Swift/XRT observations of an outburst of the SFXT IGRJ17544-2619

Details Swift/XRT observations of an outburst of the SFXT IGRJ17544-2619 Swift/XRT observations of an outburst of the SFXT IGRJ17544-2619

Jun 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009atel.2069....1r&link_type=abstract

The Astronomer's Telegram, #2069

Astronomy and Astrophysics

Astronomy

2

X-Ray, Request For Observations, Binaries, Transients

Scientific paper

Swift has observed a new outburst from IGR J17544-2619, a Supergiant Fast X-ray Transient discovered in September 2003 with INTEGRAL (Sunyaev et al., ATel#190). The Swift Burst Alert Telescope (BAT) triggered on it on 2009 June 06 at 07:48:59 UT (image trigger=354221). Swift immediately slewed to the target, so that the NFIs started observing about 164s after the trigger. The initial Swift/XRT data (WT mode, 170-446 s since the trigger) show a decaying light curve with a count rate that started at about 20 counts/s.

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