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Spectroscopic Classification of PS15cwx as a Type Ia

ATel #8300; Charles Kilpatrick, Peter Milne, Jennifer Andrews, Nathan Smith (University of Arizona)
on 19 Nov 2015; 09:14 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Charles Kilpatrick (charlesk@email.arizona.edu)

Subjects: Optical, Supernovae, Transient

Referred to by ATel #: 8301

The AZTEC (Arizona Transient Exploration and Characterization) collaboration reports an optical spectrum of PS15cwx (ATEL #8299) obtained on UT 2015 Nov. 19.33 with the 2.3m Bok telescope (+ Boller & Chivens spectrograph) on Kitt Peak, Arizona. Cross-correlation using SNID (Blondin & Tonry 2007) finds good matches with SNe Ia-91T (e.g., SN 1999ac) before optical maximum and with a redshift near 0.046.