A new approach for deriving the mass-loss rates of BAL quasars - The first order moment W(1) of an unsaturated P Cygni absorption component

Details A new approach for deriving the mass-loss rates of BAL quasars - The first order moment W(1) of an unsaturated P Cygni absorption component A new approach for deriving the mass-loss rates of BAL quasars - The first order moment W(1) of an unsaturated P Cygni absorption component

Jun 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983liaco..24..616s&link_type=abstract

IN: Quasars and gravitational lenses; Proceedings of the Twenty-fourth Liege International Astrophysical Colloquium, Cointe-Ougr

Astronomy and Astrophysics

Astrophysics

Absorption Spectra, Mass Flow Rate, Quasars, Spectral Line Width, Astronomical Models, Line Shape, Resonance Lines, Stellar Mass Ejection

Scientific paper

Under the reasonable assumption that the broad blue-shifted absorption line components observed in the spectra of broad absorption line (BAL) quasars arise from the scattering of line photons in a gas which is - spherically - ejected from a central core, the author shows that the technique of the first order moment of an unsaturated P Cygni profile can be conveniently applied to the observations in order to derive the mass-loss rates of BAL quasars.

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