The 4686 He II emission line and the mass of the relativistic companion in the Cygnus X-1 binary system

Details The 4686 He II emission line and the mass of the relativistic companion in the Cygnus X-1 binary system The 4686 He II emission line and the mass of the relativistic companion in the Cygnus X-1 binary system

Oct 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983pazh....9..606a&link_type=abstract

(Pis'ma v Astronomicheskii Zhurnal, vol. 9, Oct. 1983, p. 606-611) Soviet Astronomy Letters (ISSN 0360-0327), vol. 9, Sept.-Oct.

Astronomy and Astrophysics

Astronomy

2

Binary Stars, Companion Stars, Emission Spectra, Helium Ions, Stellar Mass, X Ray Sources, Absorption Spectra, Cygnus Constellation, Line Spectra, Radial Velocity, Stellar Spectrophotometry, Supergiant Stars, X Ray Astronomy, X Ray Stars

Scientific paper

Using high-dispersion spectrograms obtained during the course of five
years with the 6-m telescope the absorption and the emission components
have been separated in the variable profile of the He II λ4686
line. Radial velocities of the emission component have been measured,
parameters of the orbit have been calculated.

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