BeppoSAX observation of the superluminal galactic source GRS1915+105

Details BeppoSAX observation of the superluminal galactic source GRS1915+105 BeppoSAX observation of the superluminal galactic source GRS1915+105

Jan 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999nuphs..69..336f&link_type=abstract

Nuclear Physics B Proceedings Supplements, Volume 69, Issue 1-3, p. 336-339.

Physics

Nuclear Physics

2

Scientific paper

We report on TOO BeppoSAX observations of the superluminal galactic source GRS1915+105 in its high flux state. The TOO was triggered by the Wide Field Cameras, and the source was then followed up for about a month with a long (100ksec) observation and a set of nine 10ksec snapshots. The source exhibited strong flux and spectral variability over the whole energy range (0.1-300keV). We present here the spectral analysis carried out on a portion of the longer observation. The low energy (0.1-10keV) spectrum taken in a phase of lack of spectral variability can be reasonably well fitted with an absorbed power law plus a multicolor blackbody. Clear evidence for a Fe Kα emission line at 6.7keV is also found, which an intensity that may be not directly correlated with continuum flux variation.

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