Showing results 1 to 50 out of 307
AstroNote 2026-189
Type: Object/s-Data/Analysis
Released: 2026-06-10 21:31:41
SN2026obc: VLA Upper Limits on the Radio Emission from a Nearby Icn SN
Eli Wiston, Nayana AJ, Raffaella Margutti, Ryan Chornock, Itai Sfaradi, Natalie LeBaron (UC Berkeley), Danny Milisavlje…
Keywords: Transient, Supernova, Radio
Related Objects:
2026obc
RA, DEC:01:07:49.425, +41:59:43.38
(16.955936, 41.995384)
Redshift:0.0195
Type:SN Icn
See object 2026obc
Related Notes:
2026-176
2026-1892026-06-02 15:20:56
Title: Identification of AT2026obc: a Rapidly Rising, Possibly Luminous Blue Transient
Authors: Anna Y. Q. Ho (Cornell), Jacob Wise (LJMU), Jesper Sollerma…
Source Group: ZTF
,
2026-180
2026-1892026-06-03 18:05:56
Title: Classification of 2026obc/ZTF26aayznam as a SN Icn z = 0.0195 (85 Mpc)
Authors: Jacob Wise (LJMU), Daniel Perley (LJMU), Rahul Jayaraman (C…
Source Group: ZTF
We report the radio non-detection of the Icn SN2026obc at 10 GHz.
AstroNote 2026-185
Type: Object/s-Data/Analysis
Released: 2026-06-07 03:16:26
DAO Photometric follow up of selected transients
M R. Kendurkar (GSNST) and D. D. Balam (Dominion Astrophysical Observatory, National Research Council of Canada)
Source Group: GSNST
Keywords: Surveys, Photometry, Transient, Nova, Optical
Related Objects:
2025acf
RA, DEC:12:17:21.813, +03:58:26.65
(184.340886, 3.974070)
Redshift:
Type:
See object 2025acf
,
2025aec
RA, DEC:09:07:03.220, +38:19:34.98
(136.763416, 38.326382)
Redshift:0.055
Type:SN Ia
See object 2025aec
,
2025acp
RA, DEC:13:23:11.016, +32:10:41.37
(200.795899, 32.178159)
Redshift:0.042
Type:SN II
See object 2025acp
,
2025aet
RA, DEC:06:51:06.317, +19:46:40.29
(102.776322, 19.777859)
Redshift:0.07
Type:SN Ia
See object 2025aet
,
2025acv
RA, DEC:08:39:56.604, +19:38:40.13
(129.985851, 19.644480)
Redshift:0.032709
Type:SN Ia
See object 2025acv
,
2025aeg
RA, DEC:10:35:25.567, +16:33:26.80
(158.856530, 16.557446)
Redshift:
Type:
See object 2025aeg
,
2025ra
RA, DEC:12:41:30.961, +37:23:20.57
(190.379006, 37.389047)
Redshift:
Type:
See object 2025ra
,
2025re
RA, DEC:13:31:15.557, +29:22:16.30
(202.814821, 29.371196)
Redshift:
Type:
See object 2025re
,
2025uc
RA, DEC:09:15:43.983, +15:43:55.39
(138.933264, 15.732051)
Redshift:
Type:
See object 2025uc
,
2025wl
RA, DEC:08:03:11.614, +05:11:06.06
(120.798394, 5.185018)
Redshift:0.1
Type:SN Ia
See object 2025wl
,
2025acu
RA, DEC:10:33:26.138, +01:50:29.11
(158.358907, 1.841420)
Redshift:0.029
Type:SN Ia
See object 2025acu
,
2025aeb
RA, DEC:13:14:41.041, +19:58:19.59
(198.671003, 19.972109)
Redshift:
Type:
See object 2025aeb
,
2025hr
RA, DEC:12:34:20.039, +05:04:46.85
(188.583498, 5.079681)
Redshift:0.075
Type:SN Ia
See object 2025hr
,
2025lz
RA, DEC:06:01:21.070, +45:32:49.83
(90.337791, 45.547176)
Redshift:
Type:
See object 2025lz
,
2025nn
RA, DEC:07:17:39.340, +43:49:03.12
(109.413917, 43.817533)
Redshift:0.05
Type:SN Ia-91bg-like
See object 2025nn
,
2025ps
RA, DEC:06:54:45.564, +26:37:47.58
(103.689852, 26.629884)
Redshift:
Type:
See object 2025ps
,
2025qk
RA, DEC:03:43:23.083, +45:15:50.10
(55.846179, 45.263918)
Redshift:
Type:
See object 2025qk
We present (SDSS) g&r filter photometric follow up observations of selected optical transients obtained using the 1.82-m Plaskett telescope of the (Dominion Astrophysical Observatory) National Resear…
AstroNote 2026-176
Type: Object/s-Data/Analysis
Released: 2026-06-02 15:30:03
Identification of AT2026obc: a Rapidly Rising, Possibly Luminous Blue Transient
Anna Y. Q. Ho (Cornell), Jacob Wise (LJMU), Jesper Sollerman (OKC) on behalf of a larger collaboration
Source Group: ZTF
Related Objects:
2026obc
RA, DEC:01:07:49.425, +41:59:43.38
(16.955936, 41.995384)
Redshift:0.0195
Type:SN Icn
See object 2026obc
We report the identification of a rapidly brightening (0.4 mag/day), blue (g-r = -0.35 mag), possibly luminous (M = -21.3 mag) transient. We encourage follow-up observations to determine whether the …
AstroNote 2026-174
Type: Object/s-Data/Analysis
Released: 2026-06-01 14:27:52
Einstein Probe Follow-up X-ray Telescope (FXT) Detection of AT2026nik
Rahul Jayaraman (Cornell), Daniel Perley (LJMU), Anna Y. Q. Ho (Cornell), Jacob Wise (LJMU)
Related Objects:
2026nik [ZTF26aaxutnf]
RA, DEC:11:22:52.120, -06:13:18.84
(170.717165, -6.221901)
Redshift:0.182
Type:
See object 2026nik [ZTF26aaxutnf]
We report our analysis of the X-ray source detected at the position of the candidate luminous fast blue optical transient AT2026nik.
AstroNote 2026-158
Type: Object/s-Data/Analysis
Released: 2026-05-28 19:27:14
Photometric follow-up of a Type-Ia Supernova SN 2025fvw with BHTOM.space Global Telescope Network
P.J. Mikolajczyk (U.Wroclaw/NCBJ, PL), L. Wyrzykowski (U.Warsaw/NCBJ, PL/EASST.eu), J. Majumdar (U.Warsaw, PL), P. Pess…
Source Group: BHTOM
Keywords: Time-domain, Catalogs, Photometry, Transient, Optical
Related Objects:
2025fvw
RA, DEC:15:35:25.783, +12:03:27.80
(233.857431, 12.057722)
Redshift:0.0061
Type:SN Ia
See object 2025fvw
We report on the optical photometric follow-up of SN 2025fvw conducted with the BHTOM.space Global Telescope Network.
