Showing results 1 to 12 out of 12
AstroNote 2025-176
Type: Object/s-Discovery/Classification
Released: 2025-06-06 21:48:01
NOT spectroscopic classifications of optical transients
Gerard García Moreno, Mathias Gort, Nadejda Blagorodnova (ICCUB), John A. Paice (Durham), Marco A. Gómez-Muñoz, Hugo T…
Source Group: BlackGEM
Keywords: Cataclysmic Variable, Microlensing, Supernova
Related Objects:
2020nkz [Gaia20cxx]
RA, DEC:16:04:10.560, +14:56:18.35
(241.044000, 14.938431)
Redshift:0
Type:CV
See object 2020nkz [Gaia20cxx]
,
2025iww [ZTF25aaoqyej]
RA, DEC:14:56:15.269, -05:54:37.35
(224.063621, -5.910376)
Redshift:0.1
Type:SN Ia
See object 2025iww [ZTF25aaoqyej]
,
2025kha [ZTF25aaptvbh]
RA, DEC:14:54:53.363, +05:30:04.21
(223.722345, 5.501170)
Redshift:0.06
Type:SN II
See object 2025kha [ZTF25aaptvbh]
,
2025koz [ZTF25aaqocue]
RA, DEC:16:09:17.649, +09:40:46.49
(242.323537, 9.679582)
Redshift:0.1
Type:SN Ic-BL
See object 2025koz [ZTF25aaqocue]
,
2025lji [KATS25K010]
RA, DEC:22:50:29.060, +65:19:23.30
(342.621083, 65.323139)
Redshift:
Type:
See object 2025lji [KATS25K010]
,
2025ljk [KATS25K012]
RA, DEC:18:24:05.340, -22:33:35.20
(276.022250, -22.559778)
Redshift:0
Type:
See object 2025ljk [KATS25K012]
,
2025ljt [ZTF25aardghz]
RA, DEC:16:53:20.693, -08:25:32.30
(253.336220, -8.425638)
Redshift:0
Type:CV
See object 2025ljt [ZTF25aardghz]
,
2025lsf [GOTO25dad]
RA, DEC:14:27:59.667, +05:38:49.76
(216.998612, 5.647155)
Redshift:0.05
Type:SN II
See object 2025lsf [GOTO25dad]
,
2025lyx [ZTF25aarzkbz]
RA, DEC:20:59:34.251, -17:44:31.49
(314.892711, -17.742080)
Redshift:
Type:
See object 2025lyx [ZTF25aarzkbz]
We report the spectroscopic classification with NOT/ALFOSC of 9 optical transients. 3 CVs, 1 SN Ia, 1 SN Ic-BL, 2 SN II, 1 featureless continuum, and 1 Microlensing event.
AstroNote 2024-197
Type: Object/s-Data/Analysis
Released: 2024-07-16 04:49:08
AT 2024nqr / ZTF24aauekqv and AT 2024pgd / ZTF24aauywft, two ongoing transients towards a z = 0.089 galaxy
A. Munoz-Arancibia (MAS/CMM), on behalf of the ALeRCE broker
Source Group: ZTF
Keywords: Transient, Lensing
Related Objects:
2024nqr [ZTF24aauekqv]
RA, DEC:15:12:27.278, +32:32:44.54
(228.113659, 32.545705)
Redshift:
Type:
See object 2024nqr [ZTF24aauekqv]
,
2024pgd [ZTF24aauywft]
RA, DEC:15:12:26.332, +32:32:44.29
(228.109717, 32.545636)
Redshift:
Type:
See object 2024pgd [ZTF24aauywft]
We report on two ongoing transient events separated by ~12 arcsec, towards Seyfert 2 galaxy 2MASX J15122674+3232460, the brightest member of a group at z = 0.089. Follow-up observations of these tran…
AstroNote 2023-199
Type: Object/s-Discovery/Classification
Released: 2023-07-11 02:09:14
Discovery of A Highly Magnified Transient at Redshift z = 3.78 in GLASS JWST NIRISS Imaging
Wenlei Chen (UMN), Patrick Kelly (UMN), Tommaso Treu (UCLA), Eros Vanzella (INAF), Marco Castellano (INAF), Amata Mercu…
Keywords: Transient, Microlensing, Lensing
Related Objects:
2023mlz
RA, DEC:00:14:22.480, -30:24:38.70
(3.593666, -30.410750)
Redshift:
Type:
See object 2023mlz
We report the discovery of a highly magnified transient (AT 2023mlz) in an arc at redshift z=3.784 in GLASS (PI: Treu) NIRISS observations of the Abell 2744 galaxy-cluster field taken on 2023 July 7.
