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Classification of PS15bpa as a post maximum Type II supernova

ATel #7884; A. S. Piascik, I. A. Steele (Liverpool JMU)
on 7 Aug 2015; 09:51 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Iain Steele (iainsteele@mac.com)

Subjects: Optical

We conducted a spectroscopic observation of transient PS15bpa at 2015-08-06T22:11:16 UT. This transient was identified by the Pan-STARRS Survey for Transients (PSST) in ATel #7876 with a discovery date 2015-08-01. A spectrum was obtain in the visible, 400-800nm, with resolution R~350, using the SPRAT spectrograph on the Liverpool Telescope located at Roque de los Muchachos. Classification using SNID (Blondin and Tonry 2007, ApJ, 666, 1024) indicates it is a type II supernova. The red-shift estimated by SNID is z=0.023 , a close match to the proposed host galaxy UGC 11445, z=0.0238. We find the closest match to be with SN1979C at +43 days post maximum but caution that matches with other type II spectra indicated ages from +7 to +47 days.

Liverpool Telescope