Classification of Supernovae from CRTS
ATel #4597; M. J. Graham, T-C. Yang, A. J. Drake, A. A. Mahabal, S. G. Djorgovski (Caltech); J. Prieto (Princeton); M. Catelan (PUC Chile); E. Christensen, S. M. Larson, E. C. Beshore (LPL/UA)
on 22 Nov 2012; 06:24 UT
Credential Certification: Andrew J. Drake (ajd@cacr.caltech.edu)
Subjects: Optical, Supernovae, Transient
Further to ATel#4595, here we report the classification of CRTS
optical transients observed with the Palomar 5m+DBSP on Nov 19th UT.
The spectra were cross-correlated using SNIDs software (Blondin and Tonry 2007, ApJ,
666, 1024). The following results were found:
| CRTS ID | SN Type | Spec Match | z | Note |
|---|
| MLS121112:083604+152852 | Ia | SN1990N | 0.090 | a |
| CSS121113:091919+171410 | IIn | | 0.065 | |
| CSS121114:090202+101800 | Ia | SN2002er | 0.042 | |
| MLS121115:080653+231239 | Ia | SN1994S | 0.15 | |
Notes:
(a) the spectrum of this source exhibits strong narrow [OII] and [OIII] along with
Balmer lines suggesting that significant star formation is occurring in the host galaxy.
All the type-Ia spectra appear to be near maximum light.
Further info about these sources is available via the CRTS website (crts.caltech.edu) as well as
in ATEL#
4595.
