. Pignata (UNAB), ...
Source Group: ePESSTO+
Keywords: Transient, Supernova, Optical, Spectroscopy
Related Objects:
2021iso [ZTF21aatpsky]
RA, DEC:11:57:21.464, -20:13:58.62
(179.339432, -20.232949)
Redshift:0.031
Type:SN II
See object 2021iso [ZTF21aatpsky]
,
2021ipf [ZTF21aasuazz]
RA, DEC:11:37:50.575, -07:13:42.15
(174.460729, -7.228375)
Redshift:0.055735
Type:SN Ia
See object 2021ipf [ZTF21aasuazz]
,
2021ify [ZTF21aassamj]
RA, DEC:17:26:53.695, +13:10:43.85
(261.723729, 13.178848)
Redshift:0.056
Type:SN Ia
See object 2021ify [ZTF21aassamj]
,
2021hiv [ZTF21aaquhqr]
RA, DEC:12:49:05.837, -12:12:27.57
(192.274319, -12.207660)
Redshift:0.023
Type:SN II
See object 2021hiv [ZTF21aaquhqr]
,
2021ill [ATLAS21krq]
RA, DEC:09:19:45.340, -30:52:40.76
(139.938917, -30.877989)
Redshift:0.056
Type:SN Ia
See object 2021ill [ATLAS21krq]
,
2021ijh [Gaia21brl]
RA, DEC:12:13:59.390, -51:48:38.81
(183.497458, -51.810781)
Redshift:0.037
Type:SN II
See object 2021ijh [Gaia21brl]
,
2021gvv [ZTF21aaqmoof]
RA, DEC:17:04:36.004, +14:04:49.47
(256.150015, 14.080410)
Redshift:0.038
Type:SN II
See object 2021gvv [ZTF21aaqmoof]
This report includes classifications of three Type Ia's, three Type II's, and a young blue featureless transient.
AstroNote 2021-115
Type: Object/s-Discovery/Classification
Released: 2021-04-10 16:43:50
ePESSTO+ spectroscopic classification of optical transients
P. Pessi (ESO), A. Mitra (Nazarbayev Uni; KBTU), A. Holas, G. Csoernyei, C. Vogl, S. Taubenberger (MPA Garching), A. ...
Source Group: ePESSTO+
Keywords: Transient, Supernova, Optical, Spectroscopy
Related Objects:
2021iff [ASASSN-21ex]
RA, DEC:08:40:57.912, -67:01:44.51
(130.241300, -67.029030)
Redshift:0.03
Type:SN Ia
See object 2021iff [ASASSN-21ex]
This report includes the classification of one Type Ia supernova.
AstroNote 2021-114
Type: Object/s-Discovery/Classification
Released: 2021-04-09 05:40:20
DESIRT early discovery of two infant candidate SNe AT2021iro and AT2021irn
Xingzhuo Chen (TAMU), Lei Hu (PMO), Jiawen Yang (TAMU), Antonella Palmese (FNAL), Lifan Wang (TAMU), Xiaofeng Wang (T...
Source Group: DESIRT
Keywords: Transient, Supernova, Optical
Related Objects:
2021irn
RA, DEC:14:28:44.827, +00:42:46.94
(217.186780, 0.713040)
Redshift:
Type:
See object 2021irn
,
2021iro
RA, DEC:14:28:52.766, +02:25:37.45
(217.219860, 2.427070)
Redshift:
Type:
See object 2021iro
Here we report the DESIRT discovery of the transient AT2021irn in galaxy 2MFGC 11748 (z= 0.05684), and AT2021iro in galaxy LEDA 1226591 (z= 0.13717). AT2021irn was discovered on 2021-04-06 05:56 UT...
AstroNote 2021-113
Type: Object/s-Discovery/Classification
Released: 2021-04-08 17:05:14
Spectroscopic Classification of AT 2021hud with Keck I + LRIS
M. R. Siebert, R. J. Foley (UCSC)
Source Group: UCSC
Keywords: Supernova, Transient, Optical, Spectroscopy
Related Objects:
2021hud [PS21cvi]
RA, DEC:16:01:53.305, +20:15:30.01
(240.472104, 20.258337)
Redshift:0.047469
Type:SN II
See object 2021hud [PS21cvi]
We report spectroscopic classification of AT2021hud as a SN II
AstroNote 2021-112
Type: Object/s-Discovery/Classification
Released: 2021-04-05 16:22:30
YSE Spectroscopic Classifications of Optical Transients
G. Dimitriadis, M. R. Siebert (UCSC), C. R. Angus, L. Izzo (DARK, U Copenhagen), L. DeMarchi , C. D. Kilpatrick (Nort...
Source Group: YSE
Keywords: Supernova, Transient, Optical, Spectroscopy
Related Objects:
2021hca [PS21cku]
RA, DEC:11:20:46.849, +14:12:16.04
(170.195205, 14.204456)
Redshift:0.13
Type:SN Ia
See object 2021hca [PS21cku]
,
2021gfv [ZTF21aaptmqr]
RA, DEC:15:43:22.055, +12:57:36.09
(235.841894, 12.960026)
Redshift:0.111
Type:SN Ia
See object 2021gfv [ZTF21aaptmqr]
,
2021hol [ZTF21aarcldd]
RA, DEC:14:37:05.879, +34:37:59.06
(219.274496, 34.633072)
Redshift:0.084
Type:SN Ia
See object 2021hol [ZTF21aarcldd]
We report spectroscopic classifications of three SNe Ia.
