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G. Gräfener, J.S. Vink, J.M. Bestenlehner & VLT-FLAMES Tarantula Consortium

On the mass-loss properties of the most massive stars

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Open Access

Abstract

The most massive stars are believed to form Wolf-Rayet like emission line spectra already on the main sequence. One goal of the new VLT-FLAMES Tarantula Survey is to understand the nature of such ‘O stars on steroids’, and to investigate the transition from normal O star to WR-type mass loss. The Tarantula nebula (30 Dor) hosts the closest starburst-like region in our neighborhood, with a cluster of 30-50 extremely massive stars in its center. In this paper we present a multi-wavelength program that includes integral field K-band spectra of the central region of 30 Dor with VLT/SINFONI. We discuss the prospects of this program in the context of our theoretical work on gamma-dependent mass-loss rates in the O-WR transition phase.

To cite this article

G. Gräfener, J.S. Vink, J.M. Bestenlehner & VLT-FLAMES Tarantula Consortium, «On the mass-loss properties of the most massive stars», Bulletin de la Société Royale des Sciences de Liège [En ligne], Volume 80 - Année 2011, 92 - 97 URL : https://popups.uliege.be/0037-9565/index.php?id=2550.

About: G. Gräfener

Armagh Observatory, College Hill, Armagh BT61 9DG, United Kingdom

About: J.S. Vink

Armagh Observatory, College Hill, Armagh BT61 9DG, United Kingdom

About: J.M. Bestenlehner

Armagh Observatory, College Hill, Armagh BT61 9DG, United Kingdom