[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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