INTEGRAL detects an early stage of a new outburst of Aql X-1

Details INTEGRAL detects an early stage of a new outburst of Aql X-1 INTEGRAL detects an early stage of a new outburst of Aql X-1

May 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007atel.1079....1r&link_type=abstract

The Astronomer's Telegram, #1079

Astronomy and Astrophysics

Astronomy

6

Radio, Millimeter, Infra-Red, Optical, X-Ray, Gamma Ray, Binaries, Neutron Stars, Transients

Scientific paper

We monitored the region around GRS 1915+105 with INTEGRAL since March 7, 2007 with one 20 ks observation performed every second revolution (the approximative separation between two consecutive observations is 6 days). During our last observation performed between May 20, 16h 59 UTC and May 20, 22h45 UTC (INTEGRAL revolution 561) a source, whose position is consistent with that of the transient Atoll Aql X-1 (within 0.5 arcmin between 20 and 40 keV), is clearly detected with ISGRI in the 20-40 and 40-80 keV mosaic images.

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