Showing results 1 to 50 out of 1,865
AstroNote 2026-98
Type: Object/s-Discovery/Classification
Released: 2026-04-05 15:25:30
ATLAS26dru (AT2026ihi): discovery of a candidate SN in NGC 3861 (88 Mpc)
K. W. Smith (Oxford/QUB), D. R. Young, M. Nicholl, M. Fulton, M. McCollum, T. Moore, J. Weston, X. Sheng, A. Aamer, C. …
Source Group: ATLAS
Keywords: Supernova
Related Objects:
2026ihi [ATLAS26dru]
RA, DEC:11:45:04.582, +19:58:15.60
(176.269092, 19.971001)
Redshift:0.017
Type:SN II
See object 2026ihi [ATLAS26dru]
Here we report the ATLAS discovery of the transient ATLAS26dru (AT2026ihi) in galaxy NGC 3861 at magnitude m_o = 18.18 +/- 0.11. At a distance of 88 Mpc (redshift independent, from NED), the transie…
AstroNote 2026-97
Type: Object/s-Discovery/Classification
Released: 2026-04-03 21:37:32
ATLAS26drr (AT2026idu): discovery of a candidate SN in IC 5328B (40 Mpc)
K. W. Smith (Oxford/QUB), D. R. Young, M. Nicholl, M. Fulton, M. McCollum, T. Moore, J. Weston, X. Sheng, A. Aamer, C. …
Source Group: ATLAS
Keywords: Supernova
Related Objects:
2026idu [ATLAS26drr]
RA, DEC:23:33:58.172, -45:12:13.38
(353.492382, -45.203717)
Redshift:
Type:
See object 2026idu [ATLAS26drr]
Here we report the ATLAS discovery of the transient ATLAS26drr (AT2026idu) in galaxy IC 5328B at magnitude m_o = 16.85 +/- 0.10. At a distance of 40 Mpc, the transient was discovered on MJD = 61133…
AstroNote 2026-96
Type: Object/s-Discovery/Classification
Released: 2026-04-03 18:03:11
Spectroscopic classification of SN 2025xtq as an unusual Type Ia-CSM SN with a > 200-day long-lived plateau
Kaustav K. Das (Caltech), K-Ryan Hinds (Caltech), Daniel A. Perley (LJMU), Jesper Sollerman, Avinash Singh (Stockholm U…
Source Group: ZTF
Keywords: Transient, Supernova
Related Objects:
2025xtq [ZTF25abrpnbo]
RA, DEC:19:55:42.495, +52:48:24.17
(298.927062, 52.806714)
Redshift:0.054
Type:SN Ia-CSM
See object 2025xtq [ZTF25abrpnbo]
We report the spectroscopic classification and unusual evolution of SN 2025xtq/ZTF25abrpnbo as an Ia-CSM supernova. The transient has remained near 18.5 mag for over 200 days. Early spectrum is consi…
AstroNote 2026-95
Type: Object/s-Discovery/Classification
Released: 2026-04-03 10:39:47
ATLAS26dre (AT2026idh): discovery of a candidate SN in ESO 126- G 010 (28 Mpc)
K. W. Smith (Oxford/QUB), D. R. Young, M. Nicholl, M. Fulton, M. McCollum, T. Moore, J. Weston, X. Sheng, A. Aamer, C. …
Source Group: ATLAS
Keywords: Supernova
Related Objects:
2026idh [ATLAS26dre]
RA, DEC:09:22:22.962, -61:02:44.11
(140.595674, -61.045585)
Redshift:0.007178
Type:SN Ic
See object 2026idh [ATLAS26dre]
Here we report the ATLAS discovery of the transient ATLAS26dre (AT2026idh) in galaxy ESO 126- G 010 at magnitude m_o = 18.10 +/- 0.15. At a distance of 28 Mpc (redshift independent, from NED), the t…
AstroNote 2026-94
Type: Object/s-Discovery/Classification
Released: 2026-04-03 06:41:07
ATLAS26drb (AT2026icy): discovery of a candidate SN in ESO 139- G 025 (69 Mpc)
K. W. Smith (Oxford/QUB), D. R. Young, M. Nicholl, M. Fulton, M. McCollum, T. Moore, J. Weston, X. Sheng, A. Aamer, C. …
Source Group: ATLAS
Keywords: Supernova
Related Objects:
2026icy [ATLAS26drb]
RA, DEC:17:46:09.818, -61:19:51.60
(266.540907, -61.331000)
Redshift:
Type:
See object 2026icy [ATLAS26drb]
Here we report the ATLAS discovery of the transient ATLAS26drb (AT2026icy) in galaxy ESO 139- G 025 at magnitude m_o = 18.33 +/- 0.15. At a distance of 69 Mpc, the transient was discovered on MJD = …
AstroNote 2026-92
Type: Object/s-Discovery/Classification
Released: 2026-03-31 21:25:46
Spectroscopic classification of ten supernovae, including two from Rubin
Peter Blanchard (Harvard/CfA), Harsh Kumar (Harvard/CfA), Edo Berger (Harvard/CfA), Sebastian Gomez (UT Austin), Daichi…
Source Group: FLEET
Related Objects:
2025ahkl [LSST-P-DO-170028526873870371]
RA, DEC:12:27:13.976, +08:28:56.69
(186.808233, 8.482413)
Redshift:0.177
Type:SN IIn
See object 2025ahkl [LSST-P-DO-170028526873870371]
,
2026fgt [LSST-AP-DO-170028526486945858]
RA, DEC:12:24:45.331, +06:35:20.85
(186.188879, 6.589125)
Redshift:0.282
Type:SN Ia
See object 2026fgt [LSST-AP-DO-170028526486945858]
,
2026mh [ZTF26aaadhkv]
RA, DEC:10:02:22.358, -13:02:20.70
(150.593159, -13.039083)
Redshift:0.222
Type:SLSN-II
See object 2026mh [ZTF26aaadhkv]
,
2026xg [ZTF26aaavhvm]
RA, DEC:12:51:04.978, +08:12:32.44
(192.770740, 8.209012)
Redshift:0.055
Type:SN IIb
See object 2026xg [ZTF26aaavhvm]
,
2026efu [ZTF26aahjzfk]
RA, DEC:15:27:56.125, +10:16:49.80
(231.983855, 10.280500)
Redshift:0.124
Type:SN Ia
See object 2026efu [ZTF26aahjzfk]
,
2026etm [ZTF26aakroun]
RA, DEC:13:37:45.224, -21:25:51.25
(204.438435, -21.430904)
Redshift:0.168
Type:SN IIn
See object 2026etm [ZTF26aakroun]
,
2026diq [ZTF26aaggjnw]
RA, DEC:14:57:49.164, -05:48:51.02
(224.454851, -5.814172)
Redshift:0.169
Type:SN IIn
See object 2026diq [ZTF26aaggjnw]
,
2026cah [ZTF26aaclren]
RA, DEC:03:49:18.136, +25:19:58.76
(57.325565, 25.332988)
Redshift:0.146
Type:SN Ia
See object 2026cah [ZTF26aaclren]
,
2026awe [ZTF26aacsapb]
RA, DEC:10:54:24.931, -12:19:30.25
(163.603879, -12.325069)
Redshift:0.079
Type:SN Ia
See object 2026awe [ZTF26aacsapb]
,
2026aex [ZTF26aabkeee]
RA, DEC:11:41:58.173, +11:53:13.31
(175.492389, 11.887031)
Redshift:0.129
Type:SN IIn
See object 2026aex [ZTF26aabkeee]
We report classifications of 4 SNe IIn, 4 SNe Ia, 1 SN IIb, and 1 SLSN-II.