AstroNote 2026-155
Type: Object/s-Data/Analysis
Released: 2026-05-27 18:45:49
UBC Southern Observatory photometric follow-up of probable galactic nova 2026nmo
D. D. Balam (DAO/NRC), A. C. Boley (University of British Columbia - UBC) and S. Chan (UBC)
Source Group: DAO_OTS
Keywords: Photometry
Related Objects:
2026nmo
RA, DEC:14:23:56.626, -58:37:46.74
(215.985940, -58.629650)
Redshift:
Type:
See object 2026nmo
We present Johnson-Cousins filter differential photometry and astrometry of the probable galactic nova 2026nmo obtained using the University of British Columbia (Thunderbird) Southern Observatory 0.5…
AstroNote 2026-153
Type: Object/s-Data/Analysis
Released: 2026-05-26 03:38:14
DAO and UBC Southern Observatory photometric follow-up of probable galactic nova 2026noc
D. D. Balam (DAO/NRC), A. C. Boley (University of British Columbia - UBC), B. Carchrae (UBC)and S. Chan (UBC) (UBC)
Source Group: DAO_OTS
Keywords: Photometry
Related Objects:
2026noc
RA, DEC:11:44:33.115, -68:48:32.94
(176.137979, -68.809150)
Redshift:
Type:Nova
See object 2026noc
We present Johnson-Cousins filter differential photometry of the probable galactic nova 2026noc obtained using the University of British Columbia (Thunderbird) Southern Observatory 0.5-m + CCD teles…
AstroNote 2026-149
Type: Object/s-Data/Analysis
Released: 2026-05-22 12:51:34
The rapidly evolving transient AT2026naq in IC 0827 at 100 Mpc
S. Srivastav (Oxford), S. J. Smartt, K. W. Smith (Oxford/QUB), D. R. Young, C. R. Angus, M. Nicholl, J. Weston (Queen&#…
Source Group: ATLAS
Keywords: Transient, Supernova
Related Objects:
2026naq [ZTF26aaxgdqa]
RA, DEC:12:51:56.463, +16:16:53.32
(192.985263, 16.281479)
Redshift:0.021
Type:SN IIb
See object 2026naq [ZTF26aaxgdqa]
We report rapid fading in the light curve of AT2026naq/ZTF26aaxgdqa through combined ZTF and ATLAS survey data. The transient shows a fade of 0.5 mag/day from a peak absolute g-band magnitude of -15…
AstroNote 2026-140
Type: Object/s-Data/Analysis
Released: 2026-05-18 10:24:58
Photometric Follow-up of SN 2026fov and AT 2026fbz with BHTOM.space Global Telescope Network
J. Majumdar (U.Warsaw), P. Pessi (NCBJ), L. Wyrzykowski (U.Warsaw/NCBJ/EASST.eu), P.J. Mikolajczyk (U.Wroclaw/NCBJ), K…
Source Group: BHTOM
Keywords: Time-domain, Surveys, Nova, Supernova, Optical
Related Objects:
2026fov
RA, DEC:22:28:27.241, +30:17:54.46
(337.113503, 30.298461)
Redshift:0.003292
Type:SN II
See object 2026fov
,
2026fbz
RA, DEC:04:31:00.535, -68:29:50.28
(67.752230, -68.497300)
Redshift:0.00087
Type:Nova
See object 2026fbz
We report on the optical multiband photometric follow-up of SN 2026fov (Type II SN) and AT 2026fbz (Nova) conducted with the BHTOM.space Global Telescope Network.
AstroNote 2026-135
Type: Object/s-Data/Analysis
Released: 2026-05-15 13:20:02
Photometric follow-up of a Type-Ia Supernova SN 2026fvx with BHTOM.space Global Telescope Network
P.J. Mikolajczyk (U.Wroclaw/NCBJ, PL), L. Wyrzykowski (U.Warsaw/NCBJ, PL/EASST.eu), K. Kotysz (U.Wroclaw/U.Warsaw, PL),…
Source Group: BHTOM
Keywords: Photometry, Transient, Supernova
Related Objects:
2026fvx
RA, DEC:12:14:58.133, +63:47:16.41
(183.742223, 63.787891)
Redshift:0.004846
Type:SN Ia
See object 2026fvx
Related Notes:
2026-102
2026-1352026-04-16 10:14:19
Title: gri-band photometry of SN 2026fvx with the Stone Edge Observatory 0.5m telescope
Authors: Will Langford, Vivek Cherian, Ava Lewin, Hexi Jin, Richard …
,
2026-104
2026-1352026-04-17 15:51:45
Title: SN 2026fvx : Photometric and SED follow-up of the SN in NGC 4205 with the RAPAS ProAm network
Authors: Thierry Midavaine (I73, Club Eclipse), Christophe Boussin (…
Source Group: RAPAS
,
2026-76
2026-1352026-03-18 15:24:45
Title: SN 2026fvx: Kinder Follow-up Observations of a Rapidly Brightening Young Type Ia Supernova
Authors: Y.-H. Lee, M.-H. Lee, T.-W. Chen, Y.-C. Pan, H.-Y. Hsiao, A…
Source Group: Kinder
We report on the optical multiband photometric follow-up of SN 2026fvx conducted with the BHTOM.space Global Telescope Network.
