Hard X-ray spectrum of GRS 1915+105: the disk-jet connection

Details Hard X-ray spectrum of GRS 1915+105: the disk-jet connection Hard X-ray spectrum of GRS 1915+105: the disk-jet connection

Sep 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001esasp.459..437r&link_type=abstract

In: Exploring the gamma-ray universe. Proceedings of the Fourth INTEGRAL Workshop, 4-8 September 2000, Alicante, Spain. Editor:

Computer Science

Accretion, Accretion Disks, X-Rays: Stars

Scientific paper

We have established the hard X-ray spectral characteristics of the Galactic micro-quasar GRS 1915+105 using the RXTE archives. We make a combined fit to the PCA and HEXTE data and derive the spectral parameters in the low-hard and high-soft states of the source. We resolve the X-ray spectra into three components namely: a multi-color disk component, a Comptonized component and a power-law at higher energies. We find that the spectral states are defined by the relative importance of each of these components. We find a distinct X-ray spectral difference between the radio-loud and radio-quiet low-hard states of the source.

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