AstroNote 2026-91
Type: Object/s-Discovery/Classification
Released: 2026-03-31 13:16:56
ATLAS26dpl (AT2026hvw): discovery of a candidate SN in ESO 422-G020 (85 Mpc)
D. R. Young (QUB), K. W. Smith (Oxford/QUB), M. Nicholl, M. Fulton, M. McCollum, T. Moore, J. Weston, X. Sheng, A. Aame…
Source Group: ATLAS
Keywords: Supernova
Related Objects:
2026hvw [ATLAS26dpl]
RA, DEC:05:00:45.480, -29:51:07.11
(75.189502, -29.851975)
Redshift:
Type:
See object 2026hvw [ATLAS26dpl]
Here we report the ATLAS discovery of the transient ATLAS26dpl (AT2026hvw) in the galaxy ESO 422-G020, with magnitude m_o = 18.27 +/- 0.13. At a distance of 85 Mpc, the transient was discovered on M…
AstroNote 2026-88
Type: Object/s-Discovery/Classification
Released: 2026-03-27 20:20:17
SLSN and TDE candidates from NEEDLE on Lasair
X. Sheng, M. Nicholl, K. W. Smith, C. R. Angus, M. Fulton, T. Moore, J. Weston, D. R. Young, D. Magill, A. J. Smith (QU…
Source Group: OxQUB
Keywords: Time-domain, Transient, Supernova, TDE
Related Objects:
2026fuy [ZTF26aamiuow]
RA, DEC:15:16:15.467, +03:38:31.14
(229.064444, 3.641983)
Redshift:
Type:
See object 2026fuy [ZTF26aamiuow]
,
2026fhh [ZTF26aakjynh]
RA, DEC:13:10:15.059, +10:54:21.21
(197.562745, 10.905892)
Redshift:
Type:
See object 2026fhh [ZTF26aakjynh]
,
2026gzg [ZTF26aanrjzf]
RA, DEC:12:52:03.993, -16:35:18.65
(193.016636, -16.588513)
Redshift:
Type:
See object 2026gzg [ZTF26aanrjzf]
,
ZTF26aankgqy
RA, DEC:00:00:00.000,
(0.000000, 0.000000)
Redshift:
Type:
ZTF26aankgqy
,
2026fub [ZTF26aalrvrt]
RA, DEC:12:04:21.097, -12:22:15.77
(181.087902, -12.371047)
Redshift:
Type:
See object 2026fub [ZTF26aalrvrt]
,
2026djv [ZTF26aamunwa]
RA, DEC:14:54:49.849, -08:17:41.37
(223.707702, -8.294826)
Redshift:
Type:
See object 2026djv [ZTF26aamunwa]
,
2026ffn
RA, DEC:07:23:22.946, -02:15:08.50
(110.845610, -2.252362)
Redshift:
Type:
See object 2026ffn
,
2026etm [ZTF26aakroun]
RA, DEC:13:37:45.224, -21:25:51.25
(204.438435, -21.430904)
Redshift:0.168
Type:SN IIn
See object 2026etm [ZTF26aakroun]
We report 6 SLSN, 1 TDE and 1 unclear candidates from the ZTF public alert stream with latest magnitude under 20.0, identified by the NEEDLE2.0 classifier running on the Lasair alert broker. We encou…
AstroNote 2026-87
Type: Object/s-Discovery/Classification
Released: 2026-03-27 01:13:02
Identification of the redshift of EP Transient EP260324a
Jiazheng Zhu (USTC), Ning Jiang (USTC), Linna Xu (USTC), Yibo Wang (USTC), Tinggui Wang (USTC), Mingxin Wu (USTC), Shi…
Source Group: USTC-TDE
Related Objects:
2026hir
RA, DEC:08:44:12.377, +82:01:11.36
(131.051569, 82.019822)
Redshift:
Type:
See object 2026hir
AstroNote 2026-85
Type: Object/s-Discovery/Classification
Released: 2026-03-26 04:15:39
ZTF classification of ZTF26aalndlm / AT2026hdo and ZTF26aahjwyr / AT2026dta as tidal disruption events
Erica Hammerstein (UC Berkeley), Ryan Chornock (UC Berkeley), and R. Stein (JSI), on behalf of the ZTF AGN/TDE working …
Source Group: ZTF
Keywords: Transient, TDE
Related Objects:
2026hdo [ZTF26aalndlm]
RA, DEC:10:31:52.637, +73:58:06.07
(157.969320, 73.968352)
Redshift:0.1085
Type:TDE
See object 2026hdo [ZTF26aalndlm]
,
2026dta [ZTF26aahjwyr]
RA, DEC:14:38:04.888, +43:51:40.53
(219.520366, 43.861259)
Redshift:0.223
Type:TDE-H-He
See object 2026dta [ZTF26aahjwyr]
We report the classification of optical transients ZTF26aalndlm / AT2026hdo and ZTF26aahjwyr / AT2026dta as tidal disruption events (TDEs). The sources were selected by the tdescore ML classifier (St…
AstroNote 2026-84
Type: Object/s-Discovery/Classification
Released: 2026-03-26 00:31:45
Classification of LSST Transient 2026euq (LSST-P-DO-313963406691402058)
Yize Dong (Harvard/CfA), V. Ashley Villar (Harvard/CfA), Danielle Frostig(Harvard/CfA), Anya Nugent (Harvard/CfA), S. K…
Source Group: VHU-TDA
Keywords: Spectroscopy, Transient, Supernova, Optical
Related Objects:
2026euq [LSST-P-DO-313963406691402058]
RA, DEC:09:55:20.981, +03:12:45.99
(148.837421, 3.212775)
Redshift:0.26
Type:SN Ib
See object 2026euq [LSST-P-DO-313963406691402058]
We report the classification of 2026euq (LSST-P-DO-313963406691402058) as a Type Ib supernova at z ~ 0.26.
AstroNote 2026-83
Type: Object/s-Discovery/Classification
Released: 2026-03-25 15:45:26
ATLAS26dgp (AT2026hct): discovery of a candidate SN in ESO 485-G012 (65 Mpc)
A. J. Smith (QUB), K. W. Smith (Oxford/QUB), D. R. Young, M. Nicholl, M. Fulton, M. McCollum, T. Moore, J. Weston, X. S…
Source Group: ATLAS
Keywords: Supernova
Related Objects:
2026hct [ATLAS26dgp]
RA, DEC:04:48:04.523, -25:13:50.64
(72.018844, -25.230732)
Redshift:
Type:
See object 2026hct [ATLAS26dgp]
Here we report the ATLAS discovery of the transient ATLAS26dgp (AT2026hct) in galaxy ESO 485- G 012 at magnitude m_o = 18.87 +/- 0.15. At a distance of 65 Mpc, the transient was discovered on MJD = …
AstroNote 2026-82
Type: Object/s-Discovery/Classification
Released: 2026-03-23 15:42:04
ATLAS26dex (AT2026gzx): discovery of a nearby rising transient in NGC 3955 (21 Mpc)
S. Srivastav (Oxford), K. W. Smith (Oxford/QUB), D. R. Young, M. Nicholl, M. Fulton, M. McCollum, T. Moore, J. Weston, …
Source Group: ATLAS
Keywords: Supernova
Related Objects:
2026gzx [ATLAS26dex]
RA, DEC:11:53:56.927, -23:09:45.52
(178.487195, -23.162646)
Redshift:0.00509
Type:SN Ic
See object 2026gzx [ATLAS26dex]
We report the ATLAS discovery of the transient AT2026gzx in the nearby galaxy NGC 3955 (21 Mpc) on MJD 61122.23 (2026-03-23.23). The discovery magnitude is m_c = 16.80 +/- 0.04, implying an absolute …
AstroNote 2026-81
Type: Object/s-Discovery/Classification
Released: 2026-03-20 18:23:58