AstroNote 2026-134
Type: Object/s-Data/Analysis
Released: 2026-05-14 15:46:59
DAO and UBC Southern Observatory photometric follow-up of selected transients 2026-III (May 2026)
D. D. Balam (DAO/NRC), A. C. Boley (University of British Columbia - UBC) and S. Chan (UBC) & A. Schildhorn (UBC)
Source Group: DAO_OTS
Keywords: Photometry
Related Objects:
2026iea
RA, DEC:09:58:16.781, +27:40:45.48
(149.569920, 27.679299)
Redshift:0.083
Type:SN Ia
See object 2026iea
,
2026kyu
RA, DEC:18:12:54.411, +11:22:56.95
(273.226713, 11.382486)
Redshift:0.0856
Type:SN Ia
See object 2026kyu
,
2026lar
RA, DEC:18:10:23.176, +45:38:19.84
(272.596568, 45.638845)
Redshift:
Type:
See object 2026lar
,
2026lfd [ATLAS26fdl]
RA, DEC:11:48:30.606, +50:02:04.84
(177.127523, 50.034678)
Redshift:
Type:
See object 2026lfd [ATLAS26fdl]
,
2026lhu
RA, DEC:14:24:23.100, +25:47:19.64
(216.096250, 25.788789)
Redshift:0.073
Type:SN Ia
See object 2026lhu
,
2026ljv
RA, DEC:15:03:12.643, +44:22:24.77
(225.802678, 44.373547)
Redshift:0.04
Type:SN Ia
See object 2026ljv
,
2026kia
RA, DEC:10:53:55.518, -16:06:06.72
(163.481326, -16.101866)
Redshift:0.014577
Type:SN II
See object 2026kia
,
2026lkm
RA, DEC:14:41:39.027, -37:13:46.68
(220.412611, -37.229635)
Redshift:0.028
Type:SN Ia
See object 2026lkm
,
2026lqa
RA, DEC:12:41:42.770, -17:46:00.00
(190.428208, -17.766667)
Redshift:
Type:
See object 2026lqa
,
2026lru
RA, DEC:10:23:49.563, -20:57:29.52
(155.956512, -20.958200)
Redshift:0.026
Type:SN Ia
See object 2026lru
,
2026mcc
RA, DEC:13:33:34.230, -20:38:04.35
(203.392625, -20.634541)
Redshift:
Type:
See object 2026mcc
,
2026lnt
RA, DEC:15:55:05.718, +01:53:48.70
(238.773825, 1.896861)
Redshift:0.02
Type:SN II
See object 2026lnt
,
2026lxf
RA, DEC:15:03:05.190, +22:02:04.10
(225.771625, 22.034472)
Redshift:0
Type:CV
See object 2026lxf
,
2026mhn
RA, DEC:16:44:31.651, -27:15:18.38
(251.131879, -27.255106)
Redshift:0
Type:CV
See object 2026mhn
We present (SDSS) g&r filter (DAO) and (Kron-Cousins - V & R) photometric follow up observations of selected optical transients obtained using the 1.82-m Plaskett telescope of the (Dominion Astrophys…
AstroNote 2026-130
Type: Object/s-Data/Analysis
Released: 2026-05-11 11:18:39
Photometric Follow-up of Selected Variable Sources with BHTOM.space Global Telescope Network
J. Majumdar (U.Warsaw), P. Pessi (NCBJ), L. Wyrzykowski (U.Warsaw/NCBJ/EASST.eu), P.J. Mikolajczyk (U.Wroclaw/NCBJ), K…
Source Group: BHTOM
Keywords: Time-domain, Surveys, Variable Star, Cataclysmic Variable, Nova, Microlensing, Optical
Related Objects:
2026coj
RA, DEC:08:01:11.020, -03:43:14.10
(120.295917, -3.720583)
Redshift:0
Type:CV
See object 2026coj
,
2025wyg
RA, DEC:17:30:12.300, -27:53:48.80
(262.551250, -27.896889)
Redshift:
Type:Nova
See object 2025wyg
,
2019uix [Gaia19eyy]
RA, DEC:08:30:42.490, -41:33:42.52
(127.677042, -41.561811)
Redshift:
Type:
See object 2019uix [Gaia19eyy]
,
2024sfn [Gaia24cfg]
RA, DEC:17:50:13.290, -40:24:40.00
(267.555375, -40.411111)
Redshift:
Type:
See object 2024sfn [Gaia24cfg]
,
2024aboo [Gaia24dhn]
RA, DEC:06:09:19.240, -06:41:55.82
(92.330167, -6.698839)
Redshift:
Type:
See object 2024aboo [Gaia24dhn]
,
2024abwu [Gaia24dja]
RA, DEC:06:27:28.720, +03:52:23.16
(96.869667, 3.873100)
Redshift:
Type:
See object 2024abwu [Gaia24dja]
,
2025ahn
RA, DEC:15:00:36.520, -29:25:49.17
(225.152166, -29.430324)
Redshift:
Type:
See object 2025ahn
We report on the optical multiband photometric follow-up of 2026coj, 2025wyg, 2019uix, 2024sfn, 2024aboo, 2024abwu and 2025ahn conducted with the BHTOM.space Global Telescope Network.
AstroNote 2026-122
Type: Object/s-Data/Analysis
Released: 2026-05-05 15:18:40
Multi-band Photometric Follow-up of TDE 2025aarm and TDE 2025bri with BHTOM.space Global Telescope Network
J. Majumdar (U.Warsaw), P. Pessi (NCBJ), L. Wyrzykowski (U.Warsaw/NCBJ/EASST.eu), P.J. Mikolajczyk (U.Wroclaw/NCBJ), K…
Source Group: BHTOM
Keywords: Time-domain, Surveys, TDE, Optical
Related Objects:
2025aarm
RA, DEC:04:32:12.399, -05:22:39.51
(68.051664, -5.377641)
Redshift:0.01368
Type:TDE
See object 2025aarm
,
2025bri
RA, DEC:14:10:40.438, -10:47:57.00
(212.668493, -10.799167)
Redshift:0.061
Type:TDE-He
See object 2025bri
We report on the optical multiband photometric follow-up of TDE 2025aarm and TDE 2025bri conducted with the BHTOM.space Global Telescope Network.
AstroNote 2026-118
Type: Object/s-Data/Analysis
Released: 2026-04-29 11:32:55
Photometric Follow-up of Selected Supernovae with BHTOM.space Global Telescope Network
J. Majumdar (U.Warsaw), P. Pessi (NCBJ), L. Wyrzykowski (U.Warsaw/NCBJ/EASST.eu), P.J. Mikolajczyk (U.Wroclaw/NCBJ), K…
Source Group: BHTOM
Keywords: Time-domain, Surveys, Photometry, Supernova, Optical
Related Objects:
2026afe
RA, DEC:06:39:26.449, -21:49:20.59
(99.860205, -21.822386)
Redshift:0.01
Type:SN Ia-pec
See object 2026afe
,
2025zjx
RA, DEC:01:24:33.515, +03:47:11.12
(21.139648, 3.786421)
Redshift:0.0078
Type:SN II
See object 2025zjx
,
2025mb
RA, DEC:00:34:16.878, -27:48:05.26
(8.570324, -27.801460)
Redshift:0.005
Type:SN IIb
See object 2025mb
,
2026bti
RA, DEC:14:02:46.407, +24:49:36.22
(210.693361, 24.826729)
Redshift:0.064
Type:SN IIn
See object 2026bti
,
2025aarn
RA, DEC:04:37:19.577, -08:46:35.95
(69.331570, -8.776654)
Redshift:0.01685
Type:SN II
See object 2025aarn
,
2025aox
RA, DEC:18:58:55.352, +25:57:06.38
(284.730632, 25.951773)
Redshift:0.04
Type:SN Ia-SC
See object 2025aox
We report on the optical multiband photometric follow-up of SN 2026afe, SN 2025zjx, SN 2025mb, SN 2026bti, SN 2025aarn, and SN 2025aox, conducted with the BHTOM.space Global Telescope Network.