AstroNote 2021-111
Type: Object/s-Discovery/Classification
Released: 2021-04-05 16:03:32
ePESSTO+ spectroscopic classification of optical transients
P. Pessi (ESO), A. Mitra (Nazarbayev Uni; KBTU), M. Toy, P. Wiseman, T. Müller Bravo, C. Frohmaier (Southampton), T...
Source Group: ePESSTO+
Keywords: Transient, Supernova, Optical, Spectroscopy
Related Objects:
2021dqw [ZTF21aamwvhr]
RA, DEC:16:06:38.926, +16:14:07.21
(241.662192, 16.235336)
Redshift:0.04
Type:SN II
See object 2021dqw [ZTF21aamwvhr]
,
2021htw [ATLAS21job]
RA, DEC:05:53:29.529, -35:02:07.02
(88.373036, -35.035284)
Redshift:0.08
Type:SN Ia
See object 2021htw [ATLAS21job]
,
2021hfq [Gaia21bnr]
RA, DEC:07:57:54.900, -67:43:53.15
(119.478750, -67.731431)
Redshift:0.08
Type:SN Ia
See object 2021hfq [Gaia21bnr]
,
2021hvo [ATLAS21jom]
RA, DEC:13:22:51.335, -40:46:36.15
(200.713895, -40.776708)
Redshift:0.051
Type:SN Ia
See object 2021hvo [ATLAS21jom]
,
2021fox [ATLAS21hzm]
RA, DEC:09:57:36.360, -13:41:45.42
(149.401500, -13.695950)
Redshift:0.032
Type:SN II
See object 2021fox [ATLAS21hzm]
,
2021hpv [ATLAS21jlk]
RA, DEC:10:02:57.332, -11:44:01.54
(150.738884, -11.733760)
Redshift:0.029
Type:SN Ic
See object 2021hpv [ATLAS21jlk]
,
2021hkf [ZTF21aaqyuun]
RA, DEC:11:44:23.266, +08:10:41.52
(176.096940, 8.178199)
Redshift:0.02
Type:SN II
See object 2021hkf [ZTF21aaqyuun]
,
2021fzq [ZTF21aapjmpq]
RA, DEC:15:01:07.290, +12:18:50.36
(225.280374, 12.313990)
Redshift:0.13
Type:SN Ia-91T-like
See object 2021fzq [ZTF21aapjmpq]
,
2021hse [ZTF21aarjehy]
RA, DEC:16:05:56.888, +14:40:42.58
(241.487035, 14.678493)
Redshift:0.04
Type:SN II
See object 2021hse [ZTF21aarjehy]
,
2021hgd [Gaia21boh]
RA, DEC:13:33:48.430, -53:20:04.92
(203.451792, -53.334700)
Redshift:0
Type:CV
See object 2021hgd [Gaia21boh]
,
2021hwk [ZTF21aasbxng]
RA, DEC:14:19:02.721, -07:23:26.14
(214.761336, -7.390595)
Redshift:0.041
Type:SN Ia
See object 2021hwk [ZTF21aasbxng]
,
2021hji [ZTF21aaqztcg]
RA, DEC:16:48:41.125, +21:59:50.01
(252.171356, 21.997226)
Redshift:0.057
Type:SN Ia
See object 2021hji [ZTF21aaqztcg]
This report includes classifications of 6 Type Ia's, 1 Type Ic, 4 Type II's, and a CV. SN2021fox shows particularly strong and broad HeI5876+NaID.
AstroNote 2021-110
Type: Object/s-Discovery/Classification
Released: 2021-04-04 16:29:20
ePESSTO+ spectroscopic classification of optical transients
A. Mitra (Nazarbayev Uni; KBTU), P. Pessi (ESO), P. Wiseman, M. Toy, C. Frohmaier, T. Müller Bravo (Southampton), S. ...
Source Group: ePESSTO+
Keywords: Transient, Supernova, Optical, Spectroscopy
Related Objects:
2021gqm [ZTF21aaqgrrf]
RA, DEC:10:15:02.681, +03:47:47.46
(153.761170, 3.796516)
Redshift:0.082
Type:SN Ia
See object 2021gqm [ZTF21aaqgrrf]
,
2021fmu [ZTF21aaokvio]
RA, DEC:10:31:56.239, -15:57:19.71
(157.984331, -15.955475)
Redshift:0.14
Type:SLSN-II
See object 2021fmu [ZTF21aaokvio]
This report includes classifications of 1 Type Ia and a re-classification of a superluminous supernova (SLSN) as a Type II SLSN.
AstroNote 2021-109
Type: Object/s-Discovery/Classification
Released: 2021-04-04 14:52:50
YSE Spectroscopic Classifications of Optical Transients with the NOT
C. R. Angus (DARK, U Copenhagen), C. Rojas-Bravo, R. J. Foley (UC Santa Cruz)
Source Group: YSE
Keywords: Transient, Supernova, Optical, Spectroscopy
Related Objects:
2021gyh [ZTF21aaqprjz]
RA, DEC:13:03:51.861, -03:27:06.28
(195.966087, -3.451746)
Redshift:0.08
Type:SN Ia
See object 2021gyh [ZTF21aaqprjz]
,
2021hlp [ZTF21aardybv]
RA, DEC:10:33:40.950, -03:42:23.91
(158.420624, -3.706643)
Redshift:0.065
Type:SN Ia
See object 2021hlp [ZTF21aardybv]
,
2021fsb [PS21bsq]
RA, DEC:10:20:56.665, -00:22:25.25
(155.236104, -0.373679)
Redshift:0.0535
Type:SN IIb
See object 2021fsb [PS21bsq]
We report spectroscopic classifications of 3 optical transients, including two SNe Ia and one SN IIb.
AstroNote 2021-108
Type: Object/s-Discovery/Classification
Released: 2021-04-03 19:02:23
ePESSTO+ spectroscopic classification of optical transients
P. Pessi (ESO), A. Mitra (Nazarbayev Uni; KBTU), P. Wiseman, M. Toy, C. Frohmaier, T. Müller Bravo (Southampton), T....
Source Group: ePESSTO+
Keywords: Transient, Supernova, Optical, Spectroscopy
Related Objects:
2021elz [ZTF21aanefkx]
RA, DEC:14:00:10.848, -12:18:58.92
(210.045199, -12.316368)
Redshift:0.26
Type:SLSN-II
See object 2021elz [ZTF21aanefkx]
,
2021hku [ASASSN-21en]
RA, DEC:20:32:01.913, -53:44:58.27
(308.007970, -53.749520)
Redshift:0.011
Type:SN Ic-BL
See object 2021hku [ASASSN-21en]
This report includes classifications of 2 transients: a SN Ic-BL and a SLSN-II
AstroNote 2021-107
Type: Object/s-Discovery/Classification
Released: 2021-04-03 12:34:43
Asiago spectroscopic observation of SN 2021hpr
L. Tomasella, S. Benetti, E. Cappellaro, A. Pastorello (INAF OAPd)
Source Group: Padova-Asiago
Keywords: Supernova, Spectroscopy, Optical
Related Objects:
2021hpr
RA, DEC:10:16:38.616, +73:24:01.81
(154.160900, 73.400502)
Redshift:0.009346
Type:SN Ia
See object 2021hpr
We report the spectroscopic classification of SN 2021hpr in NGC 3147 (z=0.009346)
AstroNote 2021-106
Type: Object/s-Discovery/Classification
Released: 2021-03-30 08:37:19
SN 2021dqs is a long-rising SN II with light curve variability
S. Prentice, K. Maguire, M. Magee, M. Deckers, L. Harvey, J. Terwel (TCD)
Source Group: TCD
Keywords: Supernova
Related Objects:
2021dqs [ZTF21aalxurx]
RA, DEC:13:44:05.738, +43:04:18.05
(206.023910, 43.071680)
Redshift:0.027
Type:SN II
See object 2021dqs [ZTF21aalxurx]
We classify SN 2021dqs as a Type II SN. It's ZTF light curve indicates a rise time of >35 days with a rebrightening.
