Frequency resolved spectroscopy of Cyg X-1: fast variability of the reflected emission in the soft state

Preprint

26 January 2000

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.astro-ph/0001450

Abstract

Using the RXTE/PCA data we study the fast variability of the reflected emission in the soft spectral state of Cyg X-1 by means of Fourier frequency resolved spectroscopy. We find that the rms amplitude of variations of the reflected emission has the same frequency dependence as the primary radiation down to time scales of 5-10 than in the soft spectral state. Modeling the transfer function of the disk, we estimate the inner radius of the accretion disk R_in~100R_g in the hard and R_in<10R_g in the soft state for a 10M_sun black hole.

Keywords

RESOLVED SPECTROSCOPY
REFLECTED EMISSION
FREQUENCY RESOLVED
TRANSFER FUNCTION
FAST VARIABILITY
ACCRETION
RXTE/PCA
CYG X

All Related Versions

Version 1, 2000-01-26, ArXiv
Published version: Monthly Notices of the Royal Astronomical Society, 316 (4), 923.

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