TNS Classification Report No. 21526 [ 2025TNSCR2701....1P ]
Date Received (UTC): 2025-07-14 22:50:16 Sender: Kishore C. Patra
Group: UCSC
Kishore C. Patra, Ryan J. Foley (UCSC) report/s a classification of object: SN 2025orm
Type: SN Ia-91bg-likeRedshift: 0.056
Remarks: The spectrum is highly contaminated by galaxy light. SNID template fitting was performed after subtracting an SDSS host-galaxy template spectrum. The best-fit match was SN 1991bg at +16 days past peak brightness. The transient exhibits a red color at peak, an absolute B-band magnitude of approximately -18.4 mag, and a fast decline rate of Delta m15 (B) ~ 1.4 mag, all of which support a SN 1991bg-like subclassification.
The following Classification spectrum was provided:
Obsdate: 2025-07-03 00:00:00
Instrument: KAST
Telescope: 3m Lick Shane Reflector
Details of the object and its spectra can be viewed here: https://www.wis-tns.org/object/2025orm
Date Received (UTC): 2025-07-14 22:50:16 Sender: Kishore C. Patra
Group: UCSC
Kishore C. Patra, Ryan J. Foley (UCSC) report/s a classification of object: SN 2025orm
Type: SN Ia-91bg-likeRedshift: 0.056
Remarks: The spectrum is highly contaminated by galaxy light. SNID template fitting was performed after subtracting an SDSS host-galaxy template spectrum. The best-fit match was SN 1991bg at +16 days past peak brightness. The transient exhibits a red color at peak, an absolute B-band magnitude of approximately -18.4 mag, and a fast decline rate of Delta m15 (B) ~ 1.4 mag, all of which support a SN 1991bg-like subclassification.
The following Classification spectrum was provided:
Obsdate: 2025-07-03 00:00:00
Instrument: KAST
Telescope: 3m Lick Shane Reflector
Details of the object and its spectra can be viewed here: https://www.wis-tns.org/object/2025orm