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Discovery of a Supernova Candidate

ATel #2468; W. Zheng and F. Yuan (University of Michigan); J. Vinko (University of Szeged); R. Quimby (California Institute of Technology); D. Chamarro, M. D. Sisson, N. Whallon, C. Akerlof, and S. B. Pandey (University of Michigan); J. C. Wheeler and E. Chatzopoulos (University of Texas), on behalf of the ROTSE collaboration
on 9 Mar 2010; 10:26 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Jozsef Vinko (vinko@astro.as.utexas.edu)

Subjects: Optical, Supernovae, Transient

Referred to by ATel #: 2480

We report the discovery of a SN candidate, ROTSE3 J133033.0-313427, in unfiltered CCD images taken on March 07.04 UT with the 0.45-m ROTSE-IIIc telescope at the H.E.S.S. site in Namibia. The transient was detected at about 16.9 mag on both March 07.04 UT and March 08.03 UT from ROTSE-IIIc, and again on March 08.56 at mag about 17.0 from ROTSE-IIIa telescope at Siding Spring Observatory, Australia. The new object is located at RA= 13h30m33s.03, Dec= -31o34'26".8, which is 4.5" east and 8.2" north to the center of galaxy ESO 444-60 (z~0.04823 according to simbad). No source was detected at this location in the ROTSE-IIIc image (limit ~18.5 mag) before Feb. 26. A finding chart of the transient is posted at the following website URL: http://www.rotse.net/rsvp/j133033.0-313427/j133033.0-313427.jpg