AstroNote 2026-117
Type: Object/s-Data/Analysis
Released: 2026-04-28 12:52:55
DAO and UBC Southern Observatory photometric follow-up of selected transients 2026-II
D. D. Balam (DAO/NRC), A. C. Boley (University of British Columbia - UBC) and S. Chan (UBC)
Source Group: DAO_OTS
Keywords: Photometry
Related Objects:
2026iea
RA, DEC:09:58:16.781, +27:40:45.48
(149.569920, 27.679299)
Redshift:0.083
Type:SN Ia
See object 2026iea
,
2026ked
RA, DEC:10:46:05.916, +41:46:18.88
(161.524650, 41.771912)
Redshift:
Type:
See object 2026ked
,
2026khk
RA, DEC:16:16:44.333, +52:18:26.69
(244.184720, 52.307415)
Redshift:
Type:
See object 2026khk
,
2026kjw
RA, DEC:15:09:15.955, +68:56:49.44
(227.316480, 68.947068)
Redshift:
Type:
See object 2026kjw
,
2026kob
RA, DEC:17:09:50.810, +26:09:14.16
(257.461708, 26.153933)
Redshift:0.046
Type:SN Ia
See object 2026kob
,
2026kra
RA, DEC:13:37:50.630, +28:28:21.58
(204.460960, 28.472661)
Redshift:
Type:
See object 2026kra
,
2026ktv
RA, DEC:12:50:40.240, +33:39:42.77
(192.667667, 33.661881)
Redshift:
Type:
See object 2026ktv
,
2026kia
RA, DEC:10:53:55.518, -16:06:06.72
(163.481326, -16.101866)
Redshift:0.014577
Type:SN II
See object 2026kia
We present (SDSS) g&r filter (DAO) and (Kron-Cousins - V & R) photometric follow up observations of selected optical transients obtained using the 1.82-m Plaskett telescope of the (Dominion Astrophys…
AstroNote 2026-106
Type: Object/s-Data/Analysis
Released: 2026-04-21 09:18:42
Multi-band Photometric Follow-up of SN 2026ayt with BHTOM.space Global Telescope Network
J.Majumdar (U.Warsaw, PL), P. Pessi (NCBJ, PL), L. Wyrzykowski (U.Warsaw/NCBJ, PL/EASST.eu), P.J. Mikolajczyk (U.Wrocla…
Source Group: BHTOM
Keywords: Time-domain, Surveys, Supernova, Optical
Related Objects:
2026ayt
RA, DEC:09:27:23.390, -32:00:30.88
(141.847459, -32.008577)
Redshift:0.0036
Type:SN II
See object 2026ayt
We report on the optical multiband photometric follow-up of SN 2026ayt conducted with the BHTOM.space Global Telescope Network.
AstroNote 2026-105
Type: Object/s-Data/Analysis
Released: 2026-04-21 09:13:09
Multi-band Photometric Follow-up of SN 2026dix with BHTOM.space Global Telescope Network, along with the 50-mm Seestar S50 camera
J.Majumdar (U.Warsaw, PL), P. Pessi (NCBJ, PL), L. Wyrzykowski (U.Warsaw/NCBJ, PL/EASST.eu), P.J. Mikolajczyk (U.Wrocla…
Source Group: BHTOM
Keywords: Time-domain, Surveys, Supernova, Optical
Related Objects:
2026dix
RA, DEC:11:50:37.428, +55:21:12.92
(177.655950, 55.353589)
Redshift:0.0032
Type:SN IIb
See object 2026dix
We report on the optical multiband photometric follow-up of SN2026dix conducted with the BHTOM.space Global Telescope Network.
AstroNote 2026-102
Type: Object/s-Data/Analysis
Released: 2026-04-16 10:21:06
gri-band photometry of SN 2026fvx with the Stone Edge Observatory 0.5m telescope
Will Langford, Vivek Cherian, Ava Lewin, Hexi Jin, Richard Kron (University of Chicago)
Keywords: Photometry, Supernova
Related Objects:
2026fvx
RA, DEC:12:14:58.133, +63:47:16.41
(183.742223, 63.787891)
Redshift:0.004846
Type:SN Ia
See object 2026fvx
We report gri-band photometry of SN 2026fvx obtained with the Stone Edge Observatory 0.5m telescope on 2026 April 6 and April 8 (UT).
AstroNote 2026-101
Type: Object/s-Data/Analysis
Released: 2026-04-14 08:37:49
X-ray Brightening of the Tidal Disruption Event AT 2025aarm
Gaurava K. Jaisawal, Hannah Wichern (DTU Space), Panos Charalampopoulos (ICE-CSIC)
Keywords: Transient, TDE, X-rays
Related Objects:
2025aarm
RA, DEC:04:32:12.399, -05:22:39.51
(68.051664, -5.377641)
Redshift:0.01368
Type:TDE
See object 2025aarm
Related Notes:
2025-311
2026-1012025-10-30 18:30:50
Title: Classification of AT 2025aarm as a Rising Nearby H+He TDE
Authors: Sara Faris (Tel Aviv University), Hugo Tranin (Universitat …
Source Group: StarDestroyers
,
2025-316
2026-1012025-11-07 23:42:09
Title: X-ray detection of the TDE 2025aarm using Chandra
Authors: J. Somalwar (UC Berkeley/KIPAC@Stanford), R. Chornock (UC B…
We report the follow-up X-ray observation of TDE AT 2025aarm.
AstroNote 2026-99
Type: Object/s-Data/Analysis
Released: 2026-04-12 15:19:52
DAO and UBC Southern Observatory photometric follow-up of selected transients
D. D. Balam (DAO/NRC), A. C. Boley (University of British Columbia - UBC), A. Schildborn (UBC) and S. Chan (UBC)
Source Group: DAO_OTS
Keywords: Photometry
Related Objects:
2026icu
RA, DEC:07:36:32.513, +50:19:24.81
(114.135472, 50.323557)
Redshift:
Type:
See object 2026icu
,
2026icw
RA, DEC:11:28:54.874, +21:06:30.69
(172.228641, 21.108525)
Redshift:0.07907
Type:SN Ia
See object 2026icw
,
2026iea
RA, DEC:09:58:16.781, +27:40:45.48
(149.569920, 27.679299)
Redshift:0.083
Type:SN Ia
See object 2026iea
,
2026iei
RA, DEC:11:27:42.586, +54:15:47.15
(171.927442, 54.263097)
Redshift:0.049
Type:SN Ia
See object 2026iei
,
2026ies
RA, DEC:16:23:37.419, +39:12:11.85
(245.905912, 39.203290)
Redshift:0.02
Type:SN II
See object 2026ies
,
2026ign
RA, DEC:16:01:19.680, +44:58:06.20
(240.332000, 44.968389)
Redshift:
Type:
See object 2026ign
,
2026ihi
RA, DEC:11:45:04.582, +19:58:15.60
(176.269092, 19.971001)
Redshift:0.017
Type:SN II
See object 2026ihi
,
2026iho
RA, DEC:14:49:19.404, +33:17:41.02
(222.330850, 33.294727)
Redshift:0.088
Type:SN Ia
See object 2026iho
,
2026iih
RA, DEC:07:13:47.698, +58:48:26.60
(108.448741, 58.807388)
Redshift:
Type:
See object 2026iih
,
2026ijm
RA, DEC:12:35:13.975, +41:45:24.96
(188.808229, 41.756933)
Redshift:
Type:
See object 2026ijm
