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Spectroscopic classification of ASASSN-16pa as a normal Type Ia supernova

ATel #9900; N. Morrell, M. Phillips (Las Campanas Observatory), Benjamin J. Shappee (Hubble Fellow, Carnegie Observatories), Subo Dong (KIAA-PKU)
on 25 Dec 2016; 23:11 UT
Credential Certification: Benjamin Shappee (bshappee@obs.carnegiescience.edu)

Subjects: Optical, Supernovae

We report on an optical spectroscopic observation of supernova candidate ASASSN-16pa (ATel #9893, AT 2016izf) using the du Pont 2.5-m telescope (+ WFCCD) at Las Campanas Observatory on UT 2016-12-25.04. The target was discovered by the All-Sky Automated Survey for Supernovae (ASAS-SN; Shappee et al. 2014, ApJ, 788, 48). We used SNID (Blondin & Tonry, 2007, ApJ, 666, 1024) to identify the type and phase of the SN spectra.

The spectrum matches with SNe Ia-norm, few days before maximum (-1.3 +/- 4.7). SNID estimates z=0.034 (0.005).