DESI multi-object spectroscopic observations of hundreds of Rubin alerts
Xander J. Hall (CMU), John Banovez (LBNL), Antonella Palmese (CMU), Stephen Bailey (LBNL), Segev BenZvi (U Rochester), …
Source Group: DESI
Keywords: Surveys, Supernova
Related Objects:
2025aluu [313853517432881258]
RA, DEC:10:05:16.241, +02:23:42.78
(151.317670, 2.395216)
Redshift:0.0934
Type:SN II
See object 2025aluu [313853517432881258]
,
2026bbl [LSST-P-DO-313853517428162578]
RA, DEC:10:02:11.842, +02:37:36.80
(150.549343, 2.626888)
Redshift:0.1139
Type:SN II
See object 2026bbl [LSST-P-DO-313853517428162578]
,
2026fbm [LSST-AP-DO-170094456357257301]
RA, DEC:10:00:07.824, +03:01:27.07
(150.032600, 3.024186)
Redshift:0.176
Type:SN Ia
See object 2026fbm [LSST-AP-DO-170094456357257301]
,
2026ezw [LSST-AP-DO-170094456400773135]
RA, DEC:09:58:32.565, +01:16:09.64
(149.635687, 1.269344)
Redshift:0.131
Type:SN Ia
See object 2026ezw [LSST-AP-DO-170094456400773135]
,
2025alrj [LSST-P-DO-313998569623257167]
RA, DEC:09:58:24.467, +00:43:41.12
(149.601947, 0.728089)
Redshift:0.065
Type:SN II
See object 2025alrj [LSST-P-DO-313998569623257167]
We report the first spectroscopic follow-up of Rubin alerts with the Dark Energy Spectroscopic Instrument (DESI). During our initial campaign, we targeted 345 alerts from the Rubin Legacy Survey of S…
AstroNote 2026-79
Type: Object/s-Discovery/Classification
Released: 2026-03-20 12:51:16
SLSN and TDE candidates from NEEDLE on Lasair
X. Sheng, M. Nicholl, K. W. Smith, C. R. Angus, M. Fulton, T. Moore, J. Weston, D. R. Young, D. Magill, A. J. Smith (QU…
Source Group: OxQUB
Keywords: Time-domain, Transient, Supernova, TDE
Related Objects:
2026etm [ZTF26aakroun]
RA, DEC:13:37:45.224, -21:25:51.25
(204.438435, -21.430904)
Redshift:0.168
Type:SN IIn
See object 2026etm [ZTF26aakroun]
,
2026cyb [ZTF26aahtcvh]
RA, DEC:14:09:50.980, +01:45:05.16
(212.462417, 1.751433)
Redshift:0.0146
Type:SN II
See object 2026cyb [ZTF26aahtcvh]
,
2026duw [ZTF26aahjdpb]
RA, DEC:11:39:00.202, -05:42:54.18
(174.750841, -5.715050)
Redshift:0.265
Type:SLSN-I
See object 2026duw [ZTF26aahjdpb]
We report 2 SLSN and 1 TDE candidates from the ZTF public alert stream, identified by the NEEDLE classifier running on the Lasair alert broker. We encourage spectroscopic classification of these even…
AstroNote 2026-77
Type: Object/s-Discovery/Classification
Released: 2026-03-19 14:29:21
ATLAS26dch (AT2026fzb): discovery of a rapidly rising transient in SGC0655.2-2651 (31 Mpc)
S. Srivastav, K. W. Smith (Oxford/QUB), D. R. Young, M. Nicholl, M. Fulton, M. McCollum, T. Moore, J. Weston, X. Sheng,…
Source Group: ATLAS
Keywords: Supernova
Related Objects:
2026fzb [ATLAS26dch]
RA, DEC:06:57:16.369, -26:54:37.29
(104.318202, -26.910359)
Redshift:0.014
Type:SN II
See object 2026fzb [ATLAS26dch]
We report the ATLAS discovery of the transient AT2026fzb at a magnitude of m_o = 17.50 +/- 0.06 on MJD 61117.81 (2026-03-18.81). The likely host galaxy is at a redshift of z = 0.0071, implying an abs…
AstroNote 2026-75
Type: Object/s-Discovery/Classification
Released: 2026-03-18 12:02:45
AT2026fvx: discovery of a young SN candidate in NGC 4205 (17.5 Mpc)
R. Konno, E. A. Zimmerman, E. O. Ofek, A. Horowicz, A. Gal-Yam, S. Ben-Ami, O. Yaron, D. Polishook, A. Blumenzweig, E. …
Source Group: LAST
Keywords: Surveys, Transient, Supernova
Related Objects:
SN 2026fvx
RA, DEC:12:14:58.133, +63:47:16.41
(183.742223, 63.787891)
Redshift:0.004846
Type:SN Ia
See object SN 2026fvx
We report the discovery of AT2026fvx, discovered by LAST at 19.64 +/- 0.09 mag (AB), coincident with NGC 4205 (17.5 Mpc).
AstroNote 2026-74
Type: Object/s-Discovery/Classification
Released: 2026-03-16 18:50:16
ATLAS26cuz (AT2026fhw): discovery of a candidate SN in NGC 1686 (79 Mpc)
L. Eastman (Oxford), K. W. Smith (Oxford/QUB), D. R. Young, M. Nicholl, M. Fulton, M. McCollum, T. Moore, J. Weston, X…
Source Group: ATLAS
Keywords: Supernova
Related Objects:
2026fhw [ATLAS26cuz]
RA, DEC:04:52:54.589, -15:20:53.40
(73.227454, -15.348167)
Redshift:
Type:
See object 2026fhw [ATLAS26cuz]
Here we report the ATLAS discovery of the transient ATLAS26cuz (AT2026fhw) in galaxy NGC 1686 at magnitude m_c = 18.16 +/- 0.14. At a distance of 79 Mpc, the transient was discovered on MJD = 61108…
AstroNote 2026-73
Type: Object/s-Discovery/Classification
Released: 2026-03-16 18:42:11
ATLAS26cwl (AT2026fjy): discovery of a candidate SN in NGC 5230 (100 Mpc)
L. Eastman (Oxford), K. W. Smith (Oxford/QUB), D. R. Young, M. Nicholl, M. Fulton, M. McCollum, T. Moore, J. Weston, X…
Source Group: ATLAS
Keywords: Supernova
Related Objects:
2026fjy [ATLAS26cwl]
RA, DEC:13:35:32.797, +13:40:57.53
(203.886654, 13.682647)
Redshift:0.0229
Type:SN IIP
See object 2026fjy [ATLAS26cwl]
Here we report the ATLAS discovery of the transient ATLAS26cwl (AT2026fjy) in galaxy NGC 5230 at magnitude m_w = 19.74 +/- 0.15. At a distance of 100 Mpc, the transient was discovered on MJD = 61109…
AstroNote 2026-72
Type: Object/s-Discovery/Classification
Released: 2026-03-16 13:11:41
SN 2026ejf / LSST-P-DO-313831458352922664: Spectroscopic classification as a hydrogen-poor superluminous supernova (SLSN-I)
V. Ashley Villar (Harvard/CfA), Kyle W. Davis (UCSC), Yize Dong (Harvard), Ryan J. Foley (UCSC )
Source Group: VHU-TDA
Keywords: Spectroscopy, Transient, Supernova, Optical
Related Objects:
2026ejf [313831458352922664]
RA, DEC:04:04:37.779, -48:30:07.25
(61.157411, -48.502013)
Redshift:0.96
Type:SLSN-I
See object 2026ejf [313831458352922664]
We report the spectroscopic classification of SN 2026ejf as a hydrogen-poor superluminous supernova (SLSN-I) at z ~ 1.