,
2026imm
RA, DEC:10:30:43.190, +40:16:01.97
(157.679958, 40.267214)
Redshift:
Type:
See object 2026imm
,
2026isc
RA, DEC:16:35:34.990, +26:38:38.36
(248.895792, 26.643989)
Redshift:0.057498
Type:SN Ia
See object 2026isc
,
2026iuk
RA, DEC:10:01:10.740, +29:37:27.72
(150.294750, 29.624367)
Redshift:
Type:
See object 2026iuk
,
2026iuq
RA, DEC:14:24:08.131, +22:56:14.71
(216.033879, 22.937420)
Redshift:
Type:
See object 2026iuq
,
2026fog
RA, DEC:10:15:46.390, -05:25:25.30
(153.943291, -5.423693)
Redshift:
Type:
See object 2026fog
,
2026frd
RA, DEC:08:02:41.345, +09:17:30.12
(120.672272, 9.291700)
Redshift:
Type:
See object 2026frd
,
2026idf
RA, DEC:15:33:21.782, -41:04:00.27
(233.340758, -41.066742)
Redshift:
Type:CV
See object 2026idf
,
2026iur
RA, DEC:09:54:32.050, -01:17:25.84
(148.633540, -1.290510)
Redshift:0.02057
Type:SN Ia
See object 2026iur
We present (SDSS) g&r filter (DAO) and (Kron-Cousins - UC) photometric follow up observations of selected optical transients obtained using the 1.82-m Plaskett telescope of the (Dominion Astrophysica…
AstroNote 2026-93
Type: Object/s-Data/Analysis
Released: 2026-04-03 00:01:27
Spectroscopic Observations of AT 2026hir/ZTF26aapviim, the counterpart to EP260324A
Robert Stein (UMD/JSI/NASA GSFC), Kaustav Das (Caltech), Christoffer Fremling (Caltech), Tomas Ahumada (NOIRLab), Akash…
Source Group: ZTF
Keywords: Time-domain, Transient, TDE, X-rays
Related Objects:
2026hir [ZTF26aapviim]
RA, DEC:08:44:12.377, +82:01:11.36
(131.051569, 82.019822)
Redshift:0.088
Type:TDE
See object 2026hir [ZTF26aapviim]
Related Notes:
2026-87
2026-932026-03-27 01:13:02
Title: Identification of the redshift of EP Transient EP260324a
Authors: Jiazheng Zhu (USTC), Ning Jiang (USTC), Linna Xu (USTC), Y…
Source Group: USTC-TDE
We report the spectroscopic observations of AT 2026hir/ZTF26aapviim, the counterpart to EP260324A. The source has a blue continuum, and possibly exhibits an additional broad feature that could be He …
AstroNote 2026-90
Type: Object/s-Data/Analysis
Released: 2026-03-30 00:08:29
POISE Observations of the Rapidly Rising 2026hkg
Willem Hoogendam (Hawaii), Nidia Morrell (Carnegie), Chris Burns (Carnegie), Chris Ashall (Hawaii), Eric Hsiao (FSU), C…
Source Group: POISE
Related Objects:
2026hkg [ATLAS26djy]
RA, DEC:09:03:36.117, -67:58:13.34
(135.900486, -67.970372)
Redshift:0.004733
Type:SN II
See object 2026hkg [ATLAS26djy]
The POISE Collaboration reports a ~1 mag per day rise for the flash-ionized SN II 2026hkg. We report intranight rises of 0.4mags over 7 hours on UT 2026-03-28 and 0.1 mags over 2 hours on UT 2026-03-…
AstroNote 2026-86
Type: Object/s-Data/Analysis
Released: 2026-03-26 14:07:37
Photometric observations of AT2026cex with BHTOM.space Global Telescope Network
Joysankar Majumdar (U.Warsaw, PL), L. Wyrzykowski (U.Warsaw/NCBJ, PL/EASST.eu), P.J. Mikolajczyk (U.Wroclaw/NCBJ, PL), …
Source Group: BHTOM
Keywords: Time-domain, Surveys, Transient, Optical
Related Objects:
2026cex [ZTF26aaedxli]
RA, DEC:07:30:08.510, +24:30:05.09
(112.535458, 24.501414)
Redshift:
Type:
See object 2026cex [ZTF26aaedxli]
We report on the optical multiband photometric follow-up of AT2026cex conducted with the BHTOM.space Global Telescope Network.
AstroNote 2026-80
Type: Object/s-Data/Analysis
Released: 2026-03-20 12:55:23
Photometric observations of LSST targets with BHTOM.space Global Telescope Network
P. Pessi (NCBJ), L. Wyrzykowski (NCBJ/OAUW), M.Siwak (UKEN), K.Siennicki (U.Warsaw), S. Swiercz (U.Warsaw), M.Dominik (…
Related Objects:
2026ejx
RA, DEC:10:01:07.335, +02:44:47.74
(150.280563, 2.746594)
Redshift:
Type:
See object 2026ejx
,
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]
,
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]
We report follow up photometry of the transient AT 2026ejx (LSST object 170046089928376424), the SN 2026eqf (LSST object 313994139532263447) and the SN 2026ekf (LSST object 170032917163016282)
AstroNote 2026-76
Type: Object/s-Data/Analysis
Released: 2026-03-18 15:43:01
SN 2026fvx: Kinder Follow-up Observations of a Rapidly Brightening Young Type Ia Supernova
Y.-H. Lee, M.-H. Lee, T.-W. Chen, Y.-C. Pan, H.-Y. Hsiao, A. Dutta, A. Aryan (all NCU), S. Yang (HNAS), C.-Y. Cheng, H…
Source Group: Kinder
Keywords: Supernova
Related Objects:
2026fvx
RA, DEC:12:14:58.133, +63:47:16.41
(183.742223, 63.787891)
Redshift:0.004846
Type:SN Ia
See object 2026fvx
Related Notes:
2021-92
2026-762021-03-20 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, H…
Source Group: Kinder
,
2026-75
2026-762026-03-18 11:43:59
Title: AT2026fvx: discovery of a young SN candidate in NGC 4205 (17.5 Mpc)
Authors: R. Konno, E. A. Zimmerman, E. O. Ofek, A. Horowicz, A. Gal-…
Source Group: LAST
We observed the nearby young Type Ia supernova SN 2026fvx in NGC 4205 (Konno et al., AstroNote 2026-75) with the 40-cm SLT at Lulin Observatory. We measured magnitudes of g = 17.99 ± 0.06, r = 17.97 …
AstroNote 2026-71
Type: Object/s-Data/Analysis
Released: 2026-03-16 09:27:44
AT 2026fns (ATLAS26cyf): Further Kinder follow-up observations reveal no continuation of the rapid decay
C.-H. Lai, A. Aryan, Y.-H. Lee, C.-S. Lin, T.-W. Chen, A. Sankar.K, M.-H. Lee, Y.-C. Pan, W.-J. Hou, H.-Y. Hsiao, H.-C…
Source Group: Kinder
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]
Related Notes:
2026-70
2026-712026-03-14 19:20:40
Title: ATLAS26cyf (AT2026fns): discovery of a fast fading transient in a faint blue host
