Analysis of the blue spectrum of the X-ray binary HD 153919

Details Analysis of the blue spectrum of the X-ray binary HD 153919 Analysis of the blue spectrum of the X-ray binary HD 153919

Sep 1974

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974apj...192..677h&link_type=abstract

Astrophysical Journal, vol. 192, Sept. 15, 1974, pt. 1, p. 677-683.

Astronomy and Astrophysics

Astrophysics

53

Binary Stars, Line Shape, O Stars, Radial Velocity, Stellar Spectra, X Ray Stars, Astronomical Models, Astronomical Spectroscopy, Spectrophotometry, Spectrum Analysis, Stellar Envelopes, Stellar Luminosity, Stellar Mass Ejection

Scientific paper

Radial velocities and line profile measurements are presented which are derived from high-dispersion spectrograms of the O6f star HD 153919 (= 2U 1700-37). A period of 3.4126 days is derived. The velocity amplitudes and mean velocities from different lines are related to their excitation and indicate extreme mass-loss. No direct spectroscopic evidence is found of the secondary, whose mass probably does not exceed 2 solar masses. A model of the system is discussed in which a collapsed star is moving through the extended, rotating envelope of the primary.

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