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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
Related Objects:
2021irn
RA, DEC:14:28:44.827, +00:42:46.94
(217.186780, 0.713040)
Redshift:
Type:
,
2021iro
RA, DEC:14:28:52.766, +02:25:37.45
(217.219860, 2.427070)
Redshift:
Type:
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...
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
Related Objects:
2021hud [PS21cvi]
RA, DEC:16:01:53.305, +20:15:30.01
(240.472104, 20.258337)
Redshift:0.047469
Type:SN II
We report spectroscopic classification of AT2021hud as a SN II
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
Related Objects:
2021hca [PS21cku]
RA, DEC:11:20:46.858, +14:12:16.08
(170.195240, 14.204466)
Redshift:0.13
Type:SN Ia
,
2021gfv [ZTF21aaptmqr]
RA, DEC:15:43:22.055, +12:57:36.09
(235.841894, 12.960026)
Redshift:0.111
Type:SN Ia
,
2021hol [ZTF21aarcldd]
RA, DEC:14:37:05.879, +34:37:59.06
(219.274496, 34.633072)
Redshift:0.084
Type:SN Ia
We report spectroscopic classifications of three SNe Ia.
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+
Related Objects:
2021dqw [ZTF21aamwvhr]
RA, DEC:16:06:38.926, +16:14:07.21
(241.662192, 16.235336)
Redshift:0.04
Type:SN II
,
2021htw [ATLAS21job]
RA, DEC:05:53:29.529, -35:02:07.02
(88.373036, -35.035284)
Redshift:0.08
Type:SN Ia
,
2021hfq [Gaia21bnr]
RA, DEC:07:57:54.900, -67:43:53.15
(119.478750, -67.731431)
Redshift:0.08
Type:SN Ia
,
2021hvo [ATLAS21jom]
RA, DEC:13:22:51.335, -40:46:36.15
(200.713895, -40.776708)
Redshift:0.051
Type:SN Ia
,
2021fox [ATLAS21hzm]
RA, DEC:09:57:36.350, -13:41:45.38
(149.401459, -13.695938)
Redshift:0.032
Type:SN II
,
2021hpv [ATLAS21jlk]
RA, DEC:10:02:57.332, -11:44:01.54
(150.738884, -11.733760)
Redshift:0.029
Type:SN Ic
,
2021hkf [ZTF21aaqyuun]
RA, DEC:11:44:23.267, +08:10:41.54
(176.096946, 8.178206)
Redshift:0.02
Type:SN II
,
2021fzq [ZTF21aapjmpq]
RA, DEC:15:01:07.290, +12:18:50.36
(225.280374, 12.313990)
Redshift:0.13
Type:SN Ia-91T-like
,
2021hse [ZTF21aarjehy]
RA, DEC:16:05:56.888, +14:40:42.58
(241.487035, 14.678493)
Redshift:0.04
Type:SN II
,
2021hgd [Gaia21boh]
RA, DEC:13:33:48.430, -53:20:04.92
(203.451792, -53.334700)
Redshift:0
Type:CV
,
2021hwk [ZTF21aasbxng]
RA, DEC:14:19:02.720, -07:23:26.14
(214.761334, -7.390593)
Redshift:0.041
Type:SN Ia
,
2021hji [ZTF21aaqztcg]
RA, DEC:16:48:41.125, +21:59:50.01
(252.171356, 21.997226)
Redshift:0.057
Type:SN Ia
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.
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+
Related Objects:
2021gqm [ZTF21aaqgrrf]
RA, DEC:10:15:02.681, +03:47:47.46
(153.761170, 3.796516)
Redshift:0.082
Type:SN Ia
,
2021fmu [ZTF21aaokvio]
RA, DEC:10:31:56.239, -15:57:19.71
(157.984331, -15.955475)
Redshift:0.14
Type:SLSN-II
This report includes classifications of 1 Type Ia and a re-classification of a superluminous supernova (SLSN) as a Type II SLSN.
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
Related Objects:
2021gyh [ZTF21aaqprjz]
RA, DEC:13:03:51.861, -03:27:06.28
(195.966087, -3.451746)
Redshift:0.08
Type:SN Ia
,
2021hlp [ZTF21aardybv]
RA, DEC:10:33:40.950, -03:42:23.91
(158.420624, -3.706643)
Redshift:0.065
Type:SN Ia
,
2021fsb [PS21bsq]
RA, DEC:10:20:56.665, -00:22:25.25
(155.236104, -0.373679)
Redshift:0.0535
Type:SN IIb
We report spectroscopic classifications of 3 optical transients, including two SNe Ia and one SN IIb.
