CRTS Supernova Candidates
ATel #1823; A. J. Drake, M. J. Graham, S. G. Djorgovski, A. Mahabal, R. Williams (Caltech); M. Catelan (PUC); E. C. Beshore, S. M. Larson, R. Hill (LPL/UA); E. Christensen (Gemini Observatory)
on 30 Oct 2008; 17:31 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Andrew J. Drake (ajd@cacr.caltech.edu)
Subjects: Request for Observations, Supernovae, Transient
We have detected four supernova candidates in CSS images from UT dates Oct 9th, 29th and 30th. The detections have the following parameters:
CSS081030:011341+044717 is associated with an anonymous galaxy. This supernovae candidate is also seen in images from
Sept 21, Sept 29 and Oct 8 UT. No objects are seen in prior PQ, DSS1 and DSS2 images to mag ~21.
CSS081029:224444-030851 is near galaxy APMUKS B224209.38-032444.7 (mag 18.2). No transients are present in earlier
epochs of CSS, imaging including data taken on or before the 1st Oct (to mag ~20) or in prior PQ, DSS1 and DSS2 images.
CSS081009:002151-163204 is possibly a supernova based on CSS photometry from Oct 2, 9, and 27 UT.
CSS081030:043655-002136 is possibly a supernova based on CSS photometry from Oct 6, 9, and 30 UT.
However, as a possible associated point sources are seen in DSS images for CSS081009:002151-163204 and CSS081030:043655-002136
other sources of variability cannot not yet be ruled out. We request follow-up observations.
Further to ATel#1734, additional CSS and P60 photometry of CSS080921:012706+031305 suggest this object is a supernova.
For finding charts and discovery images please see: http://voeventnet.cacr.caltech.edu/feeds/ATEL/CRTS.
Current candidate and confirmed SNe can be found here.
CRTS optical transients are detected and published as VOEvents in real-time at http://voeventnet.org/feeds/Catalina.shtml and in RSS here http://voeventnet.caltech.edu/feeds/Catfeed.xml
