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Mass-Loss Rates of Very Massive Stars

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Very Massive Stars in the Local Universe

Part of the book series: Astrophysics and Space Science Library ((ASSL,volume 412))

Abstract

We discuss the basic physics of hot-star winds and we provide mass-loss rates for (very) massive stars. Whilst the emphasis is on theoretical concepts and line-force modelling, we also discuss the current state of observations and empirical modelling, and we address the issue of wind clumping.

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Notes

  1. 1.

    Note however that these winds are also driven by a myriad of lines, forming a “pseudo” continuum of lines.

  2. 2.

    Note that for every Fe atom there are as many as 2,500 H atoms (for a solar abundance pattern; see Anders and Grevesse 1989).

  3. 3.

    Note that Pauldrach et al. (2012) argue that VMS winds remain optically thin.

  4. 4.

    This might be different for B supergiants below the bi-stability jump (see Petrov et al. 2014).

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Correspondence to Jorick S. Vink .

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© 2015 Springer International Publishing Switzerland

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Vink, J.S. (2015). Mass-Loss Rates of Very Massive Stars. In: Vink, J. (eds) Very Massive Stars in the Local Universe. Astrophysics and Space Science Library, vol 412. Springer, Cham. https://doi.org/10.1007/978-3-319-09596-7_4

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