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+
Related Objects:
2021elz [ZTF21aanefkx]
RA, DEC:14:00:10.848, -12:18:58.92
(210.045199, -12.316368)
Redshift:0.26
Type:SLSN-II
,
2021hku [ASASSN-21en]
RA, DEC:20:32:01.913, -53:44:58.27
(308.007970, -53.749520)
Redshift:0.011
Type:SN Ic-BL
This report includes classifications of 2 transients: a SN Ic-BL and a SLSN-II
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
Related Objects:
2021hpr
RA, DEC:10:16:38.641, +73:24:02.02
(154.161006, 73.400561)
Redshift:0.009346
Type:SN Ia
We report the spectroscopic classification of SN 2021hpr in NGC 3147 (z=0.009346)
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
We classify SN 2021dqs as a Type II SN. It's ZTF light curve indicates a rise time of >35 days with a rebrightening.
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...
Released: 2021-03-28 05:36:28
Public DECam Deep Drilling Program for COSMOS and the Galactic Bulge
Melissa L. Graham (U. Washington), Peter E. Nugent, Daniel A. Goldstein, Alex Kim (LBNL), Gautham Narayan, Monika Sor...
We announce a public Deep Drilling program with DECam which will produce public alerts from the individual griz exposures and the nightly deep stacks, and run from March to June 2021.
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
Related Objects:
2021ehb [ZTF21aanxhjv]
RA, DEC:03:07:47.806, +40:18:40.57
(46.949190, 40.311268)
Redshift:
Type:
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.
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
,
2021fpe [ZTF21aamftdg]
RA, DEC:12:49:24.360, +52:22:49.00
(192.351500, 52.380278)
Redshift:
Type:
,
2021fmu [ZTF21aaokvio]
RA, DEC:10:31:56.239, -15:57:19.71
(157.984331, -15.955475)
Redshift:0.14
Type:SLSN-II
,
2021dqw [ZTF21aamwvhr]
RA, DEC:16:06:38.926, +16:14:07.21
(241.662192, 16.235336)
Redshift:0.04
Type:SN II
,
2021bwf [ZTF21aahfjrr]
RA, DEC:16:35:02.950, +56:28:38.35
(248.762292, 56.477319)
Redshift:0.194
Type:SN IIn
,
2021gwf [ZTF21aalyubu]
RA, DEC:15:06:13.890, +20:04:14.34
(226.557875, 20.070650)
Redshift:
Type:
Related Notes:
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...
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
Related Objects:
2021ggl [PS21byg]
RA, DEC:14:34:39.162, -08:02:25.93
(218.663176, -8.040537)
Redshift:0.195
Type:SN Ia
Related Notes:
We have obtained an optical spectrum of SN 2021ggl, which shows it to be a young Type Ia supernova.
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+
Related Objects:
2021gmk [ATLAS21iqc]
RA, DEC:06:07:26.802, -45:00:14.89
(91.861674, -45.004135)
Redshift:0.041
Type:SN Ia
,
2021gvm [ZTF21aaqjmps]
RA, DEC:13:30:01.216, +13:24:40.24
(202.505068, 13.411179)
Redshift:0.0246
Type:SN II
,
2021glv [ZTF21aaqecpl]
RA, DEC:17:10:21.720, -03:13:51.86
(257.590501, -3.231072)
Redshift:0.029
Type:SN Ia
This report includes classifications of 3 transients.
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
Related Objects:
2021fwa [PS21bvk]
RA, DEC:13:00:29.833, +07:17:07.87
(195.124305, 7.285519)
Redshift:0.04157
Type:SN II
Related Notes:
We have obtained an optical spectrum of SN 2021fwa, which shows it to be a young Type II supernova.
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+
Related Objects:
2021fzp
RA, DEC:14:43:56.100, +16:24:47.70
(220.983750, 16.413250)
Redshift:0.053
Type:SN
,
2021fpm
RA, DEC:20:17:06.936, -12:05:40.59
(304.278901, -12.094607)
Redshift:0.019
Type:SN Ia
,
2021fxf
RA, DEC:18:33:54.210, -60:08:05.86
(278.475875, -60.134961)
Redshift:0.013
Type:SN Ic
This report includes classifications of 3 transients.