AstroNote 2021-105
Type: Object/s-Discovery/Classification
Released: 2021-03-28 18:23:57
ZTF21aaquyjp/AT2021hel: ZTF discovery of a hostless fast transient
Igor Andreoni (Caltech), Michael Coughlin (UMN), Mansi Kasliwal (Caltech), Erik Kool (OKC), Tomas Ahumada (UMD), Shre...
Source Group: ZTF
Keywords: Optical, Transient
Related Objects:
2021hel [ZTF21aaquyjp]
RA, DEC:00:00:00.000, +00:00:00.00
(0.000000, 0.000000)
Redshift:
Type:
2021hel [ZTF21aaquyjp]
We report the discovery of the fast optical transient ZTF21aaquyjp/AT2021hel with the Zwicky Transient Facility (ZTF). ZTF data at these coordinates are public and the light curve of ZTF21aaquyjp c...
AstroNote 2021-103
Type: Object/s-Discovery/Classification
Released: 2021-03-26 13:33:55
ZTF21aanxhjv/AT2021ehb: ZTF discovery of a young, UV-bright tidal disruption event
Suvi Gezari (STScI), Erica Hammerstein (UMD), Yuhan Yao (Caltech), Sjoert van Velzen (Leiden), Brad Cenko (NASA/Godda...
Source Group: ZTF
Keywords: TDE, Transient, Ultra-Violet
Related Objects:
2021ehb [ZTF21aanxhjv]
RA, DEC:03:07:47.806, +40:18:40.57
(46.949190, 40.311268)
Redshift:
Type:
See object 2021ehb [ZTF21aanxhjv]
We report the discovery and classification of ZTF21aanxhjv/AT2021ehb, a young, UV-bright tidal disruption event in a galaxy at z=0.017, still on the rise to peak.
AstroNote 2021-102
Type: Object/s-Discovery/Classification
Released: 2021-03-24 11:18:28
ZTF superluminous supernova candidates
Ragnhild Lunnan (OKC), Daniel Perley (LJMU), Lin Yan (Caltech), Ting-Wan Chen, Steve Schulze, Tuomas Kangas, Jesper S...
Source Group: ZTF
Keywords: Supernova, Transient
Related Objects:
2021elz [ZTF21aanefkx]
RA, DEC:14:00:10.848, -12:18:58.92
(210.045199, -12.316368)
Redshift:0.26
Type:SLSN-II
See object 2021elz [ZTF21aanefkx]
,
2021fpe [ZTF21aamftdg]
RA, DEC:12:49:24.360, +52:22:49.00
(192.351500, 52.380278)
Redshift:
Type:
See object 2021fpe [ZTF21aamftdg]
,
2021fmu [ZTF21aaokvio]
RA, DEC:10:31:56.239, -15:57:19.71
(157.984331, -15.955475)
Redshift:0.14
Type:SLSN-II
See object 2021fmu [ZTF21aaokvio]
,
2021dqw [ZTF21aamwvhr]
RA, DEC:16:06:38.926, +16:14:07.21
(241.662192, 16.235336)
Redshift:0.04
Type:SN II
See object 2021dqw [ZTF21aamwvhr]
,
2021bwf [ZTF21aahfjrr]
RA, DEC:16:35:02.950, +56:28:38.35
(248.762292, 56.477319)
Redshift:0.194
Type:SN IIn
See object 2021bwf [ZTF21aahfjrr]
,
2021gwf [ZTF21aalyubu]
RA, DEC:15:06:13.890, +20:04:14.34
(226.557875, 20.070650)
Redshift:
Type:
See object 2021gwf [ZTF21aalyubu]
Related Notes:
2021-80
AstroNote 2021-802021-03-02 00:28:49
Title: ZTF superluminous supernova candidates
Authors: Ting-Wan Chen, Steve Schulze (OKC), Daniel Perley (LJMU),...
Source Group: ZTF
We report six ZTF superluminous supernova candidates selected by our software filter and subsequent vetting. In this sample, a typical rise time is about 40 days and a typical peak r-band magnitude...
AstroNote 2021-101
Type: Object/s-Discovery/Classification
Released: 2021-03-23 20:49:15
adH0cc spectroscopic classification of SN 2021ggl
C. Vogl, A. Floers, S. Taubenberger, G. Csoernyei, M. G. Cudmani, A. Holas, W. Hillebrandt, S. H. Suyu (MPA Garching)...
Source Group: adH0cc
Keywords: Transient, Supernova, Spectroscopy, Optical
Related Objects:
2021ggl [PS21byg]
RA, DEC:14:34:39.162, -08:02:25.93
(218.663176, -8.040537)
Redshift:0.195
Type:SN Ia
See object 2021ggl [PS21byg]
Related Notes:
2019-103
AstroNote 2019-1032019-10-14 18:15:04
Title: adH0cc spectroscopic classification of SN 2019rsw
Authors: B. Leibundgut, J. Spyromilio (ESO), C. Vogl, A. Flörs, S....
We have obtained an optical spectrum of SN 2021ggl, which shows it to be a young Type Ia supernova.
