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|Title:||Stellar winds from hot supergiants|
|Authors:||Hutchings, J. B.|
|Affiliation:||AA(Dominion Radio Astrophysical Observatory, Victoria, British Columbia, Canada)|
|Publication:||Astrophysical Journal, vol. 203, Jan. 15, 1976, pt. 1, p. 438-447. (ApJ Homepage)|
|NASA/STI Keywords:||B Stars, Hot Stars, O Stars, Stellar Mass Ejection, Stellar Winds, Supergiant Stars, Early Stars, Hertzsprung-Russell Diagram, Mass Flow Rate, Stellar Luminosity, Stellar Spectra, Tables (Data)|
High-dispersion spectrographic data are described for 65 very luminous
galactic OB stars. Their absolute magnitudes and masses are estimated.
Almost all the stars show evidence for mass outflow, and the flow rate
is empirically calibrated from mass-loss models for a few of them.
Approximate contours of mass-loss on the H-R diagram are suggested which
support the zero point of the individual rates. These are as high as one
hundred-thousandth of a solar mass per year from a supergiant of 60
solar masses. Anomalously high mass-loss rates found in a few stars may
be connected with duplicity of the objects.
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