RXTE detection of a thermonuclear burst from IGR J17498-2921: distance estimate and burst oscillations

Astronomy and Astrophysics – Astronomy

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X-Ray, Binary, Neutron Star, Transient, Pulsar

Scientific paper

We report the detection of a type I X-ray burst with burst oscillations during an RXTE-PCA observation of the recently discovered accreting millisecond pulsar (AMP) IGR J17498-2921 (ATels #3551, #3555, #3556, #3558, #3559, #3560, #3561, #3562, #3563). The burst intensity peaked on 2011-08-16 at 15:21:45 UTC. We find a rise time of ~0.4s (time span for burst intensity to go from 25% to 90% of net peak value) and an approximate total duration in the RXTE-PCA bandpass of 30s.

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