The H-alpha line in the spectrum of HDE 245770

Details The H-alpha line in the spectrum of HDE 245770 The H-alpha line in the spectrum of HDE 245770

Oct 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980sval....6..305v&link_type=abstract

(Pis'ma v Astronomicheskii Zhurnal, vol. 6, Sept.-Oct. 1980, p. 582-586.) Soviet Astronomy Letters, vol. 6, Sept.-Oct. 1980, p.

Astronomy and Astrophysics

Astronomy

6

B Stars, Eclipsing Binary Stars, H Alpha Line, Stellar Spectra, X Ray Stars, Electron Density (Concentration), Giant Stars, Light Curve, Line Spectra, Radial Velocity

Scientific paper

Constant and variable components are discriminated in the profile of the H-alpha emission line in the spectrum of the star HDE 245770. The variable component is formed near the degenerate component of the binary system. The constant part of the line has a steady radial velocity of + 10 km/sec, while the variable part exhibits a radial-velocity curve having the same period, 104 sec, as the pulsations of the corresponding variable X-ray source A0535 + 26.

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