On the mass-loss properties of the most massive stars

Details On the mass-loss properties of the most massive stars On the mass-loss properties of the most massive stars

Jan 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011bsrsl..80...92g&link_type=abstract

Société Royale des Sciences de Liège, Bulletin, vol. 80, p. 92-97 (Proceedings of the 39th Liège Astrophysical Colloquium, held

Astronomy and Astrophysics

Astrophysics

Scientific paper

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 Γ-dependent mass-loss rates in the O-WR transition phase.

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