AstroNote 2026-70
Type: Object/s-Discovery/Classification
Released: 2026-03-14 23:08:23
ATLAS26cyf (AT2026fns): discovery of a fast fading transient in a faint blue host
K. W. Smith, L. Eastman, S.J. Smartt (Oxford/QUB), D. R. Young, M. Nicholl, M. Fulton, M. McCollum, T. Moore, J. Weston…
Source Group: ATLAS
Keywords: Supernova
Related Objects:
2026fns [ATLAS26cyf]
RA, DEC:12:31:05.742, -31:40:57.82
(187.773925, -31.682726)
Redshift:0.03
Type:SN II
See object 2026fns [ATLAS26cyf]
Here we report the ATLAS discovery of the transient ATLAS26cyf (AT2026fns) in a faint blue, diffuse host detected in the Legacy Survey at magnitude o = 18.5 +/- 0.2. The transient was discovered on…
AstroNote 2026-69
Type: Object/s-Discovery/Classification
Released: 2026-03-13 13:57:55
SLSN and TDE candidates from NEEDLE on Lasair
X. Sheng, M. Nicholl, K. W. Smith, C. R. Angus, M. Fulton, T. Moore, J. Weston, D. R. Young, D. Magill, A. J. Smith (QU…
Source Group: OxQUB
Keywords: Time-domain, Transient, Supernova, TDE
Related Objects:
2026erg [ZTF26aahjyxl]
RA, DEC:14:28:37.821, -00:31:51.97
(217.157589, -0.531102)
Redshift:0.14
Type:SN Ia
See object 2026erg [ZTF26aahjyxl]
,
2026bze [ZTF26aaeqoxr]
RA, DEC:04:00:26.209, -08:49:00.23
(60.109204, -8.816730)
Redshift:
Type:
See object 2026bze [ZTF26aaeqoxr]
,
2026ckn [ZTF26aaffooq]
RA, DEC:10:52:08.829, -11:16:53.44
(163.036786, -11.281512)
Redshift:
Type:
See object 2026ckn [ZTF26aaffooq]
,
2026ewx [ZTF26aahihjs]
RA, DEC:10:11:30.134, +08:59:38.53
(152.875558, 8.994036)
Redshift:0.08956
Type:SN Ia
See object 2026ewx [ZTF26aahihjs]
Related Notes:
2026-32
2026-692026-02-13 15:00:39
Title: TDE candidates from POTICA
Authors: E. Concepcion, S. Bhattacharyya, A. Gomboc, T. Petrushevska…
We report 2 SLSN, 1 TDE and 1 uncertain candidates from the ZTF public alert stream, identified by the NEEDLE classifier running on the Lasair alert broker. We encourage spectroscopic classification …
AstroNote 2026-68
Type: Object/s-Discovery/Classification
Released: 2026-03-12 18:28:18
Spectroscopic Observations and Classifications of Rubin/LSST Transients with Keck/DEIMOS
Wynn Jacobson-Galán, K-Ryan Hinds, Sam Rose, Kaustav K. Das, Mansi Kasliwal, Theophile Jegou du Laz, Thomas Culino, Chr…
Source Group: ZTF
Related Objects:
2025alrj [LSST-P-DO-313998569623257167]
RA, DEC:09:58:24.467, +00:43:41.12
(149.601947, 0.728089)
Redshift:0.065
Type:SN II
See object 2025alrj [LSST-P-DO-313998569623257167]
,
2026enz [LSST-P-DO-170050505205612651]
RA, DEC:12:29:44.352, +08:00:29.07
(187.434800, 8.008075)
Redshift:0.00327
Type:
See object 2026enz [LSST-P-DO-170050505205612651]
,
2026fgq [LSST-AP-DO-170028526579744791]
RA, DEC:12:20:10.542, +07:47:55.89
(185.043925, 7.798859)
Redshift:
Type:SN I
See object 2026fgq [LSST-AP-DO-170028526579744791]
,
2025altn
RA, DEC:10:07:04.516, +02:32:49.00
(151.768817, 2.546944)
Redshift:1.056
Type:SLSN-I
See object 2025altn
,
2026ewl [LSST-AP-DO-170028526712914004]
RA, DEC:12:22:11.477, +07:44:51.00
(185.547821, 7.747500)
Redshift:0.1355
Type:SN Ia
See object 2026ewl [LSST-AP-DO-170028526712914004]
,
2026fca [LSST-AP-DO-170028526740701203]
RA, DEC:12:27:38.427, +08:00:53.45
(186.910112, 8.014847)
Redshift:0.06329
Type:SN II
See object 2026fca [LSST-AP-DO-170028526740701203]
,
2026fkf
RA, DEC:12:28:20.196, +08:21:58.10
(187.084150, 8.366138)
Redshift:0.12
Type:SN II
See object 2026fkf
We report Keck/DEIMOS spectroscopic classifications and follow-up observations of transients detected in the Rubin/LSST alert stream.
AstroNote 2026-67
Type: Object/s-Discovery/Classification
Released: 2026-03-12 14:17:39
AT 2026ekf: TDE/SLSN/glSNIa candidate from the Rubin LSST alerts stream
E. Umuzigazuba, E. Concepcion, S. Bhattacharyya, A. Gomboc, T. Petrushevska, O. Razim, G. Contardo (University of Nova…
Keywords: Supernova, Lensing, TDE
Related Objects:
2026ekf [170032917163016282]
RA, DEC:12:30:49.857, +08:16:26.15
(187.707737, 8.273932)
Redshift:0.15
Type:SN Ia
See object 2026ekf [170032917163016282]
Related Notes:
2026-50
2026-672026-02-25 21:19:46
Title: Identification of Rubin Supernova Candidates with Superphot+
Authors: Kaylee de Soto (Harvard/CfA), Yize Dong (Harvard/CfA), Anya…
Source Group: VHU-TDA
We report a TDE/SLSN/glSNIa candidate from the Rubin alerts stream. We encourage classification and follow-up of this object.
AstroNote 2026-66
Type: Object/s-Discovery/Classification
Released: 2026-03-12 12:11:03
ATLAS26cwi (AT2026fjc): discovery of a rising transient in NGC 4914 (67 Mpc)
S. Srivastav (Oxford), K. W. Smith (Oxford/QUB), D. R. Young, M. Nicholl, M. Fulton, M. McCollum, T. Moore, J. Weston, …
Source Group: ATLAS
Keywords: Supernova
Related Objects:
2026fjc [ATLAS26cwi]
RA, DEC:13:00:43.060, +37:18:36.19
(195.179418, 37.310053)
Redshift:0.015287
Type:SN Ia
See object 2026fjc [ATLAS26cwi]
We report the ATLAS discovery of the transient ATLAS26cwi (AT2026fjc) in galaxy NGC 4914 (z = 0.0155). The transient was discovered on MJD 61111.08 == 2026-03-12.08 at m_w = 18.48 +/- 0.09, correspon…
AstroNote 2026-64
Type: Object/s-Discovery/Classification
Released: 2026-03-11 09:51:50
ATLAS26cru (AT2026fdt): discovery of a candidate SN in 2MASX J17342386-6354203 (66 Mpc)
L. Eastman (Oxford), K. W. Smith (Oxford/QUB), D. R. Young, M. Nicholl, M. Fulton, M. McCollum, T. Moore, J. Weston, X…
Source Group: ATLAS
Keywords: Supernova
Related Objects:
2026fdt [ATLAS26cru]
RA, DEC:17:34:24.707, -63:54:15.27
(263.602946, -63.904242)
Redshift:0.0155
Type:SN IIP
See object 2026fdt [ATLAS26cru]
Here we report the ATLAS discovery of the transient ATLAS26cru (AT2026fdt) in galaxy 2MASX J17342386-6354203 at magnitude m_o = 18.05 +/- 0.17. At a distance of 66 Mpc, the transient was discovered …
AstroNote 2026-63
Type: Object/s-Discovery/Classification
Released: 2026-03-10 15:45:40
ATLAS26crq (AT2026fdp): discovery of a candidate SN in WKK 5923 (64 Mpc)
L. Eastman (Oxford), K. W. Smith (Oxford/QUB), D. R. Young, M. Nicholl, M. Fulton, M. McCollum, T. Moore, J. Weston, X…
Source Group: ATLAS
Keywords: Supernova
Related Objects:
2026fdp [ATLAS26crq]
RA, DEC:16:07:54.304, -59:13:39.82
(241.976265, -59.227728)
Redshift:
Type:
See object 2026fdp [ATLAS26crq]
Here we report the ATLAS discovery of the transient ATLAS26crq (AT2026fdp) in galaxy WKK 5923 at magnitude m_o = 17.93 +/- 0.15. At a distance of 64 Mpc, the transient was discovered on MJD = 61106…
AstroNote 2026-62
Type: Object/s-Discovery/Classification
Released: 2026-03-10 12:00:13
Spectroscopic classification of SN 2026eqf as a Type IIn SN with Magellan
Ping Chen (ZJU), Peixin Zhu (CfA), Ting-Wan Chen, A. Aryan (both NCU), H. F. Stevance (Oxford), S. J. Brennan (MPE)
Source Group: Kinder
Related Objects:
2026eqf [LSST-AP-DO-313994139532263447]
RA, DEC:03:33:00.327, -27:51:39.74
(53.251362, -27.861039)
Redshift:0.147
Type:SN IIn
See object 2026eqf [LSST-AP-DO-313994139532263447]
Related Notes:
2026-55
2026-622026-03-04 11:36:48
Title: Potential Pre-Peak Luminous Supernova Identified in Rubin Data
Authors: S. J. Brennan (MPE), H. F. Stevance (Oxford), on behalf of …
Source Group: PRESTO
We obtained a spectrum of SN 2026eqf with Magellan and classified it as a Type IIn SN. This confirms the nature of the luminous Rubin transient reported in AstroNote 2026-55.