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
We identify SN 2021flc as a SLSN-I candidate.
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+
Related Objects:
2021fox
RA, DEC:09:57:36.350, -13:41:45.38
(149.401459, -13.695938)
Redshift:0.032
Type:SN II
,
2021foh
RA, DEC:13:20:40.892, -17:06:33.54
(200.170382, -17.109316)
Redshift:0.022
Type:SN Ia
,
2021fna
RA, DEC:10:16:22.749, -23:11:58.01
(154.094786, -23.199447)
Redshift:0.079
Type:SN Ia
,
2021gfo
RA, DEC:08:29:13.671, +26:40:09.97
(127.306963, 26.669435)
Redshift:0.0564
Type:SN I
This report includes classifications of 5 transients.
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
Related Objects:
2021fom [ZTF21aaprgdh]
RA, DEC:12:59:12.072, -04:12:14.44
(194.800301, -4.204012)
Redshift:0.09
Type:SN Ia
We report spectroscopic classification of AT2021fom as a SN Ia.
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
Related Objects:
2021gca [ZTF21aapkbav]
RA, DEC:14:28:07.331, +33:29:49.39
(217.030547, 33.497052)
Redshift:
Type:
Related Notes: ,
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 ...
Released: 2021-03-20 22:52:13
Liverpool Telescope spectroscopy of AT2021gno and AT2021gmj
Daniel Perley (LJMU) on behalf of ZTF
Source Group: ZTF
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:
Spectroscopy from the Liverpool Telescope shows AT2021gmj to be a young Type II supernova. The spectrum of AT2021gno is blue and featureless.
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:
Related Notes:
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....
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:12:12:10.294, +13:14:57.04
(183.042893, 13.249177)
Redshift:0.006211
Type:SN Ib
,
2021gmj [ZTF21aaqgmjt]
RA, DEC:10:38:47.279, +53:30:30.42
(159.696994, 53.508451)
Redshift:0.0034
Type:SN II
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...
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
Related Notes:
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...
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:
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...
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
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 = ...
Released: 2021-03-19 11:08:38
Classification of the fast transient AT2021esi
C. Angus, L. Izzo (DARK, NBI), K. Tinyanont (UCSC)
Related Objects:
2021esi [ZTF21aaoiaar]
RA, DEC:06:50:03.350, +27:29:09.95
(102.513959, 27.486098)
Redshift:0.03
Type:SN IIb
Related Notes:
Here we report the classification of AT 2021esi as a Type IIb SN.
Released: 2021-03-18 13:33:12
Fast transient AT2021esi: combined ZTF, ATLAS and Pan-STARRS1 observations
T.-W. Chen (Stockholm), S. J. Smartt, M. Fulton (QUB), I. Arcavi (Tel Aviv University), P. Jonker (Radboud University...
Source Group: ATLAS
Keywords: Supernova, Transient
Related Objects:
2021esi [ZTF21aaoiaar]
RA, DEC:06:50:03.350, +27:29:09.95
(102.513959, 27.486098)
Redshift:0.03
Type:SN IIb
We draw attention to the unusual lightcurve of AT2021esi from the combined ZTF and ATLAS survey data and Pan-STARRS1 observations. AT2021esi shows a rapidly rising and fast declining (1.5 mag in 10...
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:20:17:06.936, -12:05:40.59
(304.278901, -12.094607)
Redshift:0.019
Type:SN Ia
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 ...
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+
Related Objects:
2021epp
RA, DEC:08:10:55.286, -06:02:49.39
(122.730357, -6.047053)
Redshift:0.0385
Type:SN Ic-BL
,
2021fco
RA, DEC:10:39:53.753, +21:50:40.11
(159.973971, 21.844475)
Redshift:0.056
Type:SN Ia
,
2021epv
RA, DEC:10:09:35.855, -13:02:31.43
(152.399395, -13.042064)
Redshift:0.031
Type:SN Ia
,
2021ewa
RA, DEC:15:35:49.619, +06:48:40.44
(233.956745, 6.811233)
Redshift:0.0327
Type:SN I
,
2021feu
RA, DEC:18:09:54.917, +11:18:05.49
(272.478820, 11.301526)
Redshift:0.04
Type:SN Ia
This report includes classifications of 5 transients.
