Journal ArticleDOI
Absorption Line Profile Variations among the O Stars. I. The Incidence of Variability
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This article is published in Astrophysical Journal Supplement Series.The article was published on 1996-04-01. It has received 214 citations till now. The article focuses on the topics: O-type star & Spectral line.read more
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Journal ArticleDOI
Winds from hot stars
TL;DR: In this paper, a review of the analysis of stellar winds from O-stars, B-supergiants, and Central Stars of Planetary Nebulae with O-type spectra is presented.
Journal ArticleDOI
Mass loss from hot massive stars
TL;DR: In this paper, the authors discuss various aspects of radiation-driven mass loss, both from the theoretical and the observational side, focusing on the winds from OB-stars, and discuss the problems of measuring mass loss rates from weak winds and the potential of the NIR Br α -line as a tool to enable a more precise quantification, and comment on physical explanations for mass-loss rates that are much lower than predicted by the standard model.
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The VLT-FLAMES Tarantula Survey. VIII. Multiplicity properties of the O-type star population
Hugues Sana,A. de Koter,A. de Koter,S. E. de Mink,S. E. de Mink,P. R. Dunstall,Chris Evans,Vincent Hénault-Brunet,J. Maíz Apellániz,O.H. Ramírez-Agudelo,W. D. Taylor,Nolan R. Walborn,J. S. Clark,Paul A. Crowther,Artemio Herrero,Artemio Herrero,Mark Gieles,Norbert Langer,D. J. Lennon,Jorick S. Vink +19 more
TL;DR: In this paper, the multiplicity properties of the massive O-type star population were analyzed using multi-epoch spectroscopy and variability analysis to identify spectroscopic binaries.
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ICCD Speckle Observations of Binary Stars. XIX. An Astrometric/Spectroscopic Survey of O Stars
Brian D. Mason,Douglas R. Gies,William I. Hartkopf,William G. Bagnuolo,T. ten Brummelaar,T. ten Brummelaar,T. ten Brummelaar,Harold A. McAlister +7 more
TL;DR: In this paper, the authors present the results of a speckle interferometric survey made with the CHARA camera and 4 m-class telescopes of Galactic O-type stars with V 59% have a visual or spectroscopic companion, but less so among field and especially runaway stars.
Journal ArticleDOI
Sub-surface convection zones in hot massive stars and their observable consequences
Matteo Cantiello,Norbert Langer,Norbert Langer,Ines Brott,A. de Koter,A. de Koter,Steven N. Shore,Jorick S. Vink,A. Voegler,D. J. Lennon,Sung-Chul Yoon +10 more
TL;DR: In this article, the authors study the convection zones in the outer envelope of hot massive stars which are caused by opacity peaks associated with iron and helium ionization and determine the occurrence and properties of these convection regions as function of the stellar parameters.