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Confirmation of CRTS Supernovae

ATEL # 2043; A.J. Drake, S.G. Djorgovski, A.A. Mahabal, M.J. Graham, R. Williams (Caltech); Myers, A. (UIUC), M. Catelan (PUC); E.C. Beshore, S.M. Larson (LPL/UA); E. Christensen (Gemini Observatory);
on 2 May 2009; 3:03 UT
Password Certification: Andrew J. Drake (

Subjects: Optical, Nova, Supernova, Transients

We report on the classification of SNe discovered by CRTS:

CRTS ID Detection DateRADecZTypeATel
CSS090422:150104+431313 2009-04-22 15:01:04.03 43:13:13.9 0.09 IaATEL#2029
CSS090421:133609+340319 2009-04-21 13:36:09.45 34:03:19.0 0.04 II-pATEL#2029
CSS090421:164926+055248 2009-04-21 16:49:25.67 05:52:48.1 0.05 Ianew
CSS090418:132440+163405 2009-04-18 13:24:40.14 16:34:05.5 0.03 II-pnew
CSS090417:133946-212719 2009-04-17 13:39:46.36 -21:27:19.1 0.06 Ia-91bgnew

CSS090422:150104+431313 and CSS090421:133609+340319 were spectroscopically confirmed by Moskvitin et al. (the GRB follow-up team) with the BTA 6m on Apr 23rd. CSS090421:164926+055248, CSS090418:132440+163405 and CSS090417:133946-212719 were confirmed using the Palomar 5m on Apr. 29th.

Further to ATEL#2037, this event was independent discovered by CRTS on Apr 25 UT and automatically posted as a VOEvent ( alert.

For finding charts, discovery images, lightcurves, etc., visit ( Current candidate and confirmed SNe can be found here.

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R. E. Rutledge , Editor
ATEL Mirror v1.0 Updates