X-ray polarization in the two-phase model for AGN and X-ray binaries

Details X-ray polarization in the two-phase model for AGN and X-ray binaries X-ray polarization in the two-phase model for AGN and X-ray binaries

Mar 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993mnras.261..346h&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 261, no. 2, p. 346-352.

Astronomy and Astrophysics

Astronomy

24

Active Galactic Nuclei, Astronomical Models, Polarization (Waves), X Ray Binaries, Accretion Disks, Radiative Transfer

Scientific paper

We calculate the polarization properties of the two-phase model proposed by Haardt and Maraschi (1991, 1993) to explain the X-ray emission of AGN and X-ray binaries. In this model, hot electrons in an optically thin corona Comptonize the soft photons emitted by the underlying accretion disk to produce the X-rays. We find that the degree of polarization depends strongly on the inclination angle of the system, on the optical depth of the hot corona and on the assumed law for the soft flux. The main result is the strong dependence of the polarization properties on the energy, and in particular the orthogonality between the UV/soft X-ray and the hard X-ray polarizations.

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