[vsnet-alert 9952] CSS080130:021110+171624 = OT_J021110.2+171624

[Taichi Kato]

  CSS080130:021110+171624 = OT_J021110.2+171624, an SU UMa-type
dwarf nova which underwent a superoutburst in late January.
This notification does not refer to a new outburst, though.

===

ATEL #1413                                                           ATEL #1413

Title:          Six more optical transients from CSS
Author: E. Glikman, C. Donalek, A. Mahabal, R. Williams, S.G. Djorgovski,
                M.J. Graham, A.J. Drake (Caltech);  E.C. Beshore, S.M. Larson (LPL/UA);
                E. Christensen (Gemini Observatory)
Queries:        eilatg at astro.caltech.edu
Posted: 5 Mar 2008;  9:36  UT
Subjects:       Optical, AGN, Novae, Supernovae, Transients, Variables

We have processed six additional optical transients in Catalina Sky Survey
(CSS) images obtained    at the Mt. Bigelow 0.7m Catalina Schmidt Telescope
between 30 Jan - 03 Mar 2008 UT.  The CSS discovery    observations consist
of four images spanning ~30 minutes. The transients were unresolved,  
and at the following J2000 coordinates:   

<table border=1>   <tr align=center><td><a href='http://voeventnet.caltech.edu/feeds/ATEL/CSS/803031
210404117636.atel.html'>
CSS080303:075520+203908</a></td><td>    2008-03-03 UT 03:04:14 </td><td>
RA 07:55:19.52  </td><td> Dec 20:39:08.0 </td><td> Mag 19.2</td></tr> 
<tr align=center><td><a href='http://voeventnet.caltech.edu/feeds/ATEL/CSS/802291290564121097.atel.h
tml'>
CSS080229:115214+301037</a></td><td>    2008-02-29 UT 08:10:57 </td><td>
RA 11:52:14.19  </td><td> Dec 30:10:37.0 </td><td> Mag 19.1</td></tr> 
<tr align=center><td><a href='http://voeventnet.caltech.edu/feeds/ATEL/CSS/802280070584107866.atel.h
tml'>
CSS080228:105301-075656</a></td><td>    2008-02-28 UT 07:55:02 </td><td>
RA  10:53:00.81  </td><td> Dec -07:56:56.0 </td><td> Mag 19.2</td></tr>
<tr align=center><td><a href='http://voeventnet.caltech.edu/feeds/ATEL/CSS/802280070774129096.atel.h
tml'>
CSS080228:142427-063345</a></td><td>    2008-02-28 UT 12:12:46 </td><td>
RA  14:24:26.63  </td><td> Dec -06:33:45.0 </td><td> Mag 18.7</td></tr>
<tr align=center><td><a href='http://voeventnet.caltech.edu/feeds/ATEL/CSS/801301180124103586.html'>
CSS080130:021110+171624</a></td><td>    2008-01-30 UT 03:38:17 </td><td>
RA 02:11:10.22  </td><td> Dec 17:16:24.0 </td><td> Mag 14.4</td></tr> 
<tr align=center><td><a href='http://voeventnet.caltech.edu/feeds/ATEL/CSS/802191230754114380.html'>
CSS080219:151457+234110</a></td><td>    2008-02-19 UT 11:26:29 </td><td>
RA 15:14:56.75  </td><td> Dec 23:41:10.0 </td><td> Mag 18.1</td></tr> 
</table>      

For finding charts and discovery images please see: http://voeventnet.caltech.edu/feeds/ATEL/CSS.

The first transient is also seen in CSS images from Feb 6 UT, but not
images from (or prior to), Jan 30 UT.   No source is present in Palomar-Quest
and SDSS images to ~23 mag. This is possibly a supernova.   
The second transient is seen in all four CSS images but has low S/N.
This transient was approximately    1.5 mags fainter in a prior coadd of
20 CSS images from a range of epochs. This transient is possibly   an AGN.

The third transient is not present in prior CSS, DSS or PQ coadd images
to mag ~23.   This is possibly a supernova.   
The fourth transient is seen in past CSS and PQ coadds. Images from
February 3 UT show the object   was ~3 mags brighter than in coadded prior
CSS images. This may be an AGN or SN.   
The fifth transient is significantly variable. Past CSS images show
that the object varying   by as much as four magnitudes. This transient
coincides with a faint IRAS source. It is present   in past PQ and DSS
source but is not visible in 2MASS images.   
The sixth transient is present in CSS images from Jan 1st and Feb 8th
UT when it was mags 16.6 and 17.7,    respectively. There is no clear source
in DSS, PQ, and SDSS images covering its location. This is    possibly
a supernova.   

Photometric and spectroscopic follow-up is requested.    

All stationary CSS optical transients are detected and published as
VOEvents in real-time    at http://voeventnet.caltech.edu/feeds/Catalina.shtml
and here    http://voeventnet.caltech.edu/feeds/Catfeed.xml (RSS)