Classifications of PSN J03034759+0024146 and CSS141123:091002+521856
ATel #6757; I. Shivvers and A. V. Filippenko (University of California, Berkeley)
on 26 Nov 2014; 18:43 UT
Credential Certification: Isaac Shivvers (ishivvers@berkeley.edu)
Subjects: Optical, Supernovae
We report the spectral classification of two optical transients. Spectra of these objects (range 330-1000 nm) were obtained on November 26 UT with the 3-m Shane reflector (+ Kast) at Lick Observatory.
PSN J03034759+0024146 is a normal Type Ia supernova approximately one week past maximum light, at a redshift of roughly 0.04 (measured from supernova features), with a Si II 635.5 nm line velocity of 10,900 km/s. CSS141123:091002+521856 is a normal Type Ia supernova within a few days after maximum light. Located at a redshift of 0.0405 (measured from narrow host-galaxy emission lines, in good agreement with the redshift measured from supernova features), it exhibits a Si II 635.5 nm line velocity of 11,500 km/s. Identifications were performed by cross-correlation with a library of supernova spectra using the "SuperNova IDentification" code (SNID; Blondin & Tonry 2007, ApJ, 666, 1024).
