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PSN J02062253-5201267 is a type Ia supernova in ESO 197-G24

ATel #7815; N. Morrell, C. Contreras, M. M. Phillips (LCO), S. Parker (BOSS), E. Y. Hsiao (Aarhus U) on behalf of the Carnegie Supernova Project
on 20 Jul 2015; 11:44 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Eric Hsiao (hsiao@lco.cl)

Subjects: Optical, Supernovae

PSN J02062253-5201267 was discovered by Stu Parker (BOSS collaboration) in the edge-on spiral galaxy ESO 197-G024 at a redshift of 0.0196 (NED). The optical spectroscopic observation (range 360-960 nm) of the supernova was obtained with the 2.5-m du Pont Telescope (+ WFCCD) at Las Campanas on Jul. 19.40 UT. The spectrum shows a type Ia supernova before maximum light. Cross correlation with a library of supernova spectra via the Supernova Identification tool, SNID (Blondin and Tonry 2007, ApJ, 666, 1024) suggests that the spectrum of J02062253-5201267 is similar to that of many normal type Ia supernovae around one week before maximum brightness, although good matches are also found with 91T-like events at a few days before maximum. Adopting for the host galaxy a recession velocity of 5882 km/s (Mathewson et al. 1992, ApJS, 81, 413, via NED) the minimum of the Si II 635.5-nm absorption is blueshifted by 9800 km/s.