Detailed empirical models for the winds of early-type stars

Abstract

view Abstract Citations (82) References (27) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Detailed empirical models for the winds of early-type stars. Olson, G. L. ; Castor, J. I. Abstract Owing to the recent accumulation of ultraviolet data from the IUE satellite, or X-ray data from the Einstein (HEAO 2) satellite, of visible data from ground based electronic detectors, and of radio data from the Very Large Array (VLA) telescope, it is becoming possible to build much more complete models for the winds of early-type stars. The present work takes the empirical approach of assuming that there exists a coronal region at the base of a cool wind. This will be an extension of previous papers by Olson and by Cassinelli and Olson; however, refinements to the model will be presented, and the model will be applied to seven O stars and one B0 star. Ionization equilibria are computed to match the line strengths found in UV spectra. The coronal fluxes that are required to produce the observed abundances of O(+5) are compared to the X-ray fluxes observed by the Einstein satellite. Publication: The Astrophysical Journal Pub Date: February 1981 DOI: 10.1086/158696 Bibcode: 1981ApJ...244..179O Keywords: Early Stars; Stellar Models; Stellar Winds; Ultraviolet Astronomy; Iue; Line Spectra; Oao 3; Oxygen Ions; Stellar Coronas; Very Large Array (Vla); Astrophysics full text sources ADS | data products SIMBAD (9) MAST (2)