BAT detection of a new gamma ray source SWIFT J1753.5-0127
ATel #546; D. M. Palmer (LANL), S. D. Barthelmey (GSFC), J. R. Cummings (NRC/GSFC), N. Gehrels (GSFC), H. A. Krimm (GSFC/USRA), C. B. Markwardt (UMD/GSFC),T. Sakamoto (NRC/GSFC), J. Tueller (GSFC)
on 1 Jul 2005; 20:03 UT
Distributed as an Instant Email Notice Request For Observations
Credential Certification: Craig B. Markwardt (craigm@lheamail.gsfc.nasa.gov)
Subjects: X-ray, Gamma Ray, Request for Observations, Transient
Referred to by ATel #: 547, 549, 550, 551, 553, 554, 558, 562, 566, 574, 1066, 1130, 2225, 4056, 9708, 9735, 16132, 16262, 16818
Swift BAT reports the detection of a new gamma source SWIFT
J1753.5-0127 at (ra,dec) = (268.38, -1.46) (J2000) with a 3 arcminute
error radius (combined systematic and statistical with 90%
containment). The light curve shows large variability up to hundreds
of millicrab on sub-hour timescales with at least three detected
peaks around 2005-06-30 18:40, 2005-06-30 23:32, and 2005-07-01 10:40
UT. The earliest detection of the source is at 2005-05-30 12:05 UT.
There are no known gamma-ray sources at this position according to
SIMBAD, the INTEGRAL Transient Pages, and the XTE ASM.
Swift will
make a Target of Opportunity observation of this source.