AstroNote 2021-100
Type: Object/s-Discovery/Classification
Released: 2021-03-23 17:39:51
ePESSTO+ spectroscopic classification of optical transients
T. Kravtsov, C. Gutiérrez, S. C. Williams, T. Nagao, H. Kuncarayakti (Turku), J. Sollerman, T. Schweyer, S. Yang (Sto...
Source Group: ePESSTO+
Keywords: Transient, Supernova, Optical, Spectroscopy
Related Objects:
2021gmk [ATLAS21iqc]
RA, DEC:06:07:26.802, -45:00:14.89
(91.861674, -45.004135)
Redshift:0.041
Type:SN Ia
See object 2021gmk [ATLAS21iqc]
,
2021gvm [ZTF21aaqjmps]
RA, DEC:13:30:01.216, +13:24:40.24
(202.505068, 13.411179)
Redshift:0.0246
Type:SN II
See object 2021gvm [ZTF21aaqjmps]
,
2021glv [ZTF21aaqecpl]
RA, DEC:17:10:21.720, -03:13:51.86
(257.590501, -3.231072)
Redshift:0.029
Type:SN Ia
See object 2021glv [ZTF21aaqecpl]
This report includes classifications of 3 transients.
AstroNote 2021-99
Type: Object/s-Discovery/Classification
Released: 2021-03-22 19:52:21
adH0cc spectroscopic classification of SN 2021fwa
G. Csoernyei, A. Holas, C. Vogl, S. Taubenberger, A. Floers, M. G. Cudmani, W. Hillebrandt, S. H. Suyu (MPA Garching...
Source Group: adH0cc
Keywords: Transient, Supernova, Spectroscopy, Optical
Related Objects:
2021fwa [PS21bvk]
RA, DEC:13:00:29.833, +07:17:07.87
(195.124305, 7.285519)
Redshift:0.04157
Type:SN II
See object 2021fwa [PS21bvk]
Related Notes:
2019-103
AstroNote 2019-1032019-10-14 18:15:04
Title: adH0cc spectroscopic classification of SN 2019rsw
Authors: B. Leibundgut, J. Spyromilio (ESO), C. Vogl, A. Flörs, S....
We have obtained an optical spectrum of SN 2021fwa, which shows it to be a young Type II supernova.
AstroNote 2021-98
Type: Object/s-Discovery/Classification
Released: 2021-03-22 18:24:22
ePESSTO+ spectroscopic classification of optical transients
S. C. Williams, T. Kravtsov, C. Gutiérrez, T. Nagao, H. Kuncarayakti (Turku), J. Sollerman, T. Schweyer, S. Yang (Sto...
Source Group: ePESSTO+
Keywords: Transient, Supernova, Optical, Spectroscopy
Related Objects:
2021fzp
RA, DEC:14:43:56.100, +16:24:47.70
(220.983750, 16.413250)
Redshift:0.054
Type:SN II
See object 2021fzp
,
2021fpm
RA, DEC:20:17:06.940, -12:05:40.63
(304.278917, -12.094619)
Redshift:0.019
Type:SN Ia
See object 2021fpm
,
2021fxf
RA, DEC:18:33:54.210, -60:08:05.86
(278.475875, -60.134961)
Redshift:0.013
Type:SN Ic
See object 2021fxf
This report includes classifications of 3 transients.
AstroNote 2021-97
Type: Object/s-Discovery/Classification
Released: 2021-03-22 01:05:25
TCD identification of a possible superluminous supernova
S. Prentice, K. Maguire, M. Magee, M. Deckers, L. Harvey, J. Terwel (TCD)
Source Group: TCD
Keywords: Supernova
Related Objects:
2021flc [ASASSN-21dd]
RA, DEC:10:55:25.471, +54:46:53.58
(163.856130, 54.781550)
Redshift:0.07
Type:SN I
See object 2021flc [ASASSN-21dd]
We identify SN 2021flc as a SLSN-I candidate.
AstroNote 2021-96
Type: Object/s-Discovery/Classification
Released: 2021-03-21 20:37:33
ePESSTO+ spectroscopic classification of optical transients
C. Gutiérrez, S. C. Williams, T. Kravtsov, T. Nagao, H. Kuncarayakti (Turku), J. Sollerman, T. Schweyer, S. Yang (Sto...
Source Group: ePESSTO+
Keywords: Transient, Supernova, Optical, Spectroscopy
Related Objects:
2021fox
RA, DEC:09:57:36.360, -13:41:45.42
(149.401500, -13.695950)
Redshift:0.032
Type:SN II
See object 2021fox
,
2021foh
RA, DEC:13:20:40.892, -17:06:33.54
(200.170382, -17.109316)
Redshift:0.022
Type:SN Ia
See object 2021foh
,
2021fna
RA, DEC:10:16:22.749, -23:11:58.01
(154.094786, -23.199447)
Redshift:0.079
Type:SN Ia
See object 2021fna
,
2021gfo
RA, DEC:08:29:13.671, +26:40:09.97
(127.306963, 26.669435)
Redshift:0.0564
Type:SN I
See object 2021gfo
This report includes classifications of 5 transients.
AstroNote 2021-95
Type: Object/s-Discovery/Classification
Released: 2021-03-21 19:24:21
Spectroscopic Classifications of Optical Transients with the SOAR telescope
G. Dimitriadis, M. R. Siebert (UCSC), L. DeMarchi , C. D. Kilpatrick (Northwestern), C. R. Angus, L. Izzo (DARK, U Co...
Source Group: YSE
Keywords: Supernova, Transient, Optical, Spectroscopy
Related Objects:
2021fom [ZTF21aaprgdh]
RA, DEC:12:59:12.072, -04:12:14.44
(194.800301, -4.204012)
Redshift:0.09
Type:SN Ia
See object 2021fom [ZTF21aaprgdh]
We report spectroscopic classification of AT2021fom as a SN Ia.
AstroNote 2021-94
Type: Object/s-Discovery/Classification
Released: 2021-03-21 06:31:55
ZTF21aapkbav/AT2021gca: Gemini-N spectroscopy
Tomas Ahumada (UMD), Christoffer Fremling (Caltech), Igor Andreoni (Caltech), Leo Singer (NASA/GSFC)
Source Group: ZTF
Keywords: Supernova, Optical, Transient, Spectroscopy
Related Objects:
2021gca [ZTF21aapkbav]
RA, DEC:14:28:07.331, +33:29:49.39
(217.030547, 33.497052)
Redshift:
Type:
See object 2021gca [ZTF21aapkbav]
Related Notes:
2021-89
AstroNote 2021-892021-03-20 04:05:39
Title: ZTF21aapkbav/AT2021gca: ZTF discovery of an intrinsically faint fast transient
Authors: Igor Andreoni (Caltech), Michael Coughlin (UMN), Erik Koo...