AstroNote 2026-61
Type: Object/s-Discovery/Classification
Released: 2026-03-09 13:27:21
Transient Classification with Gemini
A. Cikota (NOIRLab/Gemini South), P. Pessi (NCBJ), V.Firpo (NOIRLab/Gemini South), L. Magill (NOIRLab/Gemini South), K…
Related Objects:
2026dyo
RA, DEC:11:45:48.450, +05:20:10.30
(176.451875, 5.336194)
Redshift:0.093
Type:SN Ia
See object 2026dyo
We report spectroscopic observations of 1 transient
AstroNote 2026-59
Type: Object/s-Discovery/Classification
Released: 2026-03-07 16:26:59
Transient Classification with Gemini
P. Pessi (NCBJ), A. Cikota (NOIRLab/Gemini South), V.Firpo (NOIRLab/Gemini South), L. Magill (NOIRLab/Gemini South), K…
Related Objects:
2025ahby
RA, DEC:13:44:36.132, -29:55:52.58
(206.150548, -29.931274)
Redshift:0.038
Type:SN II
See object 2025ahby
,
2026exe
RA, DEC:10:45:04.767, +00:06:13.14
(161.269864, 0.103649)
Redshift:0.039
Type:SN Ia
See object 2026exe
We report spectroscopic observations of 2 transients
AstroNote 2026-58
Type: Object/s-Discovery/Classification
Released: 2026-03-07 00:47:32
ATLAS26cqd (AT2026eyt): discovery of a candidate SN in ESO 459- G 006 (73 Mpc)
K. W. Smith (Oxford/QUB), D. R. Young, M. Nicholl, M. Fulton, M. McCollum, T. Moore, J. Weston, X. Sheng, A. Aamer, C. …
Source Group: ATLAS
Keywords: Supernova
Related Objects:
2026eyt [ATLAS26cqd]
RA, DEC:19:12:09.702, -32:07:25.41
(288.040423, -32.123726)
Redshift:0.0189
Type:SN Ia
See object 2026eyt [ATLAS26cqd]
Here we report the ATLAS discovery of the transient ATLAS26cqd (AT2026eyt) in galaxy ESO 459- G 006 at magnitude m_o = 16.71 +/- 0.04. At a distance of 73 Mpc, the transient was discovered on MJD = 6…
AstroNote 2026-57
Type: Object/s-Discovery/Classification
Released: 2026-03-05 21:21:05
Transient Classification with Gemini
A. Cikota (NOIRLab/Gemini South), P. Pessi (NCBJ), P. Candia (NOIRLab/Gemini South), S. Cikota (CAHA), S. Panda (NOIRLa…
Related Objects:
2026dlg
RA, DEC:06:33:50.940, -41:46:24.30
(98.462250, -41.773417)
Redshift:
Type:
See object 2026dlg
,
2026epx
RA, DEC:11:40:18.830, -39:45:10.20
(175.078458, -39.752833)
Redshift:
Type:CV
See object 2026epx
,
2026erw
RA, DEC:07:36:59.773, +11:13:18.64
(114.249055, 11.221844)
Redshift:
Type:CV
See object 2026erw
,
2026esg
RA, DEC:13:34:51.051, -44:32:37.94
(203.712714, -44.543871)
Redshift:
Type:CV
See object 2026esg
,
2026evh
RA, DEC:03:31:20.915, -35:29:25.05
(52.837145, -35.490290)
Redshift:0.056
Type:SN Ia
See object 2026evh
,
2026egu
RA, DEC:08:38:01.077, +09:18:24.62
(129.504487, 9.306840)
Redshift:0.06
Type:SN Ia
See object 2026egu
,
2022jla
RA, DEC:07:40:18.676, +02:06:46.99
(115.077817, 2.113053)
Redshift:
Type:
See object 2022jla
We report spectroscopic observations of 7 transients
AstroNote 2026-56
Type: Object/s-Discovery/Classification
Released: 2026-03-05 20:37:25
ATLAS26cph (AT2026ewd): discovery of a candidate SN in UGC 11058 (65 Mpc)
K. W. Smith (Oxford/QUB), D. R. Young, M. Nicholl, M. Fulton, M. McCollum, T. Moore, J. Weston, X. Sheng, A. Aamer, C. …
Source Group: ATLAS
Keywords: Supernova
Related Objects:
2026ewd [ATLAS26cph]
RA, DEC:17:56:52.677, +32:37:59.41
(269.219489, 32.633170)
Redshift:0.015854
Type:SN Ia
See object 2026ewd [ATLAS26cph]
Here we report the ATLAS discovery of the transient ATLAS26cph (AT2026ewd) in galaxy UGC 11058 at magnitude m_o = 17.35 +/- 0.08. At a distance of 65 Mpc, the transient was discovered on MJD = 61104…
AstroNote 2026-55
Type: Object/s-Discovery/Classification
Released: 2026-03-04 12:08:04
Potential Pre-Peak Luminous Supernova Identified in Rubin Data
S. J. Brennan (MPE), H. F. Stevance (Oxford), on behalf of the PRESTO group
Source Group: PRESTO
Related Objects:
2026eqf [LSST-AP-DO-313994139532263447]
RA, DEC:03:33:00.327, -27:51:39.74
(53.251362, -27.861039)
Redshift:0.147
Type:SN IIn
See object 2026eqf [LSST-AP-DO-313994139532263447]
We report the identification of the slowly rising transient AT2026eqf at a redshift of z = 0.146
AstroNote 2026-54
Type: Object/s-Discovery/Classification
Released: 2026-03-01 03:57:23
SLSN and TDE candidates from NEEDLE on Lasair
C. R. Angus, X. Sheng, M. Nicholl, K. W. Smith, M. Fulton, T. Moore, J. Weston, D. R. Young, D. Magill, A. J. Smith (QU…
Source Group: OxQUB
Keywords: Time-domain, Transient, Supernova, TDE
Related Objects:
2026dee [ZTF26aagpzxk]
RA, DEC:12:05:09.349, -15:58:10.47
(181.288954, -15.969576)
Redshift:
Type:
See object 2026dee [ZTF26aagpzxk]
,
2026djx [ZTF26aafodbz]
RA, DEC:07:32:30.228, +03:03:14.70
(113.125950, 3.054082)
Redshift:
Type:
See object 2026djx [ZTF26aafodbz]
,
2026ckn [ZTF26aaffooq]
RA, DEC:10:52:08.829, -11:16:53.44
(163.036786, -11.281512)
Redshift:
Type:
See object 2026ckn [ZTF26aaffooq]
,
2026ebd [ZTF26aahjgvu]
RA, DEC:13:05:20.462, +12:10:24.10
(196.335260, 12.173361)
Redshift:0.0942
Type:SN Ia
See object 2026ebd [ZTF26aahjgvu]
We report 2 SLSN, 1 TDE and 1 uncertain candidates from the ZTF public alert stream, identified by the NEEDLE classifier running on the Lasair alert broker. We encourage spectroscopic classification …
AstroNote 2026-50
Type: Object/s-Discovery/Classification
Released: 2026-02-26 01:15:42
Identification of Rubin Supernova Candidates with Superphot+
Kaylee de Soto (Harvard/CfA), Yize Dong (Harvard/CfA), Anya Nugent (Harvard/CfA), S. Karthik Yadavalli (Harvard/CfA), V…
Source Group: VHU-TDA
Keywords: Transient, Supernova, Optical
Related Objects:
2025alto
RA, DEC:10:00:56.454, +03:13:32.65
(150.235225, 3.225736)
Redshift:
Type:
See object 2025alto
,
2025altt
RA, DEC:04:16:51.717, -46:34:29.09
(64.215486, -46.574747)
Redshift:
Type:
See object 2025altt
,
2026dd
