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ATEL # 1911; A.J. Drake, A.A. Mahabal, S.G. Djorgovski, M.J. Graham, R. Williams (Caltech); M. Catelan (PUC); E.C. Beshore, S.M. Larson, R. Hill, A. Gibbs, A. Boattini (LPL/UA); E. Christensen (Gemini Observatory);
on 26 Jan 2009; 23:51 UT
Password Certification: Andrew J. Drake (firstname.lastname@example.org)
Subjects: Optical, Request for Observations, Nova, Supernova, Transients
The Catalina Real-time Transient Survey has discovered seven supernova candidates from CSS images and Palomar-60 follow-up between UT dates Dec 20th and Jan 26th. The detections have the following parameters:
|CSS090126:093230+174119||2009-01-26 UT 05:24:01||RA 09:32:30.11||Dec 17:41:19.8||Mag 17.7||Type SN|
|CSS090125:112317+101741||2009-01-25 UT 09:42:38||RA 11:23:16.75||Dec 10:17:41.5||Mag 19.2||Type SN|
|CSS090120:164659+272759||2009-01-20 UT 13:16:02||RA 16:46:59.41||Dec 27:27:59.7||Mag 18.8||Type SN|
|CSS090102:115111+244022||2009-01-02 UT 11:10:33||RA 11:51:10.62||Dec 24:40:22.5||Mag 19.1||Type SN|
|CSS090102:130037+175057||2009-01-02 UT 12:31:17||RA 13:00:37.49||Dec 17:50:57.0||Mag 18.9||Type SN|
|CSS081229:134527-104353||2008-12-29 UT 13:17:24||RA 13:45:26.56||Dec -10:43:52.8||Mag 17.9||Type SN?|
|CSS081220:021652+135500||2008-12-20 UT 04:06:34||RA 02:16:52.47||Dec 13:55:00.7||Mag 17.8||Type SN|
CSS090126:093230+174119 appears associated with galaxy 2MASX_J09323134+1741326 which has SDSS Gunn mags (u=17.9, g=16.3, r=15.7, i=15.4, z=15.2) and spectroscopic redshift z=0.049. CSS090125:112317+101741 is associated with an SDSS galaxy with mags (23.9, 22.3, 22.2, 21.9, 21.4). CSS090120:164659+272759 is associated with an SDSS galaxy with mags (22.2, 22.0, 21.5, 21.3, 21.0). CSS090102:115111+244022 is associated with an SDSS galaxy with mags (22.9, 21.6, 21.3, 21.0, 21.4) in a galaxy cluster at z=0.13. CSS090102:130037+175057 has no apparent host galaxy in SDSS, PQ, or DSS data. CSS081229:134527-104353 has a possible faint source seen in deep CSS coadds but not PQ coadds, as well as a possible detection in DSS2-B. This suggests the object might be a CV. However, follow-up observations colours were more consistent with young SN-Ia. CSS081220:021652+135500 is associated with a faint source seen in SDSS data. Follow-up observations exhibited a colour consistent with young SN-Ia.
For finding charts, discovery images, lightcurves, etc., please see: http://voeventnet.cacr.caltech.edu/feeds/ATEL/CRTS.
Current candidate and confirmed SNe can be found here.