MASTER OT J150210.65+230915.3 = CSS120514:150211+230915
ATel #4132; A. J. Drake
on 28 May 2012; 19:48 UT
Credential Certification: Andrew J. Drake (ajd@cacr.caltech.edu)
Subjects: Optical, A Comment, AGN, Supernovae, Transient
Podvorotniy et al. (2012, Atel#4131) recently announced the discovery of possible
supernova MASTER OT J150210.65+230915.3 detected on 2012-05-24.86818UT. The
location of this source matches CRTS transient CSS120514:150211+230915 discovered
on 2012-05-14.39UT and posted CRTS webpages and SkyAlert on 2012-05-14.
The location of the CRTS discovery (RA=15:02:10.56, Dec=+23:09:14.6) is consistent
with the location of possible galaxy SDSS J150210.47+230915.2, within astrometric
uncertainties.
The object exhibits some brightening in Catalina images beginning 2012-04-19 and
was initially classified as a possible AGN based on the slow rise, slight evidence
for past variability, and colour of the matching SDSS source.
The source was measured by CRTS with approximate dates and V magnitudes: Apr. 19, 20.2;
May 1, 19.8; May 14, 19.4; May 25, 19.2. No clear NVSS or FIRST radio sources are
seen at this location. Spectroscopic observations are required to determine the nature
of this event.
