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AstroNote 2024-67
Type: Object/s-Discovery/Classification
Released: 2024-03-07 17:50:44
Serendipitous Discovery of Optical Transient with GMOS
Wynn Jacobson-Galán (UC Berkeley), Charlie Kilpatrick (Northwestern University)
Source Group: YSE
Keywords: Photometry, Transient
Related Objects:
2024dzc
RA, DEC:03:24:21.750, -21:33:33.16
(51.090625, -21.559211)
Redshift:
Type:
See object 2024dzc
We report the serendipitous discovery of an optical transient in NGC 1325 using Gemini GMOS-S.
AstroNote 2024-5
Type: Object/s-Discovery/Classification
Released: 2024-01-04 18:33:49
YSE Spectroscopic Classification of Transients with GMOS
Wynn Jacobson-Galán (UCB), Charlotte Angus (QUB), Ryan Foley, Kyle Davis (UCSC), on behalf of the YSE collaboration
Source Group: YSE
Keywords: Spectroscopy, Transient, Supernova, Optical
Related Objects:
2024fa [PS24ca]
RA, DEC:02:25:01.360, -24:47:12.88
(36.255667, -24.786911)
Redshift:0.01
Type:SN II
See object 2024fa [PS24ca]
The Young Supernova Experiment (YSE) collaboration reports the classification of 1 optical transient using the Gemini GMOS-N: 1 type II supernova within days of explosion.
AstroNote 2024-4
Type: Object/s-Discovery/Classification
Released: 2024-01-03 20:32:51
YSE Spectroscopic Classification of Transients with GMOS
Wynn Jacobson-Galán (UCB), J. Gillanders, S. J. Smartt, S. Srivastav, H. Stevance (Oxford), M. Fulton, M. Nicholl, K....
Source Group: YSE
Keywords: Transient, Supernova, Spectroscopy, Optical
Related Objects:
2023abbd
RA, DEC:23:02:53.530, +26:01:35.83
(345.723042, 26.026619)
Redshift:0.042
Type:SN Ibn
See object 2023abbd
The Young Supernova Experiment (YSE) collaboration reports the classification of 1 optical transient using the Gemini GMOS-N: 1 type Ibn supernova.
AstroNote 2021-184
Type: Object/s-Discovery/Classification
Released: 2021-07-02 11:30:01
Spectroscopic Classifications of Optical Transients with the SOAR telescope
G. Dimitriadis (TCD), R. J. Foley (UCSC), G. Terreran (Northwestern), C. R. Angus, (DARK)
Source Group: YSE
Keywords: Supernova, Transient, Optical, Spectroscopy
Related Objects:
2021qwm [ZTF21abdxhgv]
RA, DEC:15:18:25.732, +28:26:04.17
(229.607215, 28.434492)
Redshift:0.07
Type:SN Ib/c
See object 2021qwm [ZTF21abdxhgv]
,
2021rem [PS21gti]
RA, DEC:15:19:47.730, +13:41:15.40
(229.948875, 13.687611)
Redshift:0.03
Type:SN II
See object 2021rem [PS21gti]
,
2021qdl [ZTF21abbmcqq]
RA, DEC:16:46:40.728, -20:54:23.80
(251.669699, -20.906612)
Redshift:0
Type:
See object 2021qdl [ZTF21abbmcqq]
,
2021qes [PS21fyk]
RA, DEC:21:14:32.785, -01:11:46.57
(318.636604, -1.196269)
Redshift:0.04
Type:SN II
See object 2021qes [PS21fyk]
,
2021qzp [ATLAS21ztj]
RA, DEC:00:47:35.640, -20:25:40.15
(11.898500, -20.427819)
Redshift:0.02
Type:SN Ib/c
See object 2021qzp [ATLAS21ztj]
,
2021qxu [ZTF21abiacmi]
RA, DEC:00:31:29.370, +17:23:00.02
(7.872375, 17.383339)
Redshift:0.038
Type:SN Ia
See object 2021qxu [ZTF21abiacmi]
,
2021qua [PS21gpj]
RA, DEC:21:26:59.466, +10:07:43.06
(321.747775, 10.128629)
Redshift:0.071
Type:SN Ia-91T-like
See object 2021qua [PS21gpj]
,
2021rgs [ATLAS21zvz]
RA, DEC:12:19:38.969, +11:59:51.34
(184.912371, 11.997595)
Redshift:0.064
Type:SN Ia
See object 2021rgs [ATLAS21zvz]
We report spectroscopic classifications of 8 optical transients, including 3 SNe Ia, 2 SNe II, 2 SNe I b/c and one galactic microlensing event.
AstroNote 2021-178
Type: Object/s-Discovery/Classification
Released: 2021-06-24 18:26:24
Young Supernova Experiment Classifications of Optical Transients
C. R. Angus, (DARK), C. Rojas-Bravo (UCSC), W. Jacobson-Galán, L. DeMarchi (Northwestern), L. Izzo (DARK)
Source Group: YSE
Keywords: Supernova, Transient, Optical, Spectroscopy
Related Objects:
2021qvv [ATLAS21zra]
RA, DEC:12:28:02.920, +09:48:10.26
(187.012167, 9.802850)
Redshift:0.001825
Type:SN Ia-91bg-like
See object 2021qvv [ATLAS21zra]
,
2021qvo [ATLAS21zqb]
RA, DEC:22:08:12.080, +07:07:00.78
(332.050333, 7.116883)
Redshift:0.05
Type:SN Ia
See object 2021qvo [ATLAS21zqb]
,
2021qbc
RA, DEC:19:30:02.610, +35:02:46.72
(292.510875, 35.046311)
Redshift:0.046
Type:SN II-pec
See object 2021qbc
,
2021qiu [ZTF21abhhrpj]
RA, DEC:21:45:50.082, +15:11:01.41
(326.458676, 15.183724)
Redshift:0.029169499874115
Type:SN II
See object 2021qiu [ZTF21abhhrpj]
Related Notes:
2021-173
AstroNote 2021-1732021-06-15 09:19:11
Title: Spectroscopic Classification of Optical Transients with the Lick Shane Telescope
Authors: M. R. Siebert, K. Taggart, R. J. Foley (UCSC)
Source Group: UCSC
We report spectroscopic classifications of 4 optical transients (2 SNe Ia and 2 SNe II), including a young SN Ia at 15Mpc.
