Spectroscopic Classification of the Type Ia Supernova LSQ14asu

ATel #6056; E. S. Walker (Yale), E. Hadjiyska (Yale), D. Rabinowitz (Yale), C. Baltay (Yale), N. Ellman (Yale), R. McKinnon (Yale), U. Feindt (U. Bonn), P. Nugent (LBNL/UCB), Mark Phillips (LCO), Nidia Morrell (LCO), Eric Hsiao (LCO)
on 9 Apr 2014; 17:58 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Emma Walker (emma.walker@yale.edu)

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We report the spectroscopic classification of a La Silla-QUEST (LSQ) supernova (see Baltay et al. 2013, PASP, 125, 683) taken using WFCCD on the 2.5-m du Pont Telescope as part of the Carnegie Supernova Survey. LSQ14asu was discovered on 3 April 2014 with a V-band magnitude of 19.1 at RA=11:11:35.94 Dec=-21:27:59.7. An examination of earlier images of the same field shows detection of the source as early as 27 March 2014. It is located in the galaxy 2MASX J11113635-2127597 which has a known redshift of 0.0684. A spectrum obtained on 7 April 2014 shows the object to be a Type Ia supernova and cross-correlation with the "Supernova Identification" code (SNID; Blondin and Tonry 2007, ApJ, 666, 1024) reveals the best matches to be normal Type Ia supernovae around maximum light.