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A.J. Drake, S.G. Djorgovski, A.A. Mahabal, M.J. Graham, R. Williams, C. Donalek (Caltech); J. Prieto (Carnegie Obs); M. Catelan (PUC); E. Christensen (Gemini Obs); E.C. Beshore, S.M. Larson (LPL/UA); R.H. McNaught (ANU).

ATel #3118; Gemini confirmation of supernovae discovered by CRTS
on 22 Jan 2011; 18:35 UT
Credential Certification: Andrew J. Drake (ajd@cacr.caltech.edu)

Subjects: Optical, Supernovae, Transient

Referred to by ATel #: 3126

Further to ATel#3097, we report the Gemini North and South spectroscopic confirmation of supernovae discovered by CRTS between 2010-12-15 and 2011-01-17.

IDDisc. Date RA Dec type z
CSS110114:091354-170039 2011-01-14 09:13:54.05 -17:00:39.3 IIn 0.06
CSS110114:095830-105315 2011-01-14 09:58:30.13 -10:53:15.4 IIp 0.02
CSS110105:091911+394229 2011-01-05 09:19:11.45 39:42:29.2 Ia 0.09
MLS110105:022545+161256 2011-01-05 02:25:44.80 16:12:56.1 IIn 0.08
CSS101213:015021-214432 2010-12-13 01:50:21.32 -21:44:31.8 Ic 0.09
CSS101113:030504-194039 2010-11-13 03:05:03.56 -19:40:38.8 Ia 0.04

The host galaxy of CSS101113:030504-194039 is not seen in DSS or Palomar Quest 
coadd images reaching V ~ 22, but is clearly seen in deep archival CFHT megaprime  
images. Based on the SNID fit redshift, the host galaxy has Mi~-12.7 and Mg~-13.0.  
The host galaxy is therefore an intrinsically faint galaxy consistent with many  
similar SN hosts observed by CRTS (e.g. ATel#2447, ATel#1950, ATel#1860, ATel#1856). 
CSS110114:091354-170039 and CSS101213:015021-214432 are relatively luminous SNe  
having Mv < -19.7.  

More information about CRTS and links to discovery data from other telescopes can be found at http://crts.caltech.edu/.