Spectroscopic Classifications with the SNIFS spectrograph on the UH88-inch Telescope
ATel #16256; P. Matheson, K. Miyakawa, M. Newland, T. Ogawa, X. Tablit, A. Unger, E. Ward, M. Woods, N. E. Drakos (UH Hilo), J. T. Hinkle, W. B. Hoogendam, M. E. Huber, B. J. Shappee (IfA, UH Manoa), M. A. Tucker (OSU), D. O. Jones (Gemini Observatory/NOIRLab)
on 27 Sep 2023; 01:01 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: David Jones (david.jones@ucsc.edu)
Subjects: Optical, Supernovae, Transient
We report the following classifications from spectroscopic observations with the SNIFS spectrograph on the UH88 telescope, obtained on 2023 September 25 UT through the SCAT survey (Tucker et al. 2022). The targets were supplied by ATLAS, ZTF, MASTER, and GW-MMADS and classified by students in the UH Hilo Stellar Physics Lab course. The classifications were performed with SNID (Blondin & Tonry, 2007).
Name | IAU Name | RA (J2000) | Dec (J2000) | z | Type | Phase | Notes
ZTF23abfpegt | AT2023tde | 17:42:28.946 | +39:19:06.98 | | SN | | (1)
ATLAS23sxs | AT2023tjn | 22:34:29.059 | -22:26:08.38 | 0.05 | SNIax | near peak | (2)
MASTER OT J221627.63-202725.6 | AT2023tju | 22:16:27.630 | -20:27:25.60 | 0.000 | CV | | (3)
ATLAS23szb | AT2023tky | 00:06:16.858 | +35:11:11.42 | 0.047 | SN Ia | pre-peak | (4)
ATLAS23tbz | AT2023tml | 23:45:16.226 | -26:03:13.34 | 0.053 | SN Ia | | (5)
ZTF23abghttj | AT2023tnc | 23:12:21.562 | -22:07:36.20 | 0.051 | SNII | | (6)
T202309242227531m301335 | AT2023tot | 22:27:53.070 | -30:13:34.75 | 0.06 | SNIa | near peak | (7)
Notes:
When the redshift is given to 2 decimal places, it is derived from the SN spectrum. Otherwise, the redshift is determined from the host galaxy. (1) Featureless blue continuum. (2) The best-match SNID template is SN 2008A at peak. We measure a Si II 6355 velocity of -6,200 km/s. (3) Coordinates are coincident with V* II Aqr, a cataclysmic binary. (4) The best SNID match is SN 2006lf with phase 7 days before maximum light. We measure a Si II 6355 velocity of -11,300 km/s. (5) The best fit SNID match is SN 2003ic with phase +3 days after maximum light, but the light curve suggests an earlier phase. We measure a Si II 6355 velocity of -12,000 km/s. (6) Redshift measured from H-alpha line in the SN. (7) The best-fit SNID template is 2006az at 1 day before maximum light. We measure a Si II 6355 velocity of -11,400 km/s.
