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Title:
EXO0748-676 Currently at Very Low Flux Level
Authors:
Wolff, Michael T.; Ray, Paul S.; Wood, Kent S.
Publication:
The Astronomer's Telegram, #1736
Publication Date:
09/2008
Origin:
ATEL
Keywords:
X-ray, Binaries, Neutron Stars
Bibliographic Code:
2008ATel.1736....1W

Abstract

We regularly monitor the X-ray eclipses of the LMXB source EXO0748-676 with the Rossi X-Ray Timing Explorer (RXTE) Proportional Counter Array (PCA). EXO0748-676 was discovered by the EXOSAT satellite in February 1985 (Parmar et al. 1985, IAUC #4039). The compact object is known to be a neutron star since it shows X-ray bursts (Gottwald et al. 1986, ApJ, v.308, p. 213). Since the beginning of the RXTE mission in 1996 this source has maintained a low but consistent flux (but also with occasional flares) near 8 mcrab in the 2-20 keV energy range.
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Physics
arXiv e-prints