Spectroscopic Classification of PS15bln as a Type Ia supernova near maximum light
ATel #7867; A. S. Piascik, I. A. Steele (Liverpool JMU)
on 3 Aug 2015; 09:11 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Iain Steele (iainsteele@mac.com)
Subjects: Optical, Supernovae, Transient
We conducted a spectroscopic observation of transient PS15bln at 2015-08-01T22:01:48 UT. This transient was identified by the Pan-STARRS Survey for Transients (PSST) in ATel #7857 with a discovery date 2015-07-25.
A spectrum was obtained 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 Ia supernova. We find a close match match with SN2006kf at +1 day post-maximum with an estimated red-shift of z=0.038. The velocity of the ejecta estimated from the Si II absorption feature at 635.5 nm is ~11,000 km/s.
Liverpool Telescope
