[vsnet-alert 10400] ROTSE3 J203225+602837 (ATEL)

Taichi Kato tkato at kusastro.kyoto-u.ac.jp
Sun Aug 3 15:53:12 JST 2008


  (fwd) ROTSE3 J203225+602837

The Einstein source is:
203224.5 +602839 (2000.0) EMSS2 3.44sigma
203224.3 +602833 (2000.0) 2E_IPC10314-2 ultrasoft-X 

   The source was described as ultrasoft.  More observations are
needed to clarify the nature of the object.

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The Astronomer's Telegram                   http://www.astronomerstelegram.org 
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Posted: Sat Aug  2 01:30:01 EDT 2008 -- Sun Aug  3 01:30:01 EDT 2008
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ATEL #1642                                                           ATEL #1642

Title:          Discovery of CV candidate ROTSE3 J203225+602837
Author: A. Uecker, D. Chamarro, F. Yuan, M. D. Sisson, C. Akerlof,
                T. McKay (U  Mich.), A. Henden (AAVSO) report on behalf of the R
OTSE
                collaboration
Queries:        yuanfang at umich.edu
Posted: 2 Aug 2008;  14:08  UT
Subjects:       Optical, Cataclysmic Variables, Transients

We report the discovery of CV candidate ROTSE3 J203225+602837 in     unfiltered
CCD images taken by the 0.45m ROTSE-IIIb telescope at     McDonald Observatory,
Texas.       The object is located at RA: 20:32:24.70 Dec: +60:28:37.2
(J2000) and     was observed at ~16.4 mag on 2008 Jul 19.2 UT and at ~16.7
mag on 2008     Jul 24.3 UT. It was not detected to a limiting magnitude
of ~17.7 on     2008 Jul 15.2 UT. There may be increased uncertainty in
the photometry and astrometry     due to likely contamination from a ~17
mag star about 10 arcsec away.      

The object appears about 4 arcsec from the X-ray source 2E 2031.3+6018
in the SIMBAD astronomical database. This transient has an R~19.7 
counterpart in the USNO-B2.0 catalog. According to the photometry of
the USNO-B catalog, it is bluer than nearby field stars, and thus tentatively
categorized as a galactic CV. A ROTSE3 finding     chart can be found at
http://rotse.net/rsvp/cv2032+6028.jpg 

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Password Certification:  Fang Yuan (yuanfang at umich.edu)
http://www.astronomerstelegram.org/?read=1642


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