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Multicomponent stellar wind from hot subdwarfs stars

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Abstract

Stellar wind from hot subdwarf stars is mainly accelerated by the interaction of ultraviolet photospheric radiation with metals, mainly oxygen. Absorbing ions share momentum through Coulombic collisions with the remaining passive part of the plasma (namely protons). We found that in the case of the winds from hot subdwarfs, interactions could be so small that they stop the momentum transfer between the passive bulk of plasma and absorbing ions. As a result wind decouples at a certain point.

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Authors and Affiliations

  1. Astronomický Ústav, Akademie věd České Republiky, 251 65, Ondřejov, Czech Republic

    V. Votruba & J. Kubát

  2. Astrophysik, Institut für Physik, Universität Potsdam, Am Neuen Palais 10, 14469, Potsdam, Germany

    A. Feldmeier

  3. Ústav Teoretické Fyziky a Astrofyziky, Přírodověcká Fakulta, Masarykova Univerzita, Kotlářská 2, 611 37, Brno, Czech Republic

    V. Votruba & J. Krtička

Authors
  1. V. Votruba
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  2. A. Feldmeier
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  3. J. Krtička
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  4. J. Kubát
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Correspondence to V. Votruba.

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Votruba, V., Feldmeier, A., Krtička, J. et al. Multicomponent stellar wind from hot subdwarfs stars. Astrophys Space Sci 329, 159–161 (2010). https://doi.org/10.1007/s10509-010-0402-2

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  • DOI: https://doi.org/10.1007/s10509-010-0402-2

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