BeppoSAX Observations of the galactic source GS1826-238 in a hard X-ray high state

Details BeppoSAX Observations of the galactic source GS1826-238 in a hard X-ray high state BeppoSAX Observations of the galactic source GS1826-238 in a hard X-ray high state

1999-01-15

arxiv.org/abs/astro-ph/9901203v1

Astronomy and Astrophysics

Astrophysics

to appear in the 3rd INTEGRAL WORKSHOP Proceedings

Scientific paper

The BeppoSAX Narrow Field Instruments observed the galactic source GS1826-238 in October 1997, following a hard X-ray outburst with a peak flux of about 100 mCrab detected by BATSE. Two short X-ray bursts (about 150 s) were detected up to 60 keV, with larger amplitude and duration at lower energies(up to a factor 20 times the persistent emission). This confirms the proposed identification of the source as a weakly magnetized neutron star in a LMXRB system. For both persistent and burst states, the spectrum in the 0.4-100 keV energy range is well fitted by an absorbed blackbody, plus a flat power-law with an exponential cutoff at 50 keV.

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