Authors: K. W. Smith, L. Eastman, S.J. Smartt (Oxford/QUB), D. R. Yo…
Source Group: ATLAS
We observed the previously reported (AstroNote 2026-70) transient ATLAS26cyf (AT 2026fns) with 1m LOT at the Lulin Observatory. The reported transient has magnitudes of g = 19.17 +/- 0.04 and r = 18…
AstroNote 2026-65
Type: Object/s-Data/Analysis
Released: 2026-03-11 19:39:24
Photometry of a Red Fast Optical Transient
K-Ryan Hinds (Caltech), Xander J. Hall (CMU), Daniel A. Perley (LJMU), Anna Y. Q. Ho (Cornell), Jacob Wise (LJMU), Rah…
Source Group: ZTF
Related Objects:
2026fgk [ZTF26aakjzdt]
RA, DEC:14:37:16.143, +71:50:30.32
(219.317261, 71.841754)
Redshift:0.153
Type:Afterglow
See object 2026fgk [ZTF26aakjzdt]
We report optical photometry of a rapidly rising (>6 mag/d) and fading (0.9 mag/d) red optical transient coincident with a host with LS photoz = 0.11 +/-0.02, implying a luminous peak magnitude of ~-…
AstroNote 2026-60
Type: Object/s-Data/Analysis
Released: 2026-03-07 20:04:54
DAO photometric follow-up of selected transients - 2026A
D. D. Balam (Dominion Astrophysical Observatory, National Research Council of Canada)
Source Group: DAO_OTS
Keywords: Photometry
Related Objects:
2026cbp
RA, DEC:05:49:25.252, +46:40:50.68
(87.355218, 46.680743)
Redshift:
Type:
See object 2026cbp
,
2026cbr
RA, DEC:04:48:57.952, +05:58:59.53
(72.241465, 5.983203)
Redshift:
Type:
See object 2026cbr
,
2026cei
RA, DEC:14:33:32.963, +53:26:22.42
(218.387345, 53.439560)
Redshift:
Type:
See object 2026cei
,
2026cgw
RA, DEC:15:27:13.339, +36:26:24.50
(231.805579, 36.440140)
Redshift:
Type:
See object 2026cgw
,
2026emv
RA, DEC:14:39:40.280, +43:05:16.65
(219.917831, 43.087959)
Redshift:
Type:
See object 2026emv
,
2026emx
RA, DEC:05:09:25.708, +56:11:13.74
(77.357118, 56.187150)
Redshift:
Type:
See object 2026emx
,
2026enl
RA, DEC:08:33:19.218, +29:50:49.02
(128.330076, 29.846950)
Redshift:0.049004
Type:SN II
See object 2026enl
,
2026eot
RA, DEC:14:16:24.181, +38:10:44.93
(214.100754, 38.179147)
Redshift:
Type:
See object 2026eot
,
2026eou
RA, DEC:12:54:48.680, +15:57:25.83
(193.702833, 15.957175)
Redshift:
Type:
See object 2026eou
,
2026eqh
RA, DEC:13:33:55.305, +41:25:56.91
(203.480437, 41.432476)
Redshift:
Type:
See object 2026eqh
,
2026eqj
RA, DEC:12:49:51.889, +34:08:16.92
(192.466206, 34.138034)
Redshift:
Type:
See object 2026eqj
We present (SDSS) g&r filter photometric follow up observations of selected optical transients obtained using the 1.82-m Plaskett telescope of the (Dominion Astrophysical Observatory) National Resear…
AstroNote 2026-53
Type: Object/s-Data/Analysis
Released: 2026-02-28 23:46:10
Late-Time Detection of the Ca-rich SN Ia-pec 2024kce in Early LSST Alerts
Kaustav K. Das, Mansi Kasliwal, Theophile Jegou du Laz, Thomas Culino, Wynn Jacobson-Galán, Christoffer Fremling, Sam R…
Source Group: ZTF
Keywords: Time-domain, Catalogs, Surveys, Techniques, Transient, Supernova
Related Objects:
2024kce [ZTF24aaqaroi]
RA, DEC:12:29:49.560, +08:12:48.49
(187.456500, 8.213469)
Redshift:0.003
Type:SN Ia-pec
See object 2024kce [ZTF24aaqaroi]
Related Notes:
2024-340
2026-532024-11-16 06:37:08
Title: The First Science Spectrum with the Next Generation Palomar Spectrograph (NGPS): Classification of ZTF24abrfcqd as a Type Ia Supernova
Authors: Mansi M. Kasliwal, Christoffer Fremling, Lin Yan, Kaustav D…
Source Group: ZTF
We report the late-time detection of the Ca-rich Ia-pec SN 2024kce in early LSST alerts, approximately 640 days after explosion.. The source was identified through a dedicated filter operating within…
AstroNote 2026-52
Type: Object/s-Data/Analysis
Released: 2026-02-28 04:59:22
AT 2026epw: Discovery of a possible nova from Vera Rubin Observatory
Anirudh Salgundi (UNC), Igor Andreoni (UNC), Akash Anumarlapudi (UNC), James Freeburn (UNC), Theophile du Laz (Caltech)…
Source Group: ATALab
Related Objects:
2026epw
RA, DEC:12:21:57.816, +08:39:36.01
(185.490899, 8.660004)
Redshift:
Type:
See object 2026epw
We report the discovery of a possible classical nova identified within the Vera C. Rubin Observatory commissioning alert stream. The transient (AT 2026epw) is located at a projected offset of 54.2'' …
AstroNote 2026-51
Type: Object/s-Data/Analysis
Released: 2026-02-26 08:57:05
Spectroscopic classification of a nearby slowly rising, interacting transient consistent with an LBV or pre-supernova outburs
S. J. Brennan (MPE), W. Jacobson-Galán (Caltech) on behalf of ZTF collaboration
Related Objects:
2025ajmz [ZTF25acjbjpa]
RA, DEC:11:56:30.186, +55:06:54.26
(179.125774, 55.115071)
Redshift:0.0037100000772625
Type:SN IIn
See object 2025ajmz [ZTF25acjbjpa]
We report spectroscopic observations of the slowly rising transient SN 2025ajmz in NGC 3982, consistent with an LBV eruption or pre-supernova outburst.
AstroNote 2026-46
Type: Object/s-Data/Analysis
Released: 2026-02-25 09:36:19
AT 2025agpz / ATLAS25pny / LSST-P-DO-313761043604045880: SLSN candidate in the first Rubin / LSST alerts
I. Pérez-Fournon (IAC and ULL), F. Poidevin (IAC and ULL), D. Cano-Morales, A.E. Hernández-Díaz, I. Correa-Plasencia, E…
Source Group: SGLF
Keywords: Time-domain, Transient, Supernova
Related Objects:
2025agpz [ATLAS25pny]
RA, DEC:04:07:51.557, -48:42:48.40
(61.964820, -48.713443)
Redshift:
Type:
See object 2025agpz [ATLAS25pny]
We report on a candidate SLSN, first discovered by ATLAS (ATLAS25pny, AT 2025agpz) and with a well defined light curve (object LSST-P-DO-313761043604045880) in the first Rubin alerts.
