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X-ray Reappearance of V4641 Sgr

ATel #295; Jean Swank(NASA/GSFC)
on 4 Jul 2004; 18:25 UT
Distributed as an Instant Email Notice Transients
Credential Certification: Jean Swank (swank@milkyway.gsfc.nasa.gov)

Subjects: X-ray, Request for Observations, Binary, Black Hole, Transient

Referred to by ATel #: 303

VSNET observers reported that V4741 SGR brightened optically today. Coincidentally V4641 Sgr was observed in the RXTE PCA scans of the Galactic Bulge on 2004 Jul 03, UT 11:54, for the first time since 2004 Jun 01, UT 17:35. The flux was 8.2 mCrab 2-10 keV, while it was last bright (66 mCrab) on 2003 Aug 6 and was generally below 0.5 mCrab during intervening observations. Additional RXTE observations are planned.