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

ATel #9899; N. Morrell, M. Phillips (Las Campanas Observatory), S. Bose, S. Dong (KIAA-PKU), B. J. Shappee (Hubble Fellow, Carnegie Observatories)
on 24 Dec 2016; 08:36 UT
Credential Certification: Subhash Bose (bose@pku.edu.cn)

Subjects: Optical, Supernovae

We report optical spectroscopic observation of supernova candidate ASASSN-16pd/2016jab (ATel #9898) using the du Pont 2.5-m telescope (+ WFCCD) at Las Campanas Observatory on UT 2016-12-24.24. 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. Narrow H_alpha emission is visible at z=0.021. The SNID estimated redshift (z=0.022) is consistent with this value.