The variability of spectral lines in SS 433 with orbital period

Details The variability of spectral lines in SS 433 with orbital period The variability of spectral lines in SS 433 with orbital period

Dec 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989pazh...15.1092k&link_type=abstract

Pis'ma v Astronomicheskii Zhurnal (ISSN 0320-0108), vol. 15, Dec. 1989, p. 1092-1101. In Russian. In Russian. In Russian.

Astronomy and Astrophysics

Astronomy

1

Accretion Disks, Line Spectra, Periodic Variations, Stellar Spectra, Absorption Spectra, Emission Spectra, Radial Velocity

Scientific paper

The variability of emission and absorption lines in the spectrum of SS 433 was investigated with a 6-m telescope in 1981. It is confirmed that He II, C III and N III lines originate in the region of accretion disk. Hydrogen and He I lines are formed mainly in the gas transferred into the disk. At the phase of 0.25 the gas stream is eclipsed by normal star, and the intensity of H-beta line decreases by about 20 percent. At the phase of 0.75 the stream passes in front of the system and causes the absorption that distorts the radial velocity curves of weak He I lines.

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