Implications of the absence of eclipsing in SS 433

Details Implications of the absence of eclipsing in SS 433 Implications of the absence of eclipsing in SS 433

Jan 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981mnras.194..293w&link_type=abstract

Monthly Notices of the Royal Astronomical Society, vol. 194, Jan. 1981, p. 293-299.

Astronomy and Astrophysics

Astronomy

6

Eclipsing Binary Stars, Stellar Evolution, Stellar Mass, Stellar Spectra, Stellar Spectrophotometry, X Ray Sources, Line Spectra, Mass Transfer, Radial Velocity, Stellar Models, Stellar Oscillations, Supernovae

Scientific paper

The observed absence of photometric and X-ray eclipsing in SS 433 was attributed to the unusually large mass ratio (exceeding 14) in the binary system. An orbital motion interpretation of the radio velocity of the stationary lines is presented in terms of source motion within a hot spot located on the disk; a parameter alpha measures the relative contribution of the hot spot and the disk to the observed line spectrum. If the compact object is a neutron star with a solar mass of approximately 1 and the companion star mass is less than 0.07, the system may be similar to the shorter period cataclysmic variable WZ Sge; the companion star was reduced to its low mass by a runaway mass-transfer process driven by angular momentum loss from the system.

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