Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 1979
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979sval....5..344s&link_type=abstract
(Pis'ma v Astronomicheskii Zhurnal, vol. 5, Dec. 1979, p. 644-647.) Soviet Astronomy Letters, vol. 5, Nov.-Dec. 1979, p. 344-346
Astronomy and Astrophysics
Astrophysics
5
Nebulae, Plasma Clouds, Supernova Remnants, Variable Stars, Astrophysics, Binary Stars, Doppler Effect, Stellar Mass Ejection, X Ray Stars
Scientific paper
The swiftly moving plasma clouds that emit the Doppler-shifted H and He lines in SS 433 are estimated to have a linear size of about one-trillion cm and a density of about 100-billion per cu cm. Their lifetime, set by their expansion at the velocity of sound, is about one-million sec. The high velocities of the emitting clouds are attributed to rebound of the accreting plasma stream in the binary system SS 433 from the magnetic field of the spinning neutron star (a propeller effect). The optical component of the binary system is ejecting gas streams from its equatorial zone. Precession of the optical component explains the 164d period. SS 433 evidently represents an object of the Hercules X-1 type in an early phase of evolution.
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