TNS Classification Report No. 22770 [ 2026TNSCR.175....1A ]
Date Received (UTC): 2026-01-15 09:11:44 Sender: Jennifer Andrews
Group: PASSTA
Jennifer Andrews (Gemini-N/NOIRLab), A. P. Ravi (UC Davis), M. Shrestha (Monash U), Bhagya Subrayan (U of Arizona), Azalee Bostroem (U of Arizona), J. Pearson (U of Arizona), G. Hosseinzadeh (UCSD), D. J. Sand (U of Arizona), C. L. Ransome (U of Arizona), J. Carney (UNC Chapel Hill), and C. D. Kilpatrick (Northwestern U) on behalf of the PASSTA collaboration report/s a classification of object: SN 2026acd
Type: SN Ia
Remarks: We report the classification of SN 2026acd as a young SN Ia with very little reddening based on optical spectra obtained on UT 2026 Jan 15 using the GMOS spectrograph on Gemini-S. This target was classified using SNID (Blondin & Tonry 2007) and provided a best match to a normal type Ia about two weeks before maximum. We encourage follow-up spectroscopy. For more information on the Public AEON Spectroscopic Survey for Transient Astronomy (PASSTA), visit astro-passta.github.io or Astronote 2025-280.
The following Classification spectrum was provided:
Obsdate: 2026-01-15 06:58:10
Instrument: GMOS-S
Telescope: Gemini South
Details of the object and its spectra can be viewed here: https://www.wis-tns.org/object/2026acd
Date Received (UTC): 2026-01-15 09:11:44 Sender: Jennifer Andrews
Group: PASSTA
Jennifer Andrews (Gemini-N/NOIRLab), A. P. Ravi (UC Davis), M. Shrestha (Monash U), Bhagya Subrayan (U of Arizona), Azalee Bostroem (U of Arizona), J. Pearson (U of Arizona), G. Hosseinzadeh (UCSD), D. J. Sand (U of Arizona), C. L. Ransome (U of Arizona), J. Carney (UNC Chapel Hill), and C. D. Kilpatrick (Northwestern U) on behalf of the PASSTA collaboration report/s a classification of object: SN 2026acd
Type: SN Ia
Remarks: We report the classification of SN 2026acd as a young SN Ia with very little reddening based on optical spectra obtained on UT 2026 Jan 15 using the GMOS spectrograph on Gemini-S. This target was classified using SNID (Blondin & Tonry 2007) and provided a best match to a normal type Ia about two weeks before maximum. We encourage follow-up spectroscopy. For more information on the Public AEON Spectroscopic Survey for Transient Astronomy (PASSTA), visit astro-passta.github.io or Astronote 2025-280.
The following Classification spectrum was provided:
Obsdate: 2026-01-15 06:58:10
Instrument: GMOS-S
Telescope: Gemini South
Details of the object and its spectra can be viewed here: https://www.wis-tns.org/object/2026acd