AstroNote 2023-96
Type: Object/s-Discovery/Classification
Released: 2023-04-21 22:39:42
SN H0pe: three images of a SN detected near the central region of the galaxy cluster field PLCK G165.7+67.0
Brenda Frye (UArizona), Massimo Pascale (UC Berkeley), Seth Cohen (ASU), Jake Summers (ASU), Nicholas Foo (UArizona/ASU…
Keywords: Galaxy Cluster, Supernova, Lensing, Time-domain, Cosmology, Infra-Red, Transient
Related Objects:
PLCK G165.7+67.0 [G165 b]
RA, DEC:00:00:00.000,
(0.000000, 0.000000)
Redshift:
Type:
PLCK G165.7+67.0 [G165 b]
We discovered a new transient in James Webb Space Telescope NIRCam imaging in the field of a massive galaxy cluster.
AstroNote 2022-260
Type: Object/s-Discovery/Classification
Released: 2022-12-08 03:51:13
A Transient in JWST DD NIRCam Imaging of Abell 2744 Galaxy-Cluster Field
Wenlei Chen (UMN), Patrick Kelly (UMN), Tom Broadhurst (UPV/DIPC), Marco Castellano (INAF - Osservatorio Astronomico di…
Keywords: Microlensing, Transient, Galaxy Cluster
Related Objects:
2022acfv
RA, DEC:00:14:19.567, -30:23:52.32
(3.581531, -30.397866)
Redshift:2.7
Type:
See object 2022acfv
Related Notes:
2022-257
2022-2602022-12-02 03:22:52
Title: Transient Candidates in JWST DD NIRCam Imaging of Abell 2744 Galaxy-Cluster Field
Authors: Wenlei Chen (UMN), Patrick Kelly (UMN), Marco Castellano (I…
We report the detection of a new transient in NIRCam imaging of the Abell 2744 galaxy-cluster field taken on December 6, 2022 (UT) by the JWST DDT program 2756 (PI: Wenlei Chen). The transient was de…
AstroNote 2022-257
Type: Object/s-Discovery/Classification
Released: 2022-12-02 18:41:59
Transient Candidates in JWST DD NIRCam Imaging of Abell 2744 Galaxy-Cluster Field
Wenlei Chen (UMN), Patrick Kelly (UMN), Marco Castellano (INAF - Osservatorio Astronomico di Roma), Jose Diego (IFCA, C…
Keywords: Galaxy Cluster, Supernova, Microlensing
Related Objects:
2022acfu
RA, DEC:00:14:22.751, -30:23:50.38
(3.594797, -30.397328)
Redshift:0.949
Type:
See object 2022acfu
,
2022acfv
RA, DEC:00:14:19.567, -30:23:52.32
(3.581531, -30.397866)
Redshift:2.7
Type:
See object 2022acfv
We report on the detection of two new transients in NIRCam imaging of the Abell 2744 galaxy-cluster field taken on October 20, 2022 (UT) by JWST DDT program 2756 (PI: Wenlei Chen). A first transient …
AstroNote 2022-196
Type: Object/s-Data/Analysis
Released: 2022-09-22 17:23:17
Multiple Images of SN 2022qmx (“SN Zwicky”) Resolved in HST Observations
Justin Pierel (STScI), Lou Strolger (STScI), Jens Hjorth (University of CopenHagen), Ismael Perez-Fournon (IAC and ULL)…
Keywords: Lensing, Supernova
Related Objects:
2022qmx
RA, DEC:17:35:44.328, +04:49:56.86
(263.934702, 4.832460)
Redshift:0.35
Type:SN Ia
See object 2022qmx
Related Notes:
2022-180
2022-1962022-08-25 02:38:37
Title: SN Zwicky (SN2022qmx): a Strongly Lensed Type Ia at z=0.35 discovered by ZTF
Authors: Authors: A.Goobar (OKC, Stockholm U), J.Johansson (OKC), S…
Source Group: ZTF
The 4 images of gravitationally lensed SNIa 2022qmx (aka “SN Zwicky”; Goobar et al. AstroNote 2022-180) are resolved in HST observations from GO program 16264 (PI: Pierel). The data include F475W, F6…
AstroNote 2022-194
Type: Object/s-Data/Analysis
Released: 2022-09-21 21:53:42
Keck NIRC2+LGS Imaging Observations of SN 2022qmx (“SN Zwicky”)
C. Fremling, W. Meynardie, Lin Yan (Caltech), M. Salama, Jensen-Clem (UCSC)
Source Group: ZTF
Keywords: Supernova, Lensing, Infra-Red
Related Objects:
2022qmx [ZTF22aaylnhq]
RA, DEC:17:35:44.328, +04:49:56.86
(263.934702, 4.832460)
Redshift:0.35
Type:SN Ia