Source Group: ZTF
,
2021-92
AstroNote 2021-922021-03-20 16:22:47
Title: Kinder follow-up observations of AT 2021gca (ZTF21aapkbav)
Authors: T.-W. Chen, S. Yang (Stockholm), Y.-C. Pan, C.-C. Ngeow, ...
Source Group: Kinder
We observed the fast optical transient ZTF21aapkbav/AT2021gca (Andreoni et al., AstroNote 2021-89; Chen et al., AstroNote 2021-92) with the Gemini North telescope equipped with the GMOS instrument ...
AstroNote 2021-93
Type: Object/s-Discovery/Classification
Released: 2021-03-20 22:52:13
Liverpool Telescope spectroscopy of AT2021gno and AT2021gmj
Daniel Perley (LJMU) on behalf of ZTF
Source Group: ZTF
Keywords: Spectroscopy, Supernova, Optical
Related Objects:
2021gmj [ZTF21aaqgmjt]
RA, DEC:00:00:00.000, +00:00:00.00
(0.000000, 0.000000)
Redshift:
Type:
2021gmj [ZTF21aaqgmjt]
,
2021gno [ZTF21aaqhhfu]
RA, DEC:00:00:00.000, +00:00:00.00
(0.000000, 0.000000)
Redshift:
Type:
2021gno [ZTF21aaqhhfu]
Related Notes:
2021-91
AstroNote 2021-912021-03-20 15:59:41
Title: ZTF early discovery and rapid follow-up of two very nearby infant SNe: ZTF21aaqhhfu / 2021gno and ZTF21aaqgmjt / 2021gmj
Authors: Erez Zimmerman (WIS), Steve Schulze, Joel Johansson (OKC)...
Source Group: ZTF
Spectroscopy from the Liverpool Telescope shows AT2021gmj to be a young Type II supernova. The spectrum of AT2021gno is blue and featureless.
AstroNote 2021-92
Type: Object/s-Discovery/Classification
Released: 2021-03-20 17:31:06
Kinder follow-up observations of AT 2021gca (ZTF21aapkbav)
T.-W. Chen, S. Yang (Stockholm), Y.-C. Pan, C.-C. Ngeow, H.-Y. Hsiao, C.-S. Lin, W.-J. Hou and J.-K. Guo (IANCU).
Source Group: Kinder
Keywords: Transient
Related Objects:
2021gca [ZTF21aapkbav]
RA, DEC:14:28:07.331, +33:29:49.39
(217.030547, 33.497052)
Redshift:
Type:
See object 2021gca [ZTF21aapkbav]
Related Notes:
2021-89
AstroNote 2021-892021-03-20 04:05:39
Title: ZTF21aapkbav/AT2021gca: ZTF discovery of an intrinsically faint fast transient
Authors: Igor Andreoni (Caltech), Michael Coughlin (UMN), Erik Koo...
Source Group: ZTF
We observed AT 2021gca (ZTF21aapkbav) with the Lulin One-meter Telescope, Taiwan. We confirmed that the object is fading 0.3 mag per day in r-band since the discovery. The current magnitude r = 20....
AstroNote 2021-91
Type: Object/s-Discovery/Classification
Released: 2021-03-20 17:06:51
ZTF early discovery and rapid follow-up of two very nearby infant SNe: ZTF21aaqhhfu / 2021gno and ZTF21aaqgmjt / 2021gmj
Erez Zimmerman (WIS), Steve Schulze, Joel Johansson (OKC), Yi Yang (UC Berkeley), Daniel Perley (LJMU), Rachel Bruch,...
Source Group: ZTF
Keywords: Supernova, Transient
Related Objects:
2021gno [ZTF21aaqhhfu]
RA, DEC:12:12:10.293, +13:14:57.03
(183.042889, 13.249176)
Redshift:0.006211
Type:SN Ib
See object 2021gno [ZTF21aaqhhfu]
,
2021gmj [ZTF21aaqgmjt]
RA, DEC:10:38:47.279, +53:30:30.42
(159.696994, 53.508451)
Redshift:0.0034
Type:SN II
See object 2021gmj [ZTF21aaqgmjt]
We report the ZTF discovery of ZTF21aaqhhfu / 2021gno and ZTF21aaqgmjt / 2021gmj - two young supernova in the nearby galaxies NGC 4165 (z=0.0062,~46 Mpc) and NGC 3310 (z=0.0033,~13.1 Mpc). AT 2021g...
AstroNote 2021-90
Type: Object/s-Discovery/Classification
Released: 2021-03-20 10:39:10
Pan-STARRS Search for Kilonovae: discovery of an intrinsically faint transient (AT2021fwa) in WISEA J130029.98+071714.2 (185 Mpc)
K. W. Smith, S. J. Smartt (QUB), K. C. Chambers, M. Huber (IfA, Hawaii), O. R. McBrien, S. Srivastav, D. R. Young, J....
Source Group: Pan-STARRS1
Keywords: Supernova, Transient
Related Objects:
2021fwa [PS21bvk]
RA, DEC:13:00:29.833, +07:17:07.87
(195.124305, 7.285519)
Redshift:0.04157
Type:SN II
See object 2021fwa [PS21bvk]
Related Notes:
2019-48
AstroNote 2019-482019-07-20 17:31:04
Title: Pan-STARRS Search for Kilonovae : discovery of an intrinsically faint transient in UGC 12798 (68 Mpc)
Authors: S. J. Smartt, (Queen's University Belfast), K. C. Ch...
Source Group: Pan-STARRS1
We are carrying out the "Pan-STARRS Search for Kilonovae" which is a focused search for intrinsically faint transients, or rapidly evolving transients in galaxies which are closer than 200 Mpc in t...
AstroNote 2021-89
Type: Object/s-Discovery/Classification
Released: 2021-03-20 04:05:39
ZTF21aapkbav/AT2021gca: ZTF discovery of an intrinsically faint fast transient
Igor Andreoni (Caltech), Michael Coughlin (UMN), Erik Kool (OKC), Tomas Ahumada (UMD), David Cook (IPAC), Mansi Kasli...