RA, DEC:04:17:08.193, -46:31:45.68
(64.284139, -46.529355)
Redshift:
Type:
See object 2026dd
,
2026eiy
RA, DEC:03:49:41.167, -48:16:09.46
(57.421528, -48.269294)
Redshift:
Type:
See object 2026eiy
,
2026ejh
RA, DEC:03:49:00.055, -49:21:12.37
(57.250227, -49.353435)
Redshift:
Type:
See object 2026ejh
,
2026ekf
RA, DEC:12:30:49.857, +08:16:26.15
(187.707737, 8.273932)
Redshift:0.15
Type:SN Ia
See object 2026ekf
,
2026elk
RA, DEC:03:59:32.690, -50:19:31.11
(59.886210, -50.325309)
Redshift:
Type:
See object 2026elk
,
2026ell
RA, DEC:04:09:49.358, -46:19:33.50
(62.455657, -46.325971)
Redshift:
Type:
See object 2026ell
,
2026elm
RA, DEC:10:03:03.622, +02:37:32.77
(150.765091, 2.625769)
Redshift:
Type:
See object 2026elm
,
2026eln
RA, DEC:04:20:28.469, -47:44:51.94
(65.118621, -47.747760)
Redshift:
Type:
See object 2026eln
,
2026elo
RA, DEC:04:04:01.969, -48:32:58.08
(61.008203, -48.549466)
Redshift:
Type:
See object 2026elo
,
2026elp
RA, DEC:04:13:28.434, -47:41:33.86
(63.368473, -47.692738)
Redshift:
Type:
See object 2026elp
,
2026elq
RA, DEC:04:09:29.096, -47:45:11.98
(62.371233, -47.753327)
Redshift:
Type:
See object 2026elq
,
2026elr
RA, DEC:04:03:45.664, -50:04:50.28
(60.940266, -50.080632)
Redshift:
Type:
See object 2026elr
,
2026els
RA, DEC:04:04:32.369, -47:41:15.60
(61.134871, -47.687667)
Redshift:
Type:
See object 2026els
,
2026elt
RA, DEC:04:16:41.868, -48:39:03.95
(64.174449, -48.651098)
Redshift:
Type:
See object 2026elt
,
2026elu
RA, DEC:04:13:03.235, -46:03:48.16
(63.263481, -46.063378)
Redshift:
Type:
See object 2026elu
,
2026elv
RA, DEC:04:10:55.096, -49:06:48.45
(62.729568, -49.113459)
Redshift:
Type:
See object 2026elv
,
2026elw
RA, DEC:04:09:10.463, -46:34:05.01
(62.293594, -46.568058)
Redshift:
Type:
See object 2026elw
,
2026elx
RA, DEC:04:09:24.476, -46:59:16.43
(62.351983, -46.987898)
Redshift:
Type:
See object 2026elx
,
2026ely
RA, DEC:03:51:32.835, -49:59:49.66
(57.886814, -49.997127)
Redshift:
Type:
See object 2026ely
,
2026elz
RA, DEC:04:04:14.743, -49:08:08.35
(61.061430, -49.135652)
Redshift:
Type:
See object 2026elz
,
2026ema
RA, DEC:04:15:50.670, -47:19:24.11
(63.961125, -47.323365)
Redshift:
Type:
See object 2026ema
,
2026emb
RA, DEC:04:02:01.756, -48:25:29.48
(60.507315, -48.424855)
Redshift:
Type:
See object 2026emb
,
2026emc
RA, DEC:04:18:06.971, -46:54:14.21
(64.529046, -46.903948)
Redshift:
Type:
See object 2026emc
,
2026emd
RA, DEC:03:54:26.229, -50:20:23.59
(58.609287, -50.339885)
Redshift:
Type:
See object 2026emd
,
2026eme
RA, DEC:10:05:40.884, +03:19:11.13
(151.420348, 3.319758)
Redshift:
Type:
See object 2026eme
,
2026emf
RA, DEC:04:08:34.014, -49:19:10.32
(62.141725, -49.319533)
Redshift:
Type:
See object 2026emf
,
2026emg
RA, DEC:04:09:43.790, -48:45:19.93
(62.432459, -48.755537)
Redshift:
Type:
See object 2026emg
,
2026emh
RA, DEC:03:52:57.147, -50:05:32.98
(58.238114, -50.092494)
Redshift:
Type:
See object 2026emh
,
2026emi
RA, DEC:03:49:29.412, -49:19:17.99
(57.372549, -49.321663)
Redshift:
Type:
See object 2026emi
,
2026emj
RA, DEC:03:50:06.576, -48:01:44.04
(57.527402, -48.028900)
Redshift:
Type:
See object 2026emj
,
2026emk
RA, DEC:10:03:17.165, +01:03:13.43
(150.821520, 1.053731)
Redshift:
Type:
See object 2026emk
,
2026eml
RA, DEC:04:20:19.344, -48:02:23.01
(65.080601, -48.039726)
Redshift:
Type:
See object 2026eml
,
2026emm
RA, DEC:04:07:17.954, -47:26:58.87
(61.824810, -47.449685)
Redshift:
Type:
See object 2026emm
,
2026emn
RA, DEC:03:51:38.671, -48:00:12.85
(57.911131, -48.003570)
Redshift:
Type:
See object 2026emn
,
2026emo
RA, DEC:04:10:20.238, -46:37:13.71
(62.584326, -46.620474)
Redshift:
Type:
See object 2026emo
,
2026emp
RA, DEC:04:14:05.757, -48:05:02.15
(63.523989, -48.083931)
Redshift:
Type:
See object 2026emp
,
2026emq
RA, DEC:03:58:42.421, -48:31:16.07
(59.676755, -48.521131)
Redshift:
Type:
See object 2026emq
,
2026emr
RA, DEC:03:50:12.826, -49:45:08.83
(57.553440, -49.752453)
Redshift:
Type:
See object 2026emr
,
2026ems
RA, DEC:03:55:24.975, -48:04:46.94
(58.854061, -48.079705)
Redshift:
Type:
See object 2026ems
,
2026emt
RA, DEC:04:08:32.442, -49:10:42.25
(62.135176, -49.178402)
Redshift:
Type:
See object 2026emt
We report 42 supernova candidates from the first night of Rubin alerts, with host galaxy associations and photometric classifications. We encourage spectroscopic follow-up of these candidates.
AstroNote 2026-49
Type: Object/s-Discovery/Classification
Released: 2026-02-26 00:08:36
Hostless candidates detected by ELEPHANT (One final note from The Elephant)
R. Durgesh (independent), P. Pessi (NCBJ), E. E. O. Ishida (CNRS), J. Peloton (CNRS), for the Fink collaboration
Source Group: COIN
Keywords: Time-domain, Surveys, Transient
Related Objects:
2026ejf [313831458352922664]
RA, DEC:04:04:37.779, -48:30:07.25
(61.157411, -48.502013)
Redshift:0.96
Type:SLSN-I
See object 2026ejf [313831458352922664]
,
2025altt
RA, DEC:04:16:51.717, -46:34:29.09
(64.215486, -46.574747)
Redshift:
Type:
See object 2025altt
,
2025altn
RA, DEC:10:07:04.516, +02:32:49.00
(151.768817, 2.546944)
Redshift:1.056
Type:SLSN-I
See object 2025altn
AstroNote 2026-48
Type: Object/s-Discovery/Classification
Released: 2026-02-25 10:21:10
Hostless candidates detected by ELEPHANT
R. Durgesh (independent), P. Pessi (NCBJ), E. E. O. Ishida (CNRS), E. E. Hayes (KIC), L. Nakazono (USP), R. A. P. Olive…
Source Group: COIN
Keywords: Time-domain, Surveys, Transient
Related Objects:
2026ejk [ZTF26aagrkfc]
RA, DEC:15:09:40.664, +00:18:52.87
(227.419433, 0.314686)
Redshift:
Type:
See object 2026ejk [ZTF26aagrkfc]
We report 1 hostless candidates selected by the ELEPHANT pipeline.
