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P. T. Zycki (Nicolaus Copernicus Astronomical Center, Warsaw, Poland)
Fourier-frequency resolved spectra are energy spectra computed in a narrow range of Fourier frequency. They thus describe the energy spectrum of a component varying on a given timescale. They were computed from RXTE data of a few bright black hole X-ray binaries. I will present the Fourier spectra predicted by two models of accretion in low/hard state of accreting black holes: localized magnetic flares above an ionized disk, and a propagation model in the truncated disk/inner hot flow geometry. Spectra predicted from the former model are inconsistent with the observations, while the latter model can reproduce the data.
Bulletin of the American Astronomical Society,
© 2003. The American Astronomical Soceity.