Spectroscopic Classification of AT2016cvw as a normal Type Ia Supernova
ATel #9173; D. C. Leonard (San Diego State University), P. Sheehan, D. McCarthy (University of Arizona), K. Follette (Stanford University), J. Moustakas (Siena College), M. Alaniz, C. Beaumont, T. Batterman, E. Black, T. Bowers, M. Cryder, C. Davis, R. Dawsey, E. Douglas, S. Gordon, S. Gramze, M. Greiner, K. Hart, A. Holt, J. Hu, C. Ingebretsen, D. Iyer, R. Josephson, A. Kapko, J. Keane, T. Kimberlin, S. Kinman, J. Klusmeyer, E. Kolderup, K. Kresina, M. Madden, E. Meiman, S. Miniconi, A. Morton, K. Neumann, T. Noguerra, B. Regester, J. Regester, M. Rosenthal, A. Schlingman, W. Schlingman, W. Schlingman, A. Smith, B. Svoboda, L. Watson, R. Whitesell (2016 Advanced Teen Astronomy Camp)
on 20 Jun 2016; 17:52 UT
Credential Certification: D. C. Leonard (dleonard@mail.sdsu.edu)
Subjects: Optical, Supernovae
We report spectroscopic classification of AT2016cvw (also known as PTSS-16ipw), discovered 2016 June 18.813 UT by the PMO-Tsinghua Supernova Survey (PTSS) in MCG +02-58-008 (z=0.038877; Huchra et al. 2012, ApJS, 199, 26, via NED), through inspection of an optical spectrum (range 370-690 nm, resolution 0.8 nm) obtained with the 2.3-m Bok telescope (+ Boller & Chivens spectrograph) at Kitt Peak on 2016 June 20.423 UT. Cross-correlation with a library of supernova spectra using the "Supernova Identification" code (SNID; Blondin and Tonry 2007, ApJ, 666, 1024) and GELATO (Harutyunyan et al. 2008, A&A, 488, 383) finds convincing spectral matches with a number of normal Type-Ia supernovae roughly 3 days before maximum light. We derive an expansion velocity of 11,290 km/s from the position of the Si-II (rest 635.5 nm) minimum.