Released: 2021-03-08 19:16:21
UV and X-ray detection of optical tidal disruption event ZTF20acyydkh/AT2021ack
Erica Hammerstein (UMd), Suvi Gezari (UMd), Sjoert van Velzen (Leiden), Shri Kulkarni (Caltech), Yuhan Yao (Caltech),...
Source Group: ZTF
Keywords: TDE, Transient
Related Objects:
2021ack [ZTF20acyydkh]
RA, DEC:13:53:09.988, +09:44:25.35
(208.291618, 9.740374)
Redshift:0.133
Type:TDE
We report the UV and X-ray detection of optical tidal disruption event (TDE) ZTF20acyydkh/AT2021ack.
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+
Related Objects:
2021bxq [ZTF21aafmkjk]
RA, DEC:14:31:38.031, +06:10:44.70
(217.908462, 6.179082)
Redshift:0.09
Type:SN IIn
Related Notes:
This report includes the classification of AT 2021bxg as a Type IIn SN.
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+
Related Objects:
2021ddc
RA, DEC:12:20:46.175, +27:53:05.38
(185.192396, 27.884828)
Redshift:0.0504
Type:SN
,
2021dhy
RA, DEC:11:03:29.158, -14:38:20.34
(165.871491, -14.638984)
Redshift:0.0664
Type:SN Ia
,
2021dib
RA, DEC:11:34:56.668, +09:02:19.19
(173.736117, 9.038664)
Redshift:0.086
Type:SN I
,
2021dqo
RA, DEC:08:51:39.097, +23:56:09.40
(132.912903, 23.935944)
Redshift:0.078
Type:SN Ia
,
2021duv
RA, DEC:11:45:54.651, +22:27:15.94
(176.477712, 22.454427)
Redshift:0.0227
Type:SN II
,
2021eij
RA, DEC:14:29:33.108, +10:56:29.68
(217.387951, 10.941577)
Redshift:0.1
Type:SN Ia
,
2021ecu
RA, DEC:16:33:11.580, +09:34:01.78
(248.298250, 9.567161)
Redshift:0.068
Type:SN Ia-91T-like
This report includes classifications of 7 transients.
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:
,
2021ejp [ZTF21aahfqxb]
RA, DEC:16:59:25.260, +25:57:57.90
(254.855250, 25.966083)
Redshift:
Type:
,
2021eik [ZTF21aagdrdu]
RA, DEC:17:00:55.730, +35:32:03.30
(255.232208, 35.534250)
Redshift:
Type:
,
2020aexd [ZTF21aadasoq]
RA, DEC:14:17:39.490, +15:57:45.30
(214.414542, 15.962583)
Redshift:
Type:
,
2021cjk [ZTF21aabjajq]
RA, DEC:03:11:34.491, +09:40:36.49
(47.893713, 9.676804)
Redshift:
Type:
,
2021eil [ZTF21aagktfv]
RA, DEC:01:04:10.160, -03:04:21.60
(16.042333, -3.072667)
Redshift:
Type:
,
2021clq [ZTF21aagnkdp]
RA, DEC:08:11:48.190, +44:23:28.55
(122.950792, 44.391264)
Redshift:
Type:
,
2020ader [ZTF20acydasr]
RA, DEC:23:48:44.490, +14:18:56.27
(357.185375, 14.315631)
Redshift:
Type:
,
2021bxq [ZTF21aafmkjk]
RA, DEC:14:31:38.031, +06:10:44.70
(217.908462, 6.179082)
Redshift:0.09
Type:SN IIn
,
2021chd [ZTF21aafkphe]
RA, DEC:13:26:32.590, +59:46:43.43
(201.635792, 59.778731)
Redshift:
Type:
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...
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+
Related Objects:
2021dwg [ZTF21aannoix]
RA, DEC:14:18:15.969, +00:53:18.35
(214.566538, 0.888430)
Redshift:0.026
Type:SN Ic
This report includes the classification of AT 2021dwg as a Type Ic SN.
Released: 2021-02-27 21:22:40
Campo Imperatore observations of ZTF21aakilyd/AT2021csp.
F. Onori (INAF-OAAb), R. Carini (INAF-OAR), F. De Luise, N. Napoleone, P. Tedesco, E. Brocato, M. Canzari, M. Dolci, ...
Related Notes: ,
We report on optical observations of the fast blue transient ZTF21aakilyd/AT2021csp performed with Campo Imperatore Telescope.