AstroNote 2021-130
Type: Object/s-Discovery/Classification
Released: 2021-04-20 06:50:13
Spectroscopic Classifications of Optical Transients with SOAR
G. Dimitriadis, R.J. Foley (UCSC), C. R. Angus (DARK)
Source Group: YSE
Keywords: Supernova, Transient, Optical, Spectroscopy
Related Objects:
2021iok [PS21cwu]
RA, DEC:15:07:33.050, -12:12:52.87
(226.887706, -12.214685)
Redshift:0.128
Type:SN Ia
See object 2021iok [PS21cwu]
,
2021frk [PS21bry]
RA, DEC:12:39:21.612, -00:24:51.75
(189.840051, -0.414374)
Redshift:0.132
Type:SN Ia
See object 2021frk [PS21bry]
,
2021ipj [ATLAS21lay]
RA, DEC:10:59:47.720, -07:00:27.79
(164.948833, -7.007719)
Redshift:0.11
Type:SN Ia-91T-like
See object 2021ipj [ATLAS21lay]
,
2021kcc [PS21dje]
RA, DEC:12:56:07.943, -04:57:38.17
(194.033094, -4.960602)
Redshift:0.18
Type:SN Ia
See object 2021kcc [PS21dje]
We report spectroscopic classifications of three SNe-Ia and one 91T-like event.
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 2021-109
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:13:03:51.866, -03:27:06.31
(195.966110, -3.451754)
Redshift:0.08
Type:SN Ia
See object 2021gyh [ZTF21aaqprjz]
,
2021hlp [ZTF21aardybv]
RA, DEC:10:33:40.940, -03:42:23.98
(158.420583, -3.706661)
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 2021-95
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 2020-128
Type: Object/s-Discovery/Classification
Released: 2020-06-26 16:22:07
Young Supernova Experiment classifications
C. R. Angus, K. Auchettl, J. Hjorth, L. Izzo (DARK), D. French (Carnegie), R. Foley (UCSC)
Source Group: YSE
Keywords: Supernova, Optical, TDE, Time-domain
Related Objects:
2020mks [ZTF20abekcdt]
RA, DEC:15:45:49.215, +19:41:04.80
(236.455062, 19.684667)
Redshift:0.049
Type:SN II
See object 2020mks [ZTF20abekcdt]
,
2020lbh [PS20dlu]
RA, DEC:13:43:25.011, +35:11:02.78
(205.854210, 35.184105)
Redshift:0.015
Type:SN Ic
See object 2020lbh [PS20dlu]
,
2020neh [PS20elo]
RA, DEC:15:21:20.090, +14:04:10.52
(230.333708, 14.069589)
Redshift:0.062
Type:TDE
See object 2020neh [PS20elo]
We report the spectroscopic classification/s of 1 Type II and 1 Type Ic. We also report AT2020neh, which is a fast rising blue transient located in an apparently low mass host at z=0.062. The spect...
AstroNote 2019-148
Type: Announcement-Campaign/Survey
Released: 2019-12-05 17:28:53
The Young Supernova Experiment - Survey Announcement and First Discoveries
D. O. Jones (UC Santa Cruz), K. D. French (Carnegie, Illinois), A. Agnello, C. R. Angus, Z. Ansari, N. Arendse, C. Ga...
Source Group: YSE
Keywords: Surveys, Photometry, Transient, Supernova, Optical
Related Objects:
2019wbv
RA, DEC:08:58:45.393, -04:33:56.23
(134.689137, -4.565621)
Redshift:
Type:
See object 2019wbv
,
2019wbw
RA, DEC:10:02:43.193, -08:38:29.13
(150.679971, -8.641425)
Redshift:
Type:
See object 2019wbw
,
2019wby
RA, DEC:07:37:09.812, +42:12:20.68
(114.290882, 42.205745)
Redshift:
Type:
See object 2019wby
,
2019wbz
RA, DEC:08:55:18.513, -04:20:19.79
(133.827137, -4.338830)
Redshift:
Type:
See object 2019wbz
,
2019wcb
RA, DEC:07:38:00.772, +39:42:26.76
(114.503218, 39.707434)
Redshift:
Type:
See object 2019wcb
,
2019wcc
RA, DEC:07:29:36.088, +42:06:29.41
(112.400365, 42.108170)
Redshift:
Type:
See object 2019wcc
We report the start of the Young Supernova Experiment, a new collaboration between DARK (U Copenhagen; PIs Hjorth and Ramirez-Ruiz), UC Santa Cruz (PIs Foley and Ramirez-Ruiz), U Illinois (PIs Fren...

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Onset of SN 2023ixf observed over East Asian longitudes
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ePESSTO+ re-classification of AT2019xis as a light echo of SN 1987A in the LMC.
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Released: 2020-03-30
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Fast Radio Bursts (FRBs) now reported to and distributed via the TNS
O. Yaron, E. Ofek, A. Gal-Yam, A. Sass (Weizmann)

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