The X-ray spectrum of LSI+61o303

Abstract

It had been proposed earlier that the hard X-ray and gamma-ray radiation of the Be/X-ray system LSI+61o303 could be due to inverse Compton scattering of optical photons from the Be star by the same electron population which also produces the radio emission. Recently, Apparao (2001) has calculated this inverse Compton emission in more detail, and predicted that the X-ray spectrum should show a break at around 20 keV. We investigated archival RXTE data, but do not find such a break in the 2--25 keV range. The implications of this finding are shortly discussed.

4 pages, 3 figures, to appear in A&A

References in corpus (2)

• Simultaneous X-ray and Radio Monitoring of the Unusual Binary LSI+61 303: Measurements of the Lightcurve and High-Energy Spectrum
• A Multiwavelength Investigation of the Relationship Between 2CG135+1 and LSI+61o 303

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• Multiwavelength Observations of LS I +61 303 with VERITAS, Swift and RXTE
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• H-alpha observations of the gamma-ray-emitting Be/X-ray binary LSI+61303: orbital modulation, disk truncation, and long-term variability
• Multiwavelength Observations of The TeV Binary LS I +61 303 with VERITAS, Fermi-LAT and Swift-XRT During a TeV Outburst
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