Released: 2021-02-23 22:03:27
AT2021den : A faint and fast fading transient in the 126 Mpc galaxy PGC 024745
M. Fulton, S. J. Smartt, K. W. Smith (QUB), K. C. Chambers, M. Huber (IfA, Hawaii), O. R. McBrien, S. Srivastav, D. R...
Source Group: Pan-STARRS1
Keywords: Supernova, Transient
Related Objects:
2021den [PS21aed]
RA, DEC:08:48:25.062, +47:17:22.60
(132.104427, 47.289610)
Redshift:
Type:
Related Notes: ,
We draw attention to the intrinsically faint and fast fading lightcurve of AT2021den from the combined Pan-STARRS and ATLAS survey data. It had a measured peak at M_w = -15.0 and a decline rate of ...
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
,
2010mb
RA, DEC:16:00:23.100, +37:44:57.01
(240.096250, 37.749170)
Redshift:
Type:SN Ic
,
2021csp [ZTF21aakilyd]
RA, DEC:14:26:22.114, +05:51:33.18
(216.592143, 5.859216)
Redshift:0.083
Type:SN Icn
,
2021ckj [ZTF21aajbgol]
RA, DEC:09:05:51.083, -08:35:07.56
(136.462846, -8.585434)
Redshift:0.143
Type:SN Icn
Related Notes: ,
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...
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
Related Objects:
2021crx [ZTF21aakigqr]
RA, DEC:13:21:53.976, +08:36:20.34
(200.474900, 8.605650)
Redshift:0.066866
Type:SN II
Related Notes:
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.
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
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...
Released: 2021-02-22 17:12:14
Radio detection of the hydrogen-poor super-luminous supernova 2020tcw at 64 days post discovery
Deanne L. Coppejans, David Matthews, Raffaella Margutti, Giacomo Terreran, Wynn Jacobson-Galan (Northwestern U.), Edo...
Related Objects:
2020tcw [ATLAS20zst]
RA, DEC:15:28:17.080, +39:56:50.53
(232.071167, 39.947369)
Redshift:0.0645
Type:SLSN-I
Related Notes:
We have detected radio emission from the hydrogen-poor super-luminous supernova 2020tcw at 64 days post discovery.
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+
Related Objects:
2021djz [ZTF21aalnxkl]
RA, DEC:13:31:55.494, -02:27:05.34
(202.981225, -2.451483)
Redshift:0.087
Type:SN Ia
This report includes the classification of one Type Ia SN at pre-maximum.
Released: 2021-02-18 20:44:26
adH0cc spectroscopic classification of SN 2021ckj, an unusual "Type Icn" supernova
A. Pastorello (INAF Padova), C. Vogl, S. Taubenberger, A. Floers, G. Csoernyei, M. G. Cudmani, A. Holas, W. Hillebran...
Source Group: adH0cc
Related Objects:
2021ckj [ZTF21aajbgol]
RA, DEC:09:05:51.083, -08:35:07.56
(136.462846, -8.585434)
Redshift:0.143
Type:SN Icn
Related Notes: ,
We have obtained an optical spectrum of SN 2021ckj, which shows it to be an unusual Type I supernova with narrow carbon and helium lines superimposed on a blue continuum with several broad spectral...
Released: 2021-02-17 21:22:01
ATLAS21gks (AT2021dct): discovery of a candidate supernova in NGC 1207 (64 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:
2021dct [ATLAS21gks]
RA, DEC:03:08:14.489, +38:22:38.73
(47.060372, 38.377424)
Redshift:0.016011
Type:SN Ia
Here we report the ATLAS discovery of the transient ATLAS21gks (AT2021dct) in galaxy NGC 1207 at magnitude o = 19.31 +/- 0.17. At a distance of 64 Mpc, the transient was discovered on MJD = 59262.2...
Released: 2021-02-16 22:49:57
ATLAS21ghj (AT2021dch): discovery of a candidate supernova in WISEA J130523.61+293037.2 (88 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:
2021dch [ATLAS21ghj]
RA, DEC:13:05:23.761, +29:30:34.67
(196.349006, 29.509629)
Redshift:0.020165
Type:SN Ia
Here we report the ATLAS discovery of the transient ATLAS21ghj (AT2021dch) in galaxy WISEA J130523.61+293037.2 at magnitude c = 18.42 +/- 0.08. At a distance of 88 Mpc, the transient was discovered...