AstroNote 2026-45
Type: Object/s-Data/Analysis
Released: 2026-02-25 09:31:39
Spectroscopic Observations of AT 2025agpz, a Long-Rising Hydrogen-Rich Transient in Rubin-LSST Commissioning Data
C. R. Angus (QUB), H. Stevance (Oxford), M. Nicholl (QUB), K. W. Smith, S. Smartt (Oxford/QUB), D. R. Young, M. Fulton,…
Source Group: OxQUB
Related Objects:
2025agpz [ATLAS25pny]
RA, DEC:04:07:51.557, -48:42:48.40
(61.964820, -48.713443)
Redshift:
Type:
See object 2025agpz [ATLAS25pny]
We report spectroscopic observations of AT 2025agpz (ATLAS25pny), a luminous, long-rising hydrogen-rich transient discovered by ATLAS and independently detected in Rubin-LSST Deep Drilling Field comm…
AstroNote 2026-42
Type: Object/s-Data/Analysis
Released: 2026-02-24 03:46:31
X-ray and Radio Non-detection of SN2026cha
Rahul Jayaraman, Genevieve Schroeder, Anna Y. Q. Ho (Cornell); Yifang Liang, Yun Wang (PMO, CAS); Ziming Wang (BNU); Hu…
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 X-ray and radio nondetections for SN2026cha, classified as a Type Ic-BL, which showed a rapidly evolving optical light curve with shock cooling emission.
AstroNote 2026-41
Type: Object/s-Data/Analysis
Released: 2026-02-23 21:01:41
90 GHz Radio Detection of AT2026dbl with GBT/MUSTANG-2
John Orlowski-Scherer, Charles Romero (U Penn), Anna Ho (Cornell) on behalf of the MUSTANG-2 Collaboration
We report a detection of the LFBOT AT2026dbl at 90GHz using the MUSTANG-2 instrument on the 100-m Green Bank Telescope.
AstroNote 2026-38
Type: Object/s-Data/Analysis
Released: 2026-02-19 18:20:11
Einstein Probe Follow-up X-ray Telescope (FXT) Detection of AT2026dbl
Rahul Jayaraman (Cornell), Ning Jiang (USTC), Anna Y. Q. Ho (Cornell), Hui Sun (NAOC), Xinxiang Sun (NAO), Y. L. Wang (…
Related Objects:
2026dbl
RA, DEC:09:01:17.374, +18:36:07.73
(135.322392, 18.602147)
Redshift:0.19
Type:
See object 2026dbl
We report a preliminary analysis of the likely X-ray source corresponding to the luminous fast blue optical transient AT2026dbl.
AstroNote 2026-29
Type: Object/s-Data/Analysis
Released: 2026-02-11 21:09:33
Photometry and Spectroscopy of AT2026cha
Rahul Jayaraman (Cornell), Jacob Wise (LJMU), Cassie Sevilla (Cornell), Zoë McGrath (LJMU), K-Ryan Hinds (Caltech), Ann…
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 photometry and spectroscopy of a rapidly rising (>1.5 mag/day) and blue optical transient located close in projection to a z=0.04 dwarf galaxy.
AstroNote 2026-28
Type: Object/s-Data/Analysis
Released: 2026-02-11 20:28:12
NTT/EFOSC2 spectroscopic follow-up of the young Type II SN2026cff
Thallis Pessi (ESO), Maria Alejandra Lemus (UNAL), Millena Maciel (ON), Madeleine McLeod (UofE), Taisa Oliveira (USP), …
Keywords: Supernova
Related Objects:
2026cff [ZTF26aaffpvx]
RA, DEC:11:23:31.634, -08:39:15.08
(170.881809, -8.654190)
Redshift:0.0122
Type:SN II
See object 2026cff [ZTF26aaffpvx]
We report the spectroscopic follow-up of the young Type II SN2026cff with the EFOSC2 spectrograph at the ESO NTT telescopes. Spectra were obtained during the nights of 2026 Feb. 08, 09 and 10. Observ…
AstroNote 2026-27
Type: Object/s-Data/Analysis
Released: 2026-02-10 12:33:38
Photometric observations of a Type-Ia Supernova SN2025ahsa with BHTOM.space Global Telescope Network
P.J. Mikolajczyk (U.Wroclaw/NCBJ, PL), L. Wyrzykowski (U.Warsaw/NCBJ, PL/EASST.eu), F.-J. Hambsch (ROAD Observatory, Ch…
Source Group: BHTOM
Keywords: Surveys, Transient, Supernova
Related Objects:
2025ahsa [ZTF25acjpvvr]
RA, DEC:14:35:00.210, +00:59:10.38
(218.750876, 0.986218)
Redshift:0.015
Type:SN Ia
See object 2025ahsa [ZTF25acjpvvr]
We report on the optical multiband photometric follow-up of a Type-I Supernova SN2025ahsa conducted with the BHTOM.space Global Telescope Network.
AstroNote 2026-22
Type: Object/s-Data/Analysis
Released: 2026-02-05 13:50:35
Photometric observations of a Galactic Nova ASASSN-25fd with BHTOM.space Global Telescope Network
P.J. Mikolajczyk (U.Wroclaw/NCBJ, PL), L. Wyrzykowski (U.Warsaw/NCBJ, PL/EASST.eu), F.-J. Hambsch (ROAD Observatory, Ch…
Source Group: BHTOM
Keywords: Photometry, Transient, Nova, Optical
We report on the optical multiband photometric follow-up of classical nova ASASSN-25fd conducted with the BHTOM.space Global Telescope Network.
AstroNote 2026-21
Type: Object/s-Data/Analysis
Released: 2026-02-04 16:28:19
Photometric follow-up of A Red Nova AT2025abao with BHTOM.space Global Telescope Network
P.J. Mikolajczyk (U.Wroclaw/NCBJ, PL), L. Wyrzykowski (U.Warsaw/NCBJ, PL/EASST.eu), K. Kotysz (U.Wroclaw/U.Warsaw, PL),…
Source Group: BHTOM
Related Objects:
2025abao
RA, DEC:00:38:48.558, +40:46:08.76
(9.702327, 40.769100)
Redshift:0
Type:LRN
See object 2025abao
We report on the optical multiband photometric follow-up of AT2025abao conducted with the BHTOM.space Global Telescope Network.
AstroNote 2026-9
Type: Object/s-Data/Analysis
Released: 2026-01-20 10:20:48
BHTOM photometry of SN 2025iek
P. Pessi (NCBJ), L. Wyrzykowski (NCBJ/OAUW), A. F. Gillan (NCBJ), P. Mikolajczyk (NCBJ/UWr), K. Kotysz (UWr/OAUW), on b…
Related Objects:
2025iek
RA, DEC:15:55:01.666, +03:56:55.66
(238.756942, 3.948794)
Redshift:0.1467
Type:SN IIn
See object 2025iek
We report two epochs of r and i band photometry of the transient 2025iek, which may be associated with an AGN flare rather than a supernova.