AstroNote 2026-47
Type: Object/s-Discovery/Classification
Released: 2026-02-25 10:19:59
Spectral re-classification of ZTF26aaffxis as a Type IIb supernova
Konstantinos Tsalapatas, Jesper Sollerman, Avinash Singh, Anjasha Gangopadhyay (SU), Steve Schulze (Weizmann)
Source Group: ZTF
Keywords: Spectroscopy, Transient, Supernova
Related Objects:
2026cha [ZTF26aaffxis]
RA, DEC:08:32:33.106, -26:28:37.90
(128.137941, -26.477193)
Redshift:0.0393
Type:SN IIb
See object 2026cha [ZTF26aaffxis]
Related Notes:
2026-29
2026-472026-02-11 21:09:33
Title: Photometry and Spectroscopy of AT2026cha
Authors: Rahul Jayaraman (Cornell), Jacob Wise (LJMU), Cassie Sevill…
Source Group: ZTF
,
2026-30
2026-472026-02-11 21:33:27
Title: ESO La Silla Observing School spectroscopic classification of 5 optical transients
Authors: Maria Alejandra Lemus (UNAL), Millena Maciel (ON), Madelein…
,
2026-31
2026-472026-02-12 20:59:14
Title: Tentative classification of AT2026cha as a Rapidly Evolving Type Ic-BL Supernova
Authors: Authors: K-Ryan Hinds (Caltech), Jonathan Carney (UNC), Igo…
Source Group: ZTF
,
2026-34
2026-472026-02-14 18:00:46
Title: X-shooter spectroscopy of the rapidly evolving transient AT2026cha
Authors: Ashley Chrimes (ESA-ESTEC), Peter Jonker (RU), Andrew Levan…
,
2026-42
2026-472026-02-24 03:46:31
Title: X-ray and Radio Non-detection of SN2026cha
Authors: Rahul Jayaraman, Genevieve Schroeder, Anna Y. Q. Ho (Cornel…
SN 2026cha (ZTF26aaffxis) was discovered by Mai et al. (2026) on UT 2026-02-06 16:01:39.648 and was tentatively classified as a Type Ic-BL supernova (AstroNote #2026-31, Hinds et al. 2026). However, …
AstroNote 2026-40
Type: Object/s-Discovery/Classification
Released: 2026-02-22 20:16:53
HOLISMOKES spectroscopic classification of SN 2026dph
S. Taubenberger, S. H. Suyu, S. Bag (TUM/MPA Garching), A. Melo (ESO Garching), S. Schuldt (FINCA/University of Helsink…
Source Group: HOLISMOKES
Keywords: Spectroscopy, Transient, Supernova, Optical
Related Objects:
2026dph [PS26agb]
RA, DEC:14:53:13.930, +20:48:59.31
(223.308042, 20.816475)
Redshift:0.156
Type:SN II
See object 2026dph [PS26agb]
We have obtained an optical spectrum of SN 2026dph, which shows it to be a young Type II supernova at z = 0.156.
AstroNote 2026-39
Type: Object/s-Discovery/Classification
Released: 2026-02-21 00:41:36
SLSN and TDE candidates from NEEDLE on Lasair
X. Sheng, C. R. Angus, M. Nicholl, K. W. Smith, M. Fulton, T. Moore, J. Weston, D. R. Young, D. Magill, A. J. Smith (QU…
Source Group: OxQUB
Keywords: Time-domain, Transient, Supernova, TDE
Related Objects:
2026aog [ZTF26aabryhq]
RA, DEC:16:18:29.049, +72:46:26.55
(244.621038, 72.774042)
Redshift:
Type:
See object 2026aog [ZTF26aabryhq]
,
2026cta [ZTF26aafsyld]
RA, DEC:11:48:32.831, +08:13:54.77
(177.136798, 8.231882)
Redshift:
Type:
See object 2026cta [ZTF26aafsyld]
We report 1 SLSN and 1 TDE candidates from the ZTF public alert stream, identified by the NEEDLE classifier running on the Lasair alert broker. We encourage spectroscopic classification of these even…
AstroNote 2026-37
Type: Object/s-Discovery/Classification
Released: 2026-02-18 19:26:28
ZTF classification of two new TDEs and one Bowen Fluorescence Flare, and spectra/redshifts for three additional TDEs
Erica Hammerstein (UC Berkeley), Ryan Chornock (UC Berkeley), Jonathan Carney (UNC), Robert Stein (UMD), Jean Somalwar …
Source Group: ZTF
Keywords: Transient, TDE, AGN
Related Objects:
2026dmt [ZTF26aafpwna]
RA, DEC:08:28:51.635, +39:04:54.31
(127.215146, 39.081754)
Redshift:0.147
Type:TDE-He
See object 2026dmt [ZTF26aafpwna]
,
2026chm [ZTF26aadsfxv]
RA, DEC:11:05:19.153, +08:07:38.49
(166.329802, 8.127358)
Redshift:0.191
Type:TDE-featureless
See object 2026chm [ZTF26aadsfxv]
,
2026amv [ZTF26aabpzxh]
RA, DEC:08:13:05.296, +01:27:58.33
(123.272066, 1.466204)
Redshift:0.091
Type:TDE
See object 2026amv [ZTF26aabpzxh]
,
2026dmu [ZTF26aadtozg]
RA, DEC:14:58:46.157, +37:35:00.26
(224.692322, 37.583405)
Redshift:0.169
Type:
See object 2026dmu [ZTF26aadtozg]
,
2025zmb [ZTF25abuovxv]
RA, DEC:06:09:46.694, +35:34:19.94
(92.444560, 35.572207)
Redshift:0.345
Type:TDE-featureless
See object 2025zmb [ZTF25abuovxv]
,
2025afvr [ZTF25acfyeke]
RA, DEC:01:07:36.302, +24:22:39.82
(16.901258, 24.377728)
Redshift:0.403
Type:TDE-featureless
See object 2025afvr [ZTF25acfyeke]
We report the classification of optical transients ZTF26aafpwna (AT2026dmt), and ZTF26aadsfxv (AT2026chm) as likely tidal disruption events (TDEs), plus present an additional spectrum for ZTF26aabpzx…
AstroNote 2026-36
Type: Object/s-Discovery/Classification
Released: 2026-02-17 19:33:53
Keck LRIS and Liverpool Telescope IO:O observations of AT2026dbl/ZTF26aaglqak: an exceptionally blue, fast-fading transient at z = 0.19
Jacob Wise (LJMU), Wynn Jacobson-Galan (Caltech), Daniel Perley (LJMU), Anna Y. Q. Ho (Cornell), Zoe McGrath (LJMU), Al…
Source Group: ZTF
Keywords: Photometry, Spectroscopy, Transient
Related Objects:
2026dbl [ZTF26aaglqak]
RA, DEC:09:01:17.374, +18:36:07.73
(135.322392, 18.602147)
Redshift:0.19
Type:
See object 2026dbl [ZTF26aaglqak]
We present Keck LRIS spectroscopy and LT IO:O photometry of the transient AT2026dbl. The transient was first detected on MJD 61085.35 by ZTF, displaying a magnitude of g ~ 18.7 and a colour of g - r …
AstroNote 2026-35
Type: Object/s-Discovery/Classification
Released: 2026-02-17 09:20:41
ATLAS26bty (AT2026dez): discovery of a rising transient 34 kpc offset from NGC 5516 (60 Mpc)
K. W. Smith (Oxford/QUB), D. R. Young, M. Nicholl, M. Fulton, M. McCollum, T. Moore, J. Weston, X. Sheng, A. Aamer, C. …
Source Group: ATLAS
Keywords: Supernova
Related Objects:
2026dez [ATLAS26bty]
RA, DEC:14:15:47.588, -48:05:16.19
(213.948283, -48.087831)
Redshift:0.012
Type:SN Ia
See object 2026dez [ATLAS26bty]
Here we report the ATLAS discovery of the transient ATLAS26bty (AT2026dez) at magnitude m_o = 18.99 +/- 0.19 on MJD = 61084.31 (2026-02-13.31). The transient is significantly offset from the E-S0 gal…
AstroNote 2026-34
Type: Object/s-Discovery/Classification
