[vsnet-alert 8667] Discovery of CV ROTSE3 J214850-020622.2 (ATEL)

[Taichi Kato]

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The Astronomer's Telegram                   http://www.astronomerstelegram.org 
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Posted: Sun Sep  4 01:30:01 EDT 2005 -- Mon Sep  5 01:30:00 EDT 2005
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ATEL #603							     ATEL #603

Title:		Discovery of CV ROTSE3 J214850-020622.2
Author:	W. Rujopakarn (U. Mich.), T. A. McKay (U. Mich.) and F. Yuan
		(U. Mich.) on behalf of the ROTSE collaboration
Queries:	wiphu at umich.edu
Posted:	5 Sep 2005;  2:20  UT
Subjects:	Optical, Cataclysmic Variables

Analysis of ROTSE-III sky patrol fields reveals of a probable new CV which
we designate ROTSE3 J214850-020622.2. The object was first detected in
unfiltered CCD images taken on September 2.32 UT using the 0.45m ROTSE-IIIb
telescope at McDonald Observatory in Texas. The position of the object
is (J1000) RA: 327.21052, DEC: -2.10618. Discovery images indicated the
brightness of 17.2 magnitude. We later observed the object at 16.8 magnitude
on September 3.76 UT with ROTSE-IIId telescope at the Turkish National
Observatory in Turkey. The object is not present on ROTSE-IIIb images taken
on August 27.34 UT with limiting magnitude of approximately 18.9. We found
no identifiable host in USNO-B plates and tentatively interpret, based
on the light curve, that this optical transient is an outburst of a galactic
CV. 

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