Twisted Accretion Discs - Part Two - Variation in Density Distribution and Application to Interacting Binaries

Details Twisted Accretion Discs - Part Two - Variation in Density Distribution and Application to Interacting Binaries Twisted Accretion Discs - Part Two - Variation in Density Distribution and Application to Interacting Binaries

Nov 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986mnras.223..225k&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Vol. 223, NO.2/NOV15, P. 225, 1986

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17

Scientific paper

Accretion discs formed out of the symmetry plane of a compact object are likely to be twisted due to the effects of precession. The radius at which they align with the compact object spin axis depends on viscosity and surface-density distribution along with the dominant external forcing on the disc. Only isothermal discs are treated because of their tractability. The results are applied to X-ray binaries with reasonably well-determined parameters which exhibit long-term periodic behaviour, particularly Her X-1. It is found that the case for alignment in Her X-1 and 2S0614+091 is inconclusive, but alignment is ruled out in SMC X-1 and LMC X-4, in this model.

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