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The VLT-FLAMES Tarantula Survey

Published online by Cambridge University Press:  28 July 2017

Jorick S. Vink ,
C.J. Evans ,
J. Bestenlehner ,
C. McEvoy ,
O. Ramírez-Agudelo ,
H. Sana ,
F. Schneider  and
VFTS
Jorick S. Vink
Affiliation:
Armagh Observatory, College Hill, BT61 9DG, Armagh, Northern Ireland email: jsv@arm.ac.uk
C.J. Evans
Affiliation:
ATC, Royal Observatory Edinburgh, Blackford Hill, Edinburgh, EH9 3HJ, UK
J. Bestenlehner
Affiliation:
Armagh Observatory, College Hill, BT61 9DG, Armagh, Northern Ireland email: jsv@arm.ac.uk Departament of Physic and Astronomy University of Sheffield, Sheffield, S3 7RH, UK
C. McEvoy
Affiliation:
ARC, School of Mathematics and Physics, QUB, Belfast BT7 1NN, UK
O. Ramírez-Agudelo
Affiliation:
ATC, Royal Observatory Edinburgh, Blackford Hill, Edinburgh, EH9 3HJ, UK
H. Sana
Affiliation:
Institute of Astrophysics, KU Leuven, Celestijnenlaan 200D, 3001, Leuven, Belgium
F. Schneider
Affiliation:
Department of Physics, University of Oxford, Keble Road, Oxford OX1 3RH, UK
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Abstract

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We present a number of notable results from the VLT-FLAMES Tarantula Survey (VFTS), an ESO Large Program during which we obtained multi-epoch medium-resolution optical spectroscopy of a very large sample of over 800 massive stars in the 30 Doradus region of the Large Magellanic Cloud (LMC). This unprecedented data-set has enabled us to address some key questions regarding atmospheres and winds, as well as the evolution of (very) massive stars. Here we focus on O-type runaways, the width of the main sequence, and the mass-loss rates for (very) massive stars. We also provide indications for the presence of a top-heavy initial mass function (IMF) in 30 Dor.

Keywords

stars: early-typestars: massivestars: evolutionstars: luminosity functionmass functionstars: mass lossstars: fundamental parameters
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 12 , Symposium S329: The Lives and Death-Throes of Massive Stars , November 2016 , pp. 279 - 286
Copyright
Copyright © International Astronomical Union 2017 

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