A Grid of FASTWIND NLTE Model Atmospheres of Massive Stars

Details A Grid of FASTWIND NLTE Model Atmospheres of Massive Stars A Grid of FASTWIND NLTE Model Atmospheres of Massive Stars

2006-09-22

arxiv.org/abs/astro-ph/0609628v1

Astronomy and Astrophysics

Astrophysics

9 pages, 17 figures, to be published in ASP Conference Series, Proceeding of the Standardisation Workshop, held in Blankenberg

Scientific paper

In the last few years our knowledge of the physics of massive stars has improved tremendously. However, further investigations are still needed, especially regarding accurate calibrations of their fundamental parameters. To this end, we have constructed a comprehensive grid of NLTE model atmospheres and corresponding synthetic spectra in the massive star domain. The grid covers the complete B type spectral range, extended to late O on the hot side and early A on the cool side, from supergiants to dwarfs and from weak stellar winds to very strong ones. It has been calculated with the latest version of the FASTWIND code. The analysis of an extensive sample of OB stars in the framework of the COROT space mission will lead to accurate calibrations of effective temperatures, gravities, mass loss rates etc. This paper contains a detailed description of the grid, which has been baptised as BSTAR06 and which will be available for further research in the near future.

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