The VLT-FLAMES Survey of Massive Stars

Details The VLT-FLAMES Survey of Massive Stars The VLT-FLAMES Survey of Massive Stars

2008-03-19

arxiv.org/abs/0803.2820v1

Astronomy and Astrophysics

Astrophysics

7 pages, from the March 2008 edition of The ESO Messenger (vol. 131, p25). A fully formatted version is available at: http:/

Scientific paper

The VLT-FLAMES Survey of Massive Stars was an ESO Large Programme to understand rotational mixing and stellar mass-loss in different metallicity environments, in order to better constrain massive star evolution. We gathered high-quality spectra of over 800 stars in the Galaxy and in the Magellanic Clouds. A sample of this size is unprecedented, enabled by the first high-resolution, wide-field, multi-object spectrograph on an 8-m telescope. We developed spectral analysis techniques that, in combination with non-LTE, line-blanketed model atmospheres, were used to quantitatively characterise every star. The large sample, combined with the theoretical developments, has produced exciting new insights into the evolution of the most massive stars.

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