New Outburst of GRO J1655-40?
ATel #414; C. B. Markwardt (U. Maryland & NASA/GSFC) & J. H. Swank (NASA/GSFC)
on 19 Feb 2005; 21:15 UT
Distributed as an Instant Email Notice Request For Observations
Credential Certification: Craig B. Markwardt (firstname.lastname@example.org)
Subjects: X-ray, Request for Observations, Binary, Black Hole, Transient
RXTE PCA bulge scan observations on 2005 Feb 17.99 (UT) have
detected emission consistent with coming from the black hole transient
GRO J1655-40. The
flux in the 2-10 keV band was 4.1 +/- 0.6 mCrab. The source was not
detected in a previous observation on Feb 10.77 (2-10 keV flux
measurement of 0.3 +/- 0.3 mCrab).
A dedicated scan to confirm the position and
look at the growth rate is planned for Feb 20.