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C IV resonance line profiles in O stars

Published online by Cambridge University Press:  14 August 2015

S. B. Parsons ,
J. D. Wray ,
K. G. Henize  and
G. F. Benedict
S. B. Parsons
Affiliation:
Department of Astronomy, University of Texas at Austin
J. D. Wray
Affiliation:
Department of Astronomy, University of Texas at Austin
K. G. Henize
Affiliation:
Department of Astronomy, University of Texas at Austin
G. F. Benedict
Affiliation:
Department of Astronomy, University of Texas at Austin

Extract

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The S-019 experiment on Skylab (cf. Henize et al. 1975; “Paper I”) recorded far UV spectra in about 160 4° x 5° fields, covering 10% of the sky, on 101 film with a 15 cm aperture objective-prism telescope. Several hundred early-type stars were observed in the vicinity of 1550 Å with a resolution between 3 and 4 Å, as well as thousands of stars at longer wavelengths and correspondingly lower resolution. An atlas of spectra for types 04 to B5 is illustrated in Paper I. That figure shows that the P Cygni profile is a characteristic of all supergiants earlier than B3 and main sequence stars earlier than 08.

Type
Session 2: U.V. Spectroscopy
Information
Symposium - International Astronomical Union , Volume 83: Mass Loss and Evolution of O-Type Stars , 1979 , pp. 95 - 98
Copyright
Copyright © Reidel 1979 

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