RXTE Detects 245 Hz X-ray Pulsations from IGR J17511-305

Markwardt, C. B.; Altamirano, D.; Swank, J. H.; Strohmayer, T. E.; Linares, M.; Pereira, D.
Referencia bibliográfica

The Astronomer's Telegram, #2197

Fecha de publicación:
9
2009
Número de autores
6
Número de autores del IAC
0
Número de citas
30
Número de citas referidas
18
Descripción
RXTE PCA Bulge scans detected activity of what appeared to be a known source. However, based on the results presented below, and the report of a new INTEGRAL source IGR J17511-305 (Baldovin et al. ATEL #2196), the activity detected by RXTE is due to a new 245 Hz X-ray pulsar. The source was initially detected on 2009-09-11 at 17:50 UT as a rising flux attributed to two known sources, XTE J1751-305 and GRS 1747-312, the first of which is a known 435 Hz X-ray pulsar.