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Spectroscopic Classification of CRTS Supernovae

ATel #4985; A. A. Mahabal, A. J. Drake, S. G. Djorgovski, M. J. Graham, R. Williams (Caltech) ; J. Prieto (Princeton); M. Catelan (PUC Chile); E. Christensen, S. M. Larson (LPL/UA)
on 16 Apr 2013; 20:28 UT
Credential Certification: Andrew J. Drake (ajd@cacr.caltech.edu)

Subjects: Optical, Supernovae, Transient

Referred to by ATel #: 5054

Further to ATel#4984, here we report the classification of CRTS supernova candidates using Palomar 5m+DBSP on 2013 Apr 14 UT. Classifications were performed via SN spectrum cross correlation using SNIDs (Blondin & Tonry, 2007, ApJ, 666, 1024).

 
   CRTS Detection ID      Type     z     Phase    Spec Match 
------------------------------------------------------------- 
CSS130413:130441+315257    Ia    0.17      +5        2003du 
CSS130413:163836+260935    Ia    0.14       0        1999ee 
CSS130401:173433+434219    Ia    0.035    +40        1994ae  
 
Notes: 
An uncatalogued source is visible in SDSS images matching the location of  
CSS130401:173433+434219. We estimate that this source has r~22.5. Given  
the approximate redshift of the SN derived from the spectrum match, the  
host galaxy is likely an intrinsically faint dwarf with Mr ~ -13.5. 
Links to all CRTS transients can be found at http://crts.caltech.edu/.