RXTE detects X-ray bursts from Circinus X-1

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

The Astronomer's Telegram, #2643

Advertised on:
5
2010
Number of authors
15
IAC number of authors
0
Citations
9
Refereed citations
8
Description
After the recent report of X-ray re-brightening (ATel #2608), RXTE has observed the peculiar neutron star X-ray binary Cir X-1 eleven times during the last two weeks (May 11-25, 2010). We report the detection of nine X-ray bursts in RXTE-PCA data, 25 years after the first -and the only previous- detection of X-ray bursts from this source (Tennant et al. 1986, MNRAS, 219, 871). At least one of the nine bursts has all the characteristics of a type I (thermonuclear) X-ray burst.