See object 2022qmx [ZTF22aaylnhq]
Related Notes:
2022-180
2022-1942022-08-25 02:38:37
Title: SN Zwicky (SN2022qmx): a Strongly Lensed Type Ia at z=0.35 discovered by ZTF
Authors: Authors: A.Goobar (OKC, Stockholm U), J.Johansson (OKC), S…
Source Group: ZTF
Keck II observations in J and Ks bands of the strongly lensed Type Ia SN 2020qmx ("SN Zwicky"; Goobar et al. AstroNote 2022-180) show that SN Zwicky is multiply lensed with 4 images of the supernova …
AstroNote 2022-188
Type: Object/s-Discovery/Classification
Released: 2022-09-06 20:27:41
Likely Supernova at z > 1 in the MACS J0257.1-2325 Galaxy-Cluster Field
Patrick Kelly, Masamune Oguri, Adi Zitrin, Jose Diego, Anton Koekemoer
Keywords: Supernova, Galaxy Cluster, Lensing
Related Objects:
2022tqq
RA, DEC:02:57:09.392, -23:26:23.83
(44.289133, -23.439952)
Redshift:
Type:
See object 2022tqq
AstroNote 2022-180
Type: Object/s-Discovery/Classification
Released: 2022-08-25 02:41:41
SN Zwicky (SN2022qmx): a Strongly Lensed Type Ia at z=0.35 discovered by ZTF
Authors: A.Goobar (OKC, Stockholm U), J.Johansson (OKC), S.Dhawan (Cambridge), S.Schulze (OKC), N.Arendse (OKC), A.Sagu…
Source Group: ZTF
Keywords: Supernova, Lensing
Related Objects:
2022qmx [ZTF22aaylnhq]
RA, DEC:17:35:44.328, +04:49:56.86
(263.934702, 4.832460)
Redshift:0.35
Type:SN Ia
See object 2022qmx [ZTF22aaylnhq]
We report the first Zwicky Transient Facility detection of a strongly gravitationally lensed Type Ia supernova.
AstroNote 2022-169
Type: Object/s-Discovery/Classification
Released: 2022-08-17 03:10:38
Strongly Lensed SN in MACS 2129 Galaxy-Cluster Field
Patrick Kelly (UMN), Adi Zitrin (Ben Gurion), Masamune Oguri (Chiba), Jose Diego (Cantabria), Hayley Williams (UMN), To…
Keywords: Supernova, Galaxy Cluster, Time-domain, Lensing
Related Objects:
2022riv
RA, DEC:21:29:40.212, +00:05:24.18
(322.417549, 0.090050)
Redshift:
Type:
See object 2022riv
AstroNote 2021-231
Type: Object/s-Data/Analysis
Released: 2021-09-02 09:29:26
Observations of lensed supernova candidate AT 2021vkz (ZTF21abqoivk) with the Liverpool Telescope
Dan Ryczanowski (University of Birmingham), Graham P. Smith (University of Birmingham), Matt Nicholl (University of Bir…
Keywords: Supernova, Lensing, Photometry
Related Objects:
2021vkz [ZTF21abqoivk]
RA, DEC:23:03:27.102, +07:56:33.55
(345.862924, 7.942652)
Redshift:0.15
Type:SN Ia
See object 2021vkz [ZTF21abqoivk]
Imaging observations of strong gravitationally-lensed supernova candidate AT 2021vkz (ZTF21abqoivk) with the Liverpool Telescope.

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Classification of SN 2020jfo (ZTF20aaynrrh) as a young Type II supernova
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SN 2023tyk: discovery to spectroscopic classification performed fully automatically
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Onset of SN 2023ixf observed over East Asian longitudes
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Released: 2019-12-31
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ePESSTO+ re-classification of AT2019xis as a light echo of SN 1987A in the LMC.
S. Taubenberger (MPA), D. Malesani (DTU Space), G. Terreran (Northwestern), S. J. Smartt (QUB), A. …
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Released: 2020-06-25
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AstroNote 2020-70
Released: 2020-03-30
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Fast Radio Bursts (FRBs) now reported to and distributed via the TNS
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