[vsnet-alert 7316] (fwd) XTE J0929-314: a faint X-ray transient

[Taichi Kato <tkato@kusastro.kyoto-u.ac.jp>]

Date: Tue, 30 Apr 2002 16:07:18 -0400 (EDT)
From: Ron Remillard <rr@space.mit.edu>
Subject: XTE J0929-314: a faint X-ray transient

The RXTE All-Sky Monitor has detected a faint
X-ray transient at R.A. = 09h29m22s, Decl. = -31 22'.8 (equinox
J2000.0; estimated 3' uncertainty at 90% confidence).  The source is
visible in sky maps computed from 6-day intervals of ASM data.  The
average flux (2-12 keV) was 15 +- 2 mCrab during 2002 April 13-18,
inclusive, rising to 20 +- 2 mCrab (April 19-24), and 26 +- 1 mCrab
(April 25-30).  The error circle does not contain any noteworthy
sources in the Simbad catalogs.  The ASM hardness ratios suggest an
X-ray spectrum similar to transients associated with weakly
magnetic neutron stars or some black hole systems. We encourage
optical and radio observations of this new transient.


Ron Remillard (M.I.T.) for the RXTE ASM Team at M.I.T. 
and NASA Goddard Space Flight Center.

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