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[vsnet-campaign 1158] (fwd) new X-ray transient, XTE J1650-500
The RXTE All-Sky Monitor has detected X-ray emission from a new
source, XTE J1650-500. The ASM position (equinox 2000.0) is centered
at R.A. = 16h 50m 00s, Decl. = -50 deg. 00', with an estimated uncertainty
of 6'. The first detection was made on September 5.637, with an X-ray
intensity (2-12 keV) of 0.14(.02) Crab, rising to 0.24(.01) Crab on
Sept. 6.432 and 0.27(.01) Crab on Sept. 6.896. The ASM detections in
the 3 energy bands suggest X-ray colors consistent with a "soft X-ray
transient", rather than an X-ray pulsar. Observations at radio, optical,
and IR wavelengths are needed as soon as possible.
Ron Remillard (M.I.T.), reporting for the ASM team
at M.I.T. and NASA Goddard Space Flight Center
vsnet-adm@kusastro.kyoto-u.ac.jp
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