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Spectroscopic Classification of ASASSN-16nm, ASASSN-16nn, ASASSN-16no and Gaia16bub/AT2016ice

ATel #9805; J. L. Prieto (UDP/MAS), B. F. Madore, B. J. Shappee, M. K. Seidel (Carnegie), S. Dong (KIAA-PKU), K. Z. Stanek (OSU)
on 29 Nov 2016; 20:03 UT
Credential Certification: Benjamin Shappee (bshappee@obs.carnegiescience.edu)

Subjects: Optical, Cataclysmic Variable, Supernovae, Transient

Optical spectra of the supernova candidates ASASSN-16nm/AT2016ijc (ATel #9785), ASASSN-16nn/AT2016ijf (ATel #9785), ASASSN-16no (ATel #9796, #9797), and Gaia16bub/AT2016ice were obtained on UT 2016 November 23-29 with WFCCD mounted on the du Pont 2.5-m telescope at Las Campanas Observatory. We cross-correlated the spectra with a library of supernova spectra using the "Supernova Identification" code (SNID; Blondin and Tonry 2007, Ap.J. 666, 1024) to help with SN type, phase, and redshift determination. The details of the classifications are as follows:

 
Name          | Spec UT Date | Disc.       | Spec. Type |     Redshift       | Phase | Comments   
----------------------------------------------------------------------------------------------- 
ASASSN-16nm   | Nov. 25.06   | ATel #9785  |   SN Ia    | 0.030685(host/NED) |  +8d  |    
ASASSN-16nn   | Nov. 25.02   | ATel #9785  |   SN Ia    | 0.0320(SN)         |  -1d  |    
ASASSN-16no   | Nov. 28.32   | ATel #9796  |   SN Ia    | 0.020708(host/NED) |  -2d  |    
AT2016ice     | Nov. 23.03   | GAIA alerts |   CV       | 0                  |   NA  | H lines at z=0