Source Group: ZTF
Keywords: Transient, Optical
Related Objects:
2021gca [ZTF21aapkbav]
RA, DEC:14:28:07.331, +33:29:49.39
(217.030547, 33.497052)
Redshift:
Type:
See object 2021gca [ZTF21aapkbav]
We report the discovery of the fast, low-luminosity optical transient ZTF21aapkbav/AT2021gca with the Zwicky Transient Facility (ZTF). ZTF21aapkbav was first detected on 2021-03-17 09:23 UT at r=1...
AstroNote 2021-88
Type: Object/s-Discovery/Classification
Released: 2021-03-19 22:51:15
ATLAS21iid (AT2021gdz): discovery of a candidate SN in KUG 1150+203 (93 Mpc)
K. W. Smith, S. Srivastav, O. McBrien, S. J. Smartt, J. Gillanders, M. Fulton, D. R. Young, L. Shingles, M. McCollum,...
Source Group: ATLAS
Keywords: Supernova
Related Objects:
2021gdz [ATLAS21iid]
RA, DEC:11:53:19.022, +20:06:30.90
(178.329260, 20.108583)
Redshift:0.022
Type:SN II
See object 2021gdz [ATLAS21iid]
Here we report the ATLAS discovery of the transient ATLAS21iid (AT2021gdz) in galaxy KUG 1150+203 at magnitude m_c = 18.39 +/- 0.08. At a distance of 93 Mpc, the transient was discovered on MJD = ...
AstroNote 2021-87
Type: Object/s-Discovery/Classification
Released: 2021-03-19 11:08:38
Classification of the fast transient AT2021esi
C. Angus, L. Izzo (DARK, NBI), K. Tinyanont (UCSC)
Keywords: Transient, Supernova, Optical, Spectroscopy
Related Objects:
2021esi [ZTF21aaoiaar]
RA, DEC:06:50:03.350, +27:29:09.95
(102.513959, 27.486098)
Redshift:0.03
Type:SN IIb
See object 2021esi [ZTF21aaoiaar]
Related Notes:
2021-86
AstroNote 2021-862021-03-18 11:41:22
Title: Fast transient AT2021esi: combined ZTF, ATLAS and Pan-STARRS1 observations
Authors: T.-W. Chen (Stockholm), S. J. Smartt, M. Fulton (QUB), I....
Source Group: ATLAS
Here we report the classification of AT 2021esi as a Type IIb SN.
AstroNote 2021-85
Type: Object/s-Discovery/Classification
Released: 2021-03-16 15:10:43
ATLAS21iap (AT2021fpm): discovery of a candidate SN in MCG -02-51-008 (81 Mpc)
K. W. Smith, S. Srivastav, O. McBrien, S. J. Smartt, J. Gillanders, M. Fulton, D. R. Young, L. Shingles, M. McCollum,...
Source Group: ATLAS
Keywords: Supernova
Related Objects:
2021fpm [ATLAS21iap]
RA, DEC:20:17:06.940, -12:05:40.63
(304.278917, -12.094619)
Redshift:0.019
Type:SN Ia
See object 2021fpm [ATLAS21iap]
Here we report the ATLAS discovery of the transient ATLAS21iap (AT2021fpm) in galaxy MCG -02-51-008 at magnitude m_o = 16.69 +/- 0.04. At a distance of 81 Mpc, the transient was discovered on MJD ...
AstroNote 2021-84
Type: Object/s-Discovery/Classification
Released: 2021-03-13 18:22:13
ePESSTO+ spectroscopic classification of optical transients
E. Kankare, T. Nagao, N. Koivisto (Turku), S. Gonzalez-Gaitan, J. Silvestre (CENTRA), G. Pignata (UNAB), S. Taubenber...
Source Group: ePESSTO+
Keywords: Transient, Supernova, Optical, Spectroscopy
Related Objects:
2021epp
RA, DEC:08:10:55.286, -06:02:49.39
(122.730357, -6.047053)
Redshift:0.0385
Type:SN Ic-BL
See object 2021epp
,
2021fco
RA, DEC:10:39:53.753, +21:50:40.11
(159.973971, 21.844475)
Redshift:0.056
Type:SN Ia
See object 2021fco
,
2021epv
RA, DEC:10:09:35.855, -13:02:31.43
(152.399395, -13.042064)
Redshift:0.031
Type:SN Ia
See object 2021epv
,
2021ewa
RA, DEC:15:35:49.619, +06:48:40.44
(233.956745, 6.811233)
Redshift:0.0327
Type:SN I
See object 2021ewa
,
2021feu
RA, DEC:18:09:54.917, +11:18:05.49
(272.478820, 11.301526)
Redshift:0.04
Type:SN Ia
See object 2021feu
This report includes classifications of 5 transients.
AstroNote 2021-82
Type: Object/s-Discovery/Classification
Released: 2021-03-06 17:38:08
ePESSTO+ spectroscopic classification of optical transients
J. Silvestre, S. González-Gaitán (LIsbon), S. Moran, T. Reynolds, H. Kuncarayakti (Turku), T.-W. Chen (Stockholm), L...
Source Group: ePESSTO+
Keywords: Transient, Supernova, Optical, Spectroscopy
Related Objects:
2021bxq [ZTF21aafmkjk]
RA, DEC:14:31:38.031, +06:10:44.70
(217.908462, 6.179082)
Redshift:0.09
Type:SN IIn
See object 2021bxq [ZTF21aafmkjk]
Related Notes:
2021-80
AstroNote 2021-802021-03-02 00:28:49
Title: ZTF superluminous supernova candidates
Authors: Ting-Wan Chen, Steve Schulze (OKC), Daniel Perley (LJMU),...
Source Group: ZTF
This report includes the classification of AT 2021bxg as a Type IIn SN.
