New Outburst in Recurrent X-ray transient (MX0656-072 = XTEJ0658-073)
ATel #197; Ron Remillard (MIT) and Frank Marshall (GSFC), for the RXTE ASM team
on 18 Oct 2003; 18:29 UT
Distributed as an Instant Email Notice Transients
Credential Certification: Ron Remillard (rr@space.mit.edu)
Subjects: Radio, Optical, X-ray, Request for Observations, Binary, Transient
Referred to by ATel #: 202
The soft X-ray transient, "MX0656-072", has begun a new X-ray
outburst. Observations with the RXTE All-Sky Monitor reveal a slowly
increasing flux during the last 7 days, reaching a value of 75 (5)
mCrab at 2-12 keV on 2003 October 18. The ASM position is consistent
with the 3' error box (J2000 center in degrees: 104.612, -7.263)
produced by Ariel V during the 1975-1976 outburst. The current X-ray
flux is similar to the peak value (80 mCrab) seen in sparse
measurements of the first outburst (see Liu et al. 2001,
A&A 368, 1021). Observations at optical and other wavelengths are
strongly encouraged.
