Inclination and orbital-phase-dependent resonance line-profile calculations applied to cataclysmic variable winds

Details Inclination and orbital-phase-dependent resonance line-profile calculations applied to cataclysmic variable winds Inclination and orbital-phase-dependent resonance line-profile calculations applied to cataclysmic variable winds

Feb 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987mnras.224..595d&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 224, Feb. 1, 1987, p. 595-632.

Astronomy and Astrophysics

Astronomy

77

Cataclysmic Variables, Orbital Resonances (Celestial Mechanics), Resonance Lines, Stellar Orbits, Stellar Spectra, Stellar Winds, Ultraviolet Spectra, Accretion Disks, Dwarf Novae, Eclipsing Binary Stars, Inclination, Light Curve, Stellar Mass Ejection

Scientific paper

The observed properties of wind-formed resonance lines in the spectra of nova-like variables and dwarf novae in outburst, are discussed. A method is then presented of calculating inclination- and orbital-phase-dependent resonance line profiles formed in a constant-ionization wind flowing from an accretion disc centre. The particular case of the C IV λ1549 line is considered. The line-transfer method used is based upon Castor's spherically symmetric application of the Sobolev approximation. The role of a wide variety of wind and disc parameters in determining the line-profile form, at both low and high inclination angles, is investigated. The behaviour of the C IV λ1549 line in high-inclination systems during primary eclipse is considered. Application of the eclipse calculations to IUE observations of RW Tri and UX UMa suggests a wind mass-loss rate ⪆10-10M_sun;yr-1.

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