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

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.

13 pages, 11 figures, to be published in A&A

References in corpus (1)

• The Chandra HETGS and RXTE view of GRS 1915+105

Cited by in corpus (13)

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• Correlations between X-ray and radio spectral properties of accreting black holes
• On the origin of the various types of radio emission in GRS 1915+105
• Simultaneous multi-wavelength observations of GRS 1915+105
• A Distinctive Disk-Jet Coupling in the Seyfert-1 AGN NGC 4051
• A Statistical Study on the Low-Frequency QPO Amplitude Spectrum and Amplitude in GRS 1915+105
• The 590 days long term periodicity of the microquasar GRS 1915+105
• Multiwavelength scaling relations for nuclei of Seyfert galaxies
• Connection between accretion disk and superluminal radio jets and the role of radio plateau state in GRS 1915+105
• Correlated radio:X-ray emission in the hard states of Galactic microquasars
• Is the plateau state in GRS 1915+105 equivalent to canonical hard states?
• Interpreting the large amplitude X-ray variation of GRS 1915+105 and IGR J17091-3624 as modulations of an accretion disc
• A study of the cross-correlation and time lag in black hole X-ray binary XTE J1859+226