Released: 2021-02-16 16:48:10
ePESSTO+ spectroscopic classification of optical transients
L. Harvey, M. Magee, S. Prentice, M. Deckers (TCD), S. Schulze (Weizmann), J. Teffs (LJMU), S. Gonzalez-Gaitan (CENTR...
Source Group: ePESSTO+
Related Objects:
2021cle [ATLAS21eft]
RA, DEC:05:15:58.878, -38:47:38.08
(78.995327, -38.793910)
Redshift:0.059
Type:SN Ia
,
2021cpg [ATLAS21epl]
RA, DEC:05:19:56.653, -33:58:51.94
(79.986054, -33.981095)
Redshift:0.077
Type:SN Ia
,
2021clw [ASASSN-21bg]
RA, DEC:05:51:19.939, -50:34:57.14
(87.833080, -50.582540)
Redshift:0.0234
Type:SN Ia
,
2021css [ASASSN-21bn]
RA, DEC:08:13:40.428, -67:49:23.20
(123.418450, -67.823110)
Redshift:
Type:CV
,
2021dbg [ATLAS21gfy]
RA, DEC:09:24:26.796, -06:34:53.12
(141.111650, -6.581422)
Redshift:0.02
Type:SN II
,
2021ctn [ATLAS21fhx]
RA, DEC:10:52:54.363, -00:46:21.33
(163.226511, -0.772591)
Redshift:0.0946
Type:SN Ia-91T-like
This report includes classifications of 3 normal Type Ia SNe, one SN Ia-91T, one young Type II SN showing flash features, and one object was classified as a CV.
Released: 2021-02-16 00:33:44
ATLAS21gfy (AT2021dbg): discovery of a candidate SN in MCG -01-24-014 (92 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:
2021dbg [ATLAS21gfy]
RA, DEC:09:24:26.796, -06:34:53.12
(141.111650, -6.581422)
Redshift:0.02
Type:SN II
Here we report the ATLAS discovery of the transient ATLAS21gfy (AT2021dbg) in galaxy MCG -01-24-014 at magnitude m_c = 18.13 +/- 0.06. At a distance of 92 Mpc, the transient was discovered on MJD ...
Released: 2021-02-15 20:59:32
Radio detection of the hydrogen-poor super-luminous supernova SN 2017ens at 3.6 years post explosion
Deanne L. Coppejans (Northwestern U.), David Matthews (Northwestern U.), Raffaella Margutti (Northwestern U.), Giacom...
Related Objects:
2017ens [ATLAS17gqa]
RA, DEC:12:04:09.367, -01:55:52.25
(181.039030, -1.931180)
Redshift:
Type:
We report the detection of 6 GHz radio emission from the hydrogen-poor super-luminous supernova 2017ens
Released: 2021-02-14 23:28:59
ATLAS21flz (AT2021cwc): discovery of a candidate supernova in UGC 03502 (90 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:
2021cwc [ATLAS21flz]
RA, DEC:06:39:46.830, +65:27:07.42
(99.945125, 65.452061)
Redshift:0.021
Type:SN Ia
Here we report the ATLAS discovery of the transient ATLAS21flz (AT2021cwc) in galaxy UGC 03502 at magnitude c = 18.25 +/- 0.09. At a distance of 90 Mpc, the transient was discovered on MJD = 59258....

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Released: 2020-05-07
Views Count: 1618
Classification of SN 2020jfo (ZTF20aaynrrh) as a young Type II supernova
Daniel Perley (LJMU), Cristina Barbarino (Stockholm), Jesper Sollerman (Stockholm), Tassilo Schwe...
Released: 2019-12-31
Views Count: 1200
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...
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...
Released: 2019-05-03
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Classification of AT 2019ein as a young SN Ia-peculiar
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Released: 2020-05-07
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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...
Released: 2019-03-25
Views Count: 841
Possible LBV Eruption at the Site of SN 2010ct
Ron Arbour
Released: 2019-07-20
Views Count: 811
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...
Released: 2019-06-14
Views Count: 684
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...
Released: 2019-03-25
Views Count: 657
The AstroNotes notifications system
Avishay Gal-Yam, Ofer Yaron, Avner Sass, Eran Ofek, Nikola Knezevic, Ilan Manulis (WIS)
Released: 2019-08-28
Views Count: 645
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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