TNS Astronomical Transient Report No. 286191 [ 2026TNSTR..71....1M ]
Date Received (UTC): 2026-01-09 13:52:15
Date made public:
Sender: ALeRCE
Reporting Group: ALeRCE Discovery Data Source: ZTF
A. Munoz-Arancibia, A. Mourao, F.E. Bauer, G. Pignata, F. Forster, J. Correa-Orellana, H. Kumar, S. Jurado, L. Hernandez-Garcia, L. Galbany, J. Silva-Farfan, R. Dastidar, J.P. Brandt, A. Alvarez, F. Andrades, G. Cabrera-Vives, R. Carrasco-Davis, P.A. Estevez, P. Huijse, H. Larranaga, C. Mansilla, K. Medina, D. Moreno, E. Munoz, I. Reyes, P. Sanchez-Saez, D. Rodriguez-Mancini, M. Catelan, S. Eyheramendy, M.J. Graham on behalf of the ALeRCE broker report/s the discovery of a new astronomical transient.
IAU Designation: AT 2026iw
Discoverer internal name: ZTF26aaaauzt
Coordinates (J2000): RA = 01:13:08.111 (18.28379500178) DEC = +19:34:30.06 (19.57501804192)
Discovery date: 2026-01-09 04:11:07.002 (JD=2461049.6743866)
Potential host galaxy: SDSS J011308.14+193430.5
Host redshift: 0.08892964
Remarks: Early SN candidate (g-rise > 0.09+-0.01 mag/day, r-rise > 0.11+-0.01 mag/day) classified using ALeRCE's stamp classifier (Carrasco-Davis et al. 2021) and the public ZTF stream. Discovery image and light curve in http://alerce.online/object/ZTF26aaaauzt
Photometry
Discovery (first detection):
Discovery date: 2026-01-09 04:11:07.002
Flux: 18.8935 ABMag
Filter: g-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin
Remarks: Data provided by ZTF
Last non-detection:
Last non-detection date: 2025-12-22 03:29:19
Limiting flux: 20.7248 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin
Remarks: Data provided by ZTF
Details of the new object can be viewed here: https://www.wis-tns.org/object/2026iw
Date Received (UTC): 2026-01-09 13:52:15
Date made public:
Sender: ALeRCE
Reporting Group: ALeRCE Discovery Data Source: ZTF
A. Munoz-Arancibia, A. Mourao, F.E. Bauer, G. Pignata, F. Forster, J. Correa-Orellana, H. Kumar, S. Jurado, L. Hernandez-Garcia, L. Galbany, J. Silva-Farfan, R. Dastidar, J.P. Brandt, A. Alvarez, F. Andrades, G. Cabrera-Vives, R. Carrasco-Davis, P.A. Estevez, P. Huijse, H. Larranaga, C. Mansilla, K. Medina, D. Moreno, E. Munoz, I. Reyes, P. Sanchez-Saez, D. Rodriguez-Mancini, M. Catelan, S. Eyheramendy, M.J. Graham on behalf of the ALeRCE broker report/s the discovery of a new astronomical transient.
IAU Designation: AT 2026iw
Discoverer internal name: ZTF26aaaauzt
Coordinates (J2000): RA = 01:13:08.111 (18.28379500178) DEC = +19:34:30.06 (19.57501804192)
Discovery date: 2026-01-09 04:11:07.002 (JD=2461049.6743866)
Potential host galaxy: SDSS J011308.14+193430.5
Host redshift: 0.08892964
Remarks: Early SN candidate (g-rise > 0.09+-0.01 mag/day, r-rise > 0.11+-0.01 mag/day) classified using ALeRCE's stamp classifier (Carrasco-Davis et al. 2021) and the public ZTF stream. Discovery image and light curve in http://alerce.online/object/ZTF26aaaauzt
Photometry
Discovery (first detection):
Discovery date: 2026-01-09 04:11:07.002
Flux: 18.8935 ABMag
Filter: g-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin
Remarks: Data provided by ZTF
Last non-detection:
Last non-detection date: 2025-12-22 03:29:19
Limiting flux: 20.7248 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin
Remarks: Data provided by ZTF
Details of the new object can be viewed here: https://www.wis-tns.org/object/2026iw