BEPPOSAX LECS X-RAY OBSERVATIONS OF HERCULES-X-1

Citation
T. Oosterbroek et al., BEPPOSAX LECS X-RAY OBSERVATIONS OF HERCULES-X-1, Nuclear physics. B, Proceedings supplement, 69(1-3), 1999, pp. 178-181
Citations number
15
Categorie Soggetti
Physics, Particles & Fields
ISSN journal
09205632
Volume
69
Issue
1-3
Year of publication
1999
Pages
178 - 181
Database
ISI
SICI code
0920-5632(1999)69:1-3<178:BLXOOH>2.0.ZU;2-Z
Abstract
We present 0.1-10 keV observations of HerX-1 obtained with the Low-Ene rgy Spectrometer Concentrator instrument onboard the BeppoSAX satellit e during the main on-state of the 35 day cycle. We confirm the existen ce of an intense 0.093 keV blackbody component and a broad emission fe ature at 0.94 keV. The pulse phase dependence of these components is s imilar, suggesting a common origin. This is mast likely fluorescent ex citation of moderately ionized (xi similar to 10-100) material located at the inner edge of the accretion disk.