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

Linares, M.; Altamirano, D.; Watts, A.; Strohmayer, T.; Chakrabarty, D.; Patruno, A.; van der Klis, M.; Wijnands, R.; Casella, P.; Armas-Padilla, M.; Cavecchi, Y.; Degenaar, N.; Kalamkar, M.; Kaur, R.; Yang, Y.; Rea, N.
Bibliographical reference

The Astronomer's Telegram, #3568

Advertised on:
8
2011
Number of authors
16
IAC number of authors
0
Citations
16
Refereed citations
10
Description
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.