AstroNote 2021-81
Type: Object/s-Discovery/Classification
Released: 2021-03-04 16:44:31
ePESSTO+ spectroscopic classification of optical transients
S. Moran (Turku), S. González-Gaitán, J. Silvestre (Lisbon), H. Kuncarayakti, T. Reynolds, C. Gutiérrez (Turku), T.-...
Source Group: ePESSTO+
Keywords: Transient, Supernova, Optical, Spectroscopy
Related Objects:
2021ddc
RA, DEC:12:20:46.175, +27:53:05.38
(185.192396, 27.884828)
Redshift:0.0504
Type:SN
See object 2021ddc
,
2021dhy
RA, DEC:11:03:29.158, -14:38:20.34
(165.871491, -14.638984)
Redshift:0.0664
Type:SN Ia
See object 2021dhy
,
2021dib
RA, DEC:11:34:56.671, +09:02:19.19
(173.736128, 9.038663)
Redshift:0.086
Type:SN I
See object 2021dib
,
2021dqo
RA, DEC:08:51:39.097, +23:56:09.40
(132.912903, 23.935944)
Redshift:0.078
Type:SN Ia
See object 2021dqo
,
2021duv
RA, DEC:11:45:54.651, +22:27:15.94
(176.477712, 22.454427)
Redshift:0.0227
Type:SN II
See object 2021duv
,
2021eij
RA, DEC:14:29:33.108, +10:56:29.68
(217.387951, 10.941577)
Redshift:0.1
Type:SN Ia
See object 2021eij
,
2021ecu
RA, DEC:16:33:11.580, +09:34:01.78
(248.298250, 9.567161)
Redshift:0.068
Type:SN Ia-91T-like
See object 2021ecu
This report includes classifications of 7 transients.
AstroNote 2021-80
Type: Object/s-Discovery/Classification
Released: 2021-03-04 14:34:14
ZTF superluminous supernova candidates
Ting-Wan Chen, Steve Schulze (OKC), Daniel Perley (LJMU), Lin Yan (Caltech), Ragnhild Lunnan, Tuomas Kangas, Jesper S...
Source Group: ZTF
Keywords: Supernova, Transient
Related Objects:
2021ejo [ZTF21aaherjf]
RA, DEC:10:31:38.990, +31:00:04.50
(157.912458, 31.001250)
Redshift:
Type:
See object 2021ejo [ZTF21aaherjf]
,
2021ejp [ZTF21aahfqxb]
RA, DEC:16:59:25.260, +25:57:57.90
(254.855250, 25.966083)
Redshift:
Type:
See object 2021ejp [ZTF21aahfqxb]
,
2021eik [ZTF21aagdrdu]
RA, DEC:17:00:55.730, +35:32:03.30
(255.232208, 35.534250)
Redshift:
Type:
See object 2021eik [ZTF21aagdrdu]
,
2020aexd [ZTF21aadasoq]
RA, DEC:14:17:39.490, +15:57:45.30
(214.414542, 15.962583)
Redshift:
Type:
See object 2020aexd [ZTF21aadasoq]
,
2021cjk [ZTF21aabjajq]
RA, DEC:03:11:34.491, +09:40:36.49
(47.893713, 9.676804)
Redshift:
Type:
See object 2021cjk [ZTF21aabjajq]
,
2021eil [ZTF21aagktfv]
RA, DEC:01:04:10.160, -03:04:21.60
(16.042333, -3.072667)
Redshift:
Type:
See object 2021eil [ZTF21aagktfv]
,
2021clq [ZTF21aagnkdp]
RA, DEC:08:11:48.190, +44:23:28.55
(122.950792, 44.391264)
Redshift:
Type:
See object 2021clq [ZTF21aagnkdp]
,
2020ader [ZTF20acydasr]
RA, DEC:23:48:44.490, +14:18:56.27
(357.185375, 14.315631)
Redshift:
Type:
See object 2020ader [ZTF20acydasr]
,
2021bxq [ZTF21aafmkjk]
RA, DEC:14:31:38.031, +06:10:44.70
(217.908462, 6.179082)
Redshift:0.09
Type:SN IIn
See object 2021bxq [ZTF21aafmkjk]
,
2021chd [ZTF21aafkphe]
RA, DEC:13:26:32.590, +59:46:43.43
(201.635792, 59.778731)
Redshift:
Type:
See object 2021chd [ZTF21aafkphe]
We report ten ZTF superluminous supernova candidates selected by our software filter and subsequent vetting. In this sample, a typical rise time is about 50 days and a typical peak r-band magnitude...
AstroNote 2021-79
Type: Object/s-Discovery/Classification
Released: 2021-03-03 15:45:14
ePESSTO+ spectroscopic classification of optical transients
S. González-Gaitán, J. Silvestre (Lisbon), S. Moran, H. Kuncarayakti, T. Reynolds, C. Gutiérrez (Turku), T.-W. Chen ...
Source Group: ePESSTO+
Keywords: Transient, Supernova, Optical, Spectroscopy
Related Objects:
2021dwg [ZTF21aannoix]
RA, DEC:14:18:15.969, +00:53:18.35
(214.566538, 0.888430)
Redshift:0.026
Type:SN Ic
See object 2021dwg [ZTF21aannoix]
This report includes the classification of AT 2021dwg as a Type Ic SN.
AstroNote 2021-76
Type: Object/s-Discovery/Classification
Released: 2021-02-23 11:00:13
Introducing a new Supernova classification type: SN Icn
Avishay Gal-Yam, Ofer Yaron (WIS), Andrea Pastorello (INAF), Stefan Taubenberger (MPA), Morgan Fraser (UCD), Daniel P...
Keywords: Supernova
Related Objects:
2019hgp [ZTF19aayejww]
RA, DEC:15:36:12.874, +39:44:00.56
(234.053641, 39.733489)
Redshift:0.0641
Type:SN Icn
See object 2019hgp [ZTF19aayejww]
,
2010mb
RA, DEC:16:00:23.100, +37:44:57.01
(240.096250, 37.749170)
Redshift:
Type:SN Ic
See object 2010mb
,
2021csp [ZTF21aakilyd]
RA, DEC:14:26:22.114, +05:51:33.18
(216.592143, 5.859216)
Redshift:0.083
Type:SN Icn
See object 2021csp [ZTF21aakilyd]
,
2021ckj [ZTF21aajbgol]
RA, DEC:09:05:51.083, -08:35:07.56
(136.462846, -8.585434)
Redshift:0.143
Type:SN Icn
See object 2021ckj [ZTF21aajbgol]
Related Notes:
2021-62
AstroNote 2021-622021-02-12 16:34:14
Title: ZTF/LT discovery of a fast, luminous blue transient with narrow carbon features
Authors: Daniel Perley (LJMU), Yuhan Yao (Caltech), Steve Schulze ...
