FLOYDS Classification of PSN J21431689+4334476 as a Young Type Ia Supernova
ATel #7771; G. Hosseinzadeh, C. McCully, S. Valenti, I. Arcavi, D. A. Howell (LCOGT/UCSB)
on 8 Jul 2015; 03:11 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Stefano Valenti (svalenti@lcogt.net)
We obtained a spectrum of PSN J21431689+4334476 (ATel #7767) on 2015 July 7.4 UT with the robotic FLOYDS instrument mounted on the Faulkes Telescope North. Using SNID (Blondin & Tonry 2007, ApJ, 666, 1024), we find a good fit to the Type Ia SN 2002bo 13 days before maximum light at a redshift consistent with that of the proposed host galaxy (z=0.019; Seeberger, Huchtmeier, & Weinberger 1994, A&A, 286, 17 via NED). The Si II 6355 and Ca II IR features are very broad, corresponding to expansion velocities in excess of 20,000 km/s. The continuum is also quite red, which is consistent with the measured foreground reddening of E(B-V) = 0.5 mag (Schlafly & Finkbeiner 2011, ApJ, 737, 103 via NED).
