On the origin of X-ray variability of SS 433

Details On the origin of X-ray variability of SS 433 On the origin of X-ray variability of SS 433

Oct 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984apj...285..702b&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 285, Oct. 15, 1984, p. 702-711.

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17

Black Holes (Astronomy), Eclipsing Binary Stars, Periodic Variations, Stellar Evolution, X Ray Sources, Commerce Lab, Computational Astrophysics, Mass Transfer, Nutation, Orbital Elements, Roche Limit

Scientific paper

The X-ray flares observed from the central source in SS 433 by the Einstein telescope are attributed to surges in the mass transfer rate due to changes in the critical Roche volume of the companion. Analysis of the Roche potential for a primary with spin misaligned with the orbital axis, as required by the slaved disk model, predicts that the critical Roche volume will contract twice per orbit if the orbit is circular. A critical Roche volume fractional change of 1-2 percent is found by applying this potential to SS 433. The nutation of the companion should not affect the steady precession of its spin. Aspects of this work strengthen the evidence that the compact object might be a black hole.

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