Source Group: ZTF
,
2021-71
AstroNote 2021-712021-02-17 17:14:35
Title: adH0cc spectroscopic classification of SN 2021ckj, an unusual "Type Icn" supernova
Authors: A. Pastorello (INAF Padova), C. Vogl, S. Taubenberger, A....
Source Group: adH0cc
Motivated by recent discovery and classification reports of transients with spectra showing prominent narrow emission lines of carbon and/or oxygen, but lacking lines of hydrogen and helium, we pro...
AstroNote 2021-75
Type: Object/s-Discovery/Classification
Released: 2021-02-22 21:52:23
adH0cc spectroscopic classification of SN 2021crx, an unusually luminous low-velocity Type II supernova
G. Csoernyei, S. Taubenberger, C. Vogl, A. Floers, M. G. Cudmani, A. Holas, W. Hillebrandt, S. H. Suyu (MPA Garching)...
Source Group: adH0cc
Keywords: Transient, Supernova, Spectroscopy, Optical
Related Objects:
2021crx [ZTF21aakigqr]
RA, DEC:13:21:53.976, +08:36:20.34
(200.474900, 8.605650)
Redshift:0.066866
Type:SN II
See object 2021crx [ZTF21aakigqr]
Related Notes:
2019-103
AstroNote 2019-1032019-10-14 18:15:04
Title: adH0cc spectroscopic classification of SN 2019rsw
Authors: B. Leibundgut, J. Spyromilio (ESO), C. Vogl, A. Flörs, S....
We have obtained an optical spectrum of SN 2021crx, which shows it to be an unusually luminous member of the class of low-velocity Type II supernovae.
AstroNote 2021-74
Type: Object/s-Discovery/Classification
Released: 2021-02-22 18:57:28
ATLAS21grj (AT2021dnn): discovery of a candidate supernova in NGC 0304 (65 Mpc)
S. Srivastav, K. W. Smith, O. McBrien, S. J. Smartt, J. Gillanders, M. Fulton, D. R. Young, L. Shingles, M. McCollum,...
Source Group: ATLAS
Keywords: Supernova
Related Objects:
2021dnn [ATLAS21grj]
RA, DEC:00:56:06.282, +24:07:31.18
(14.026173, 24.125327)
Redshift:0.016648
Type:SN Ia
See object 2021dnn [ATLAS21grj]
Here we report the ATLAS discovery of the transient ATLAS21grj (AT2021dnn) in galaxy NGC 0304 at magnitude o = 15.71 +/- 0.03. At a distance of 65 Mpc, the transient was discovered on MJD = 59267.2...
AstroNote 2021-72
Type: Object/s-Discovery/Classification
Released: 2021-02-22 16:00:36
ePESSTO+ spectroscopic classification of optical transients
L. Harvey, S. Prentice, M. Deckers, M. Magee (TCD), S. Schulze (Stockholm), J. Teffs (LJMU), S. Gonzalez-Gaitan (CENT...
Source Group: ePESSTO+
Keywords: Transient, Supernova, Optical, Spectroscopy
Related Objects:
2021djz [ZTF21aalnxkl]
RA, DEC:13:31:55.498, -02:27:05.38
(202.981242, -2.451494)
Redshift:0.087
Type:SN Ia
See object 2021djz [ZTF21aalnxkl]
This report includes the classification of one Type Ia SN at pre-maximum.

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AstroNote 2020-100
Released: 2020-05-07
Views Count: 1625
Classification of SN 2020jfo (ZTF20aaynrrh) as a young Type II supernova
Daniel Perley (LJMU), Cristina Barbarino (Stockholm), Jesper Sollerman (Stockholm), Tassilo Schwe...
AstroNote 2019-163
Released: 2019-12-31
Views Count: 1206
ePESSTO+ re-classification of AT2019xis as a light echo of SN 1987A in the LMC.
S. Taubenberger (MPA), D. Malesani (DTU Space), G. Terreran (Northwestern), S. J. Smartt (QUB), A...
AstroNote 2020-126
Released: 2020-06-25
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ATLAS20qoq (AT2020nlb): discovery of a candidate SN in MESSIER 85 (17 Mpc)
A. Townsend (Queen's University Belfast / University of Manchester), K. W. Smith, S. Srivast...
AstroNote 2019-8
Released: 2019-05-03
Views Count: 979
Classification of AT 2019ein as a young SN Ia-peculiar
Jamison Burke (Las Cumbres Observatory/UC Santa Barbara), Iair Arcavi (Tel Aviv University), D. A...
AstroNote 2020-99
Released: 2020-05-07
Views Count: 859
ZTF early discovery and rapid follow-up of the infant SN ZTF20aaynrrh / 2020jfo
Steve Schulze (WIS), Jesper Sollermann (OKC), Daniel A. Perley (LJMU), Anna Ho (Caltech), Yi Yang...
AstroNote 2019-2
Released: 2019-03-25
Views Count: 842
Possible LBV Eruption at the Site of SN 2010ct
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AstroNote 2019-48
Released: 2019-07-20
Views Count: 817
Pan-STARRS Search for Kilonovae : discovery of an intrinsically faint transient in UGC 12798 (68 Mpc)
S. J. Smartt, (Queen's University Belfast), K. C. Chambers, (IfA, University of Hawaii) K. W...
AstroNote 2019-33
Released: 2019-06-14
Views Count: 687
Long rise and bump feature in the lightcurve of AT2019fdr - spectroscopy requested
S. J. Smartt, K. W. Smith, O. McBrien, S. Srivastav, J. Gillanders (Queen's University Belfa...
AstroNote 2019-1
Released: 2019-03-25
Views Count: 658
The AstroNotes notifications system
Avishay Gal-Yam, Ofer Yaron, Avner Sass, Eran Ofek, Nikola Knezevic, Ilan Manulis (WIS)
AstroNote 2019-79
Released: 2019-08-28
Views Count: 647
ZTF and LT Discovery of the Bright, Nearby Superluminous Supernova SN 2019neq / ZTF19abpbopt
Daniel A. Perley (LJMU), Lin Yan (Caltech), Avishay Gal-Yam (Weizmann), Steve Schulze (Weizmann),...

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