A persistent flaring transient from CRTS
ATel #1741; A. Mahabal, A. J. Drake, S. G. Djorgovski, R. Williams, M. J. Graham (Caltech); E. C. Beshore, S. M. Larson, R. Hill (LPL/UA); M. Catelan (PUC); E. Christensen (Gemini Observatory);
on 26 Sep 2008; 00:16 UT
Distributed as an Instant Email Notice Request For Observations
Credential Certification: Ashish Mahabal (aam@astro.caltech.edu)
Subjects: Optical, Request for Observations, Transient
CSS080924:233423+391423 is a transient discovered by CRTS on 24 Sep 2008 UT
03:50:32. The discovery images indicated flaring on a scale of minutes with
the four 30 second images separated by 10 minutes registering V magnitudes of
19.8, 19.4, 18.2 and 19.4. Combined CSS images from the past do not reveal any
source at that location. There is a barely visible source in N band DPOSS
plate (near-IR) but no source is visible in 2MASS or other DPOSS plates.
Subsequent imaging at the Palomar 60-inch telescope yields magnitudes of 18.6,
18.4, 18.0 and 18.9 in Gunn g, r, i and z bands respectively (25 Sep 2008 UT
02:55:27).
The nature of this object is not clear since despite the flaring and fading it
has persisted for 24 hours. Further observations are requested.
A finding chart and discovery images can be found at:
http://voeventnet.caltech.edu/feeds/ATEL/CSS/809241381024159941.atel.html
CRTS optical transients are detected and published as VOEvents in real-time at
http://voeventnet.org/feeds/Catalina.shtml
