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
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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/.