Roche Potential with Luminous Accretion Disks

Details Roche Potential with Luminous Accretion Disks Roche Potential with Luminous Accretion Disks

Dec 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002pasj...54.1057f&link_type=abstract

Publications of the Astronomical Society of Japan, Vol.54, No.6, pp.1057-1063

Astronomy and Astrophysics

Astronomy

2

Accretion, Accretion Disks, Common Envelopes, Stars: Binaries: General, X-Ray: Stars

Scientific paper

The radiative environments of an interacting binary, which contains a luminous accretion disk, are investigated. The disk radiation field has no effect in the direction of the orbital plane, while it significantly affects in the polar direction. As the disk luminosity increases, the Roche potential around the compact star becomes hollow in the polar direction. It further crashes toward the pole, and a cone of avoidance appears at the normalized luminosity Γd ≡ Ld/LE = 0.5, where Ld is the disk luminosity and LE the Eddington luminosity of the compact star. The disk corona, the wind-fed accretion flow, and the common envelope suffer a remarkable influence by the luminous disk in active binaries. Of these, the wind-fed accretion is briefly discussed.

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