Swift observations of an outburst of the SFXT AX J1845.0-0433/IGR J18450-0435

Details Swift observations of an outburst of the SFXT AX J1845.0-0433/IGR J18450-0435 Swift observations of an outburst of the SFXT AX J1845.0-0433/IGR J18450-0435

Jun 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009atel.2102....1r&link_type=abstract

The Astronomer's Telegram, #2102

Astronomy and Astrophysics

Astronomy

X-Ray, Gamma Ray, Request For Observations, Binaries, Transients

Scientific paper

Swift has observed a new outburst from the Supergiant Fast X-ray Transient AX J1845.0-0433/IGR J18450-0435. The Swift Burst Alert Telescope (BAT) triggered on it on 2009 June 28 at 08:06:03 UT (image trigger=355911). Swift slewed to the target, so that the XRT began observing the field at about 795 seconds after the BAT trigger. Using the BAT data set from T-239 to T+963 s from the recent telemetry downlink, we find that the time-averaged spectrum from T+8.4 to T+790.7 s is best fit by a simple power-law model with a photon index of 2.41 +/- 0.34 (90% cl.).

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