AstroNote 2025-350
Type: Object/s-Data/Analysis
Released: 2025-12-30 16:23:09
AMI-LA radio observation of the TDE 2025CYH
Nadav Shoval (HUJI) , Assaf Horesh (HUJI), Andrew Hughes(Oxford), Joe Bright (Oxford), Yirmi Bernstein (HUJI), Adam Lan…
Keywords: Transient, TDE, Radio
Related Objects:
2025cyh
RA, DEC:18:34:46.681, +31:50:05.25
(278.694506, 31.834790)
Redshift:0.105
Type:TDE
See object 2025cyh
We report the possible detection of the TDE 2025CYH with the radio telescope AMI-LA at 15.5 GHz.
AstroNote 2025-324
Type: Object/s-Data/Analysis
Released: 2025-11-18 12:02:11
LCO observations of AT 2025adje (ASASSN-25et), a bright supernova candidate in PGC 047292, at a redshift of z = 0.00796
P.G. Berdayes, J. Basurto Merino, A. Caballero-Almagro, A. Cerón, M. Contreras, F. Díaz-Segado, T. Ferrer-Laviña, B. Ga…
Source Group: ULL-ASTRO-MASTER
Keywords: Transient, Supernova, Optical
Related Objects:
2025adje [ASASSN-25et]
RA, DEC:13:28:48.662, +38:44:47.40
(202.202759, 38.746499)
Redshift:0.00796
Type:SN II
See object 2025adje [ASASSN-25et]
We report on Las Cumbres Observatory (LCO) observations of the bright supernova candidate AT 2025adje, discovered by ASAS-SN (ASASSN-25et) after seasonal break and located close to the galaxy PGC 047…
AstroNote 2025-322
Type: Object/s-Data/Analysis
Released: 2025-11-14 13:01:48
H.E.S.S. observations and upper limits on the very-high-energy gamma-ray emission of TDE 2025aarm
L. Mohrmann (MPIK) for the H.E.S.S. Collaboration
Keywords: TDE, Gamma Rays
Related Objects:
2025aarm
RA, DEC:04:32:12.399, -05:22:39.51
(68.051664, -5.377641)
Redshift:0.01368
Type:TDE
See object 2025aarm
We report very-high-energy gamma-ray upper limits obtained with the High Energy Stereoscopic System (H.E.S.S.) for the nearby TDE 2025aarm.
AstroNote 2025-318
Type: Object/s-Data/Analysis
Released: 2025-11-09 20:31:05
X-ray detection of the off-nuclear TDE 2025abcr using Swift
Xander J. Hall (CMU), Robert Stein (JSI), Raffaella Margutti (UC Berkeley), Ryan Chornock (UC Berkeley), Erica Hammerst…
Source Group: DESIRT
Keywords: Transient, TDE, Ultra-Violet, X-rays
Related Objects:
TDE2025abcr
RA, DEC:01:46:55.400, -15:22:15.71
(26.730831, -15.371032)
Redshift:0.05
Type:TDE-H-He
See object TDE2025abcr
Related Notes:
2025-317
2025-3182025-11-09 03:54:08
Title: ZTF Classification of ZTF25abxvhmk/AT 2025abcr as a likely offnuclear TDE, possibly from an IMBH, at z=0.05
Authors: R. Stein (JSI), J. Carney (UNC), I. Andreoni (UNC), R. Chor…
Source Group: ZTF
We report a Swift-XRT detection of X-ray emission from the off-nuclear IMBH–TDE candidate 2025abcr. The X-rays are luminous and ultrasoft, while contemporaneous Swift-UVOT photometry shows the source…
AstroNote 2025-316
Type: Object/s-Data/Analysis
Released: 2025-11-07 23:42:09
X-ray detection of the TDE 2025aarm using Chandra
J. Somalwar (UC Berkeley/KIPAC@Stanford), R. Chornock (UC Berkeley), R. Margutti (UC Berkeley), I. Sfaradi (UC Berkeley…
Related Objects:
2025aarm
RA, DEC:04:32:12.399, -05:22:39.51
(68.051664, -5.377641)
Redshift:0.01368
Type:TDE
See object 2025aarm
We report the detection of X-ray emission coincident with the nearby tidal disruption event TDE 2025aarm
AstroNote 2025-315
Type: Object/s-Data/Analysis
Released: 2025-11-07 21:47:53
Radio detection of TDE 2025aarm with the Very Large Array
Collin T. Christy (Arizona), Kate D. Alexander (Arizona), Noah Franz (Arizona), Tanmoy Laskar (Utah), Yvette Cendes (Or…
Keywords: TDE, Radio
Related Objects:
2025aarm
RA, DEC:04:32:12.399, -05:22:39.51
(68.051664, -5.377641)
Redshift:0.01368
Type:TDE
See object 2025aarm
Related Notes:
2025-311
2025-3152025-10-30 18:30:50
Title: Classification of AT 2025aarm as a Rising Nearby H+He TDE
Authors: Sara Faris (Tel Aviv University), Hugo Tranin (Universitat …
Source Group: StarDestroyers
,
2025-313
2025-3152025-11-02 04:38:19
Title: Radio upper limits from the TDE 2025aarm using the Allen Telescope Array
Authors: Itai Sfaradi (UC Berkeley), Erica Hammerstein (UC Berkeley)…
We report the detection of radio emission coincident with the nearby tidal disruption event TDE 2025aarm.
AstroNote 2025-313
Type: Object/s-Data/Analysis
Released: 2025-11-02 04:38:19
Radio upper limits from the TDE 2025aarm using the Allen Telescope Array
Itai Sfaradi (UC Berkeley), Erica Hammerstein (UC Berkeley), Ryan Chornock (UC Berkeley), Raffaella Margutti (UC Berkel…
Keywords: TDE, Radio
Related Objects:
2025aarm
RA, DEC:04:32:12.399, -05:22:39.51
(68.051664, -5.377641)
Redshift:0.01368
Type:TDE
See object 2025aarm
Related Notes:
2025-311
2025-3132025-10-30 18:30:50
Title: Classification of AT 2025aarm as a Rising Nearby H+He TDE
Authors: Sara Faris (Tel Aviv University), Hugo Tranin (Universitat …
Source Group: StarDestroyers
We report radio upper limits obtained at 5 and 8 GHz with the Allen Telescope Array for the nearby TDE 2025aarm.
AstroNote 2025-302
Type: Object/s-Data/Analysis
Released: 2025-10-20 19:05:56
Observations of the blue, rapidly-rising transient AT2025aarn
Rahul Jayaraman (Cornell), Xander J. Hall (CMU), Jacob Wise (LJMU), Anna Y. Q. Ho (Cornell), Zoe McGrath (LJMU), Aleksa…
Keywords: Optical, Spectroscopy, X-rays
Related Objects:
2025aarn [ZTF25abxjgzg]
RA, DEC:04:37:19.577, -08:46:35.95
(69.331570, -8.776654)
Redshift:0.01685
Type:SN II
See object 2025aarn [ZTF25abxjgzg]
We report photometry, spectroscopy, and X-ray observations of a rapidly rising (>3 mag/day) and blue optical transient.

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