Released: 2026-02-14 18:00:46
X-shooter spectroscopy of the rapidly evolving transient AT2026cha
Ashley Chrimes (ESA-ESTEC), Peter Jonker (RU), Andrew Levan (RU), Deanne Coppejans (UoW), Paul Groot (RU & UCT), An…
Keywords: Spectroscopy, Supernova
Related Objects:
2026cha [ZTF26aaffxis]
RA, DEC:08:32:33.106, -26:28:37.90
(128.137941, -26.477193)
Redshift:0.0393
Type:SN IIb
See object 2026cha [ZTF26aaffxis]
Related Notes:
2026-29
2026-342026-02-11 21:09:33
Title: Photometry and Spectroscopy of AT2026cha
Authors: Rahul Jayaraman (Cornell), Jacob Wise (LJMU), Cassie Sevill…
Source Group: ZTF
,
2026-30
2026-342026-02-11 21:33:27
Title: ESO La Silla Observing School spectroscopic classification of 5 optical transients
Authors: Maria Alejandra Lemus (UNAL), Millena Maciel (ON), Madelein…
,
2026-31
2026-342026-02-12 20:59:14
Title: Tentative classification of AT2026cha as a Rapidly Evolving Type Ic-BL Supernova
Authors: Authors: K-Ryan Hinds (Caltech), Jonathan Carney (UNC), Igo…
Source Group: ZTF
We obtained VLT/X-shooter spectroscopy of the rapidly evolving transient AT2026cha on 2026-02-13, finding that the continued evolution is consistent with the Ic-BL classification of Astronote #2026-3…
AstroNote 2026-33
Type: Object/s-Discovery/Classification
Released: 2026-02-13 15:31:42
SLSN and TDE candidates from NEEDLE on Lasair
X. Sheng, C. R. Angus, M. Nicholl, K. W. Smith, M. Fulton, T. Moore, J. Weston, D. R. Young, D. Magill, A. J. Smith (QU…
Source Group: OxQUB
Keywords: Time-domain, Transient, Supernova, TDE
Related Objects:
2026cbv [ZTF26aaeymej]
RA, DEC:09:04:39.670, +18:48:48.02
(136.165290, 18.813339)
Redshift:0.1326
Type:SN Ia-91T-like
See object 2026cbv [ZTF26aaeymej]
,
2026ako [ZTF26aaaqepm]
RA, DEC:15:15:56.393, +09:14:37.36
(228.984972, 9.243710)
Redshift:
Type:
See object 2026ako [ZTF26aaaqepm]
,
2026avl [ZTF26aacehfb]
RA, DEC:10:47:42.642, +38:49:48.50
(161.927677, 38.830138)
Redshift:
Type:
See object 2026avl [ZTF26aacehfb]
,
2026amv [ZTF26aabpzxh]
RA, DEC:08:13:05.296, +01:27:58.33
(123.272066, 1.466204)
Redshift:0.091
Type:TDE
See object 2026amv [ZTF26aabpzxh]
,
2026chm [ZTF26aadsfxv]
RA, DEC:11:05:19.153, +08:07:38.49
(166.329802, 8.127358)
Redshift:0.191
Type:TDE-featureless
See object 2026chm [ZTF26aadsfxv]
Related Notes:
2026-32
2026-332026-02-13 15:00:39
Title: TDE candidates from POTICA
Authors: E. Concepcion, S. Bhattacharyya, A. Gomboc, T. Petrushevska…
We report 3 SLSN and 2 TDE candidates from the ZTF public alert stream, identified by the NEEDLE classifier running on the Lasair alert broker. We encourage spectroscopic classification of these even…
AstroNote 2026-32
Type: Object/s-Discovery/Classification
Released: 2026-02-13 15:00:39
TDE candidates from POTICA
E. Concepcion, S. Bhattacharyya, A. Gomboc, T. Petrushevska, O. Razim, G. Contardo, E. Umuzigazuba (University of Nova …
Related Objects:
2026bze [ZTF26aaeqoxr]
RA, DEC:04:00:26.209, -08:49:00.23
(60.109204, -8.816730)
Redshift:
Type:
See object 2026bze [ZTF26aaeqoxr]
,
2026chm [ZTF26aadsfxv]
RA, DEC:11:05:19.153, +08:07:38.49
(166.329802, 8.127358)
Redshift:0.191
Type:TDE-featureless
See object 2026chm [ZTF26aadsfxv]
We report two possible TDEs identified by our photometric classifier POTICA (Photometric Optical TDE Identification and Classification Annotator). We encourage classification and follow-up of these o…
AstroNote 2026-31
Type: Object/s-Discovery/Classification
Released: 2026-02-12 21:32:40
Tentative classification of AT2026cha as a Rapidly Evolving Type Ic-BL Supernova
Authors: K-Ryan Hinds (Caltech), Jonathan Carney (UNC), Igor Andreoni (UNC), Anna Y. Q. Ho (Cornell), Rahul Jayaraman (…
Source Group: ZTF
Related Objects:
2026cha [ZTF26aaffxis]
RA, DEC:08:32:33.106, -26:28:37.90
(128.137941, -26.477193)
Redshift:0.0393
Type:SN IIb
See object 2026cha [ZTF26aaffxis]
We report the tentative classification of the rapidly evolving transient AT2026cha as a Type Ic-BL supernova.
AstroNote 2026-30
Type: Object/s-Discovery/Classification
Released: 2026-02-11 21:33:27
ESO La Silla Observing School spectroscopic classification of 5 optical transients
Maria Alejandra Lemus (UNAL), Millena Maciel (ON), Madeleine McLeod (UOE), Taísa Oliveira (USP), Manuel Pavez (PUC), Th…
Keywords: Supernova, AGN
Related Objects:
2026bzr [ZTF26aaeqrvs]
RA, DEC:06:08:27.767, -00:13:58.83
(92.115696, -0.233010)
Redshift:0.07
Type:SN Ia
See object 2026bzr [ZTF26aaeqrvs]
,
2026cqg [ATLAS26bnq]
RA, DEC:12:03:59.168, -33:19:51.75
(180.996535, -33.331041)
Redshift:0.054
Type:SN Ia
See object 2026cqg [ATLAS26bnq]
,
2026avc [ATLAS26beo]
RA, DEC:12:12:05.236, -28:52:18.16
(183.021818, -28.871710)
Redshift:0.086
Type:SN Ia
See object 2026avc [ATLAS26beo]
,
2026cha [ZTF26aaffxis]
RA, DEC:08:32:33.106, -26:28:37.90
(128.137941, -26.477193)
Redshift:0.0393
Type:SN IIb
See object 2026cha [ZTF26aaffxis]
,
2026fq [ATLAS26acw]
RA, DEC:09:22:32.582, -16:59:07.45
(140.635757, -16.985403)
Redshift:0.055
Type:AGN
See object 2026fq [ATLAS26acw]
We report optical spectroscopic classification of three SNe (Type 1a), one AGN, and one Unknown (blue featureless spectrum). Observations were taken with the EFOSC2 spectrograph at the ESO New Techno…
AstroNote 2026-26
Type: Object/s-Discovery/Classification
Released: 2026-02-09 16:42:06
ESO La Silla Observing School spectroscopic classification of 2 optical transients (2026-02-07)
Maria Alejandra Lemus (UNAL), Millena Maciel (ON), Madeleine McLeod (UofE), Taísa Oliveira (USP), Manuel Pavez (PUC), T…
Keywords: Supernova
Related Objects:
2026ces [ZTF26aafefuy]
RA, DEC:07:39:28.072, +09:17:46.83
(114.866965, 9.296343)
Redshift:0.112
Type:SN Ia
See object 2026ces [ZTF26aafefuy]
,
2026bzy [ZTF26aaevkpj]
RA, DEC:10:04:06.183, -25:15:02.34
(151.025763, -25.250651)
Redshift:0.05
Type:SN II
See object 2026bzy [ZTF26aaevkpj]
We report optical spectroscopic classification of two SNe (type Ia and II). Observations were taken with the EFOSC2 spectrograph at the ESO New Technology Telescope (NTT) during the night of 2026 Feb…

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