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Comptonization and reflection of X-ray radiation and the X-ray-radio correlation in the chi-states of GRS 1915+105

Arne Rau·Jochen Greiner
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Abstract

We present a comprehensive X-ray study of four years of pointed RXTE observations of GRS 1915+105 in the chi-state. We interpret the behavior of the hard power law tail spectrum as coming from inverse Compton scattering of soft disk photons on a thermally dominated hybrid corona above the accretion disk. GRS 1915+105 shows a strong, variable reflection amplitude. As in other BHC and in Seyfert galaxies, a correlation between the power law slope and the reflection was found. Also, the radio fluxes at 2.25 GHz and 15 GHz correlate with the power law slope, thus revealing a connection between the outflowing matter and the comptonizing region in the chi-states.

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Arne Rau, Jochen Greiner. 2002-10-06. Comptonization and reflection of X-ray radiation and the X-ray-radio correlation in the chi-states of GRS 1915+105. https://doi.org/10.1051/0004-6361%3A20021079

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