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Predictions of the effect of clumping on the wind properties of O-type stars

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    0368890 - ASÚ 2012 RIV FR eng J - Journal Article
    Muijres, L. - de Koter, A. - Vink, J.S. - Krtička, J. - Kubát, Jiří - Langer, N.
    Predictions of the effect of clumping on the wind properties of O-type stars.
    Astronomy & Astrophysics. Roč. 526, February (2011), A32/1-A32/11. ISSN 0004-6361. E-ISSN 1432-0746
    R&D Projects: GA ČR GA205/08/0003
    Institutional research plan: CEZ:AV0Z10030501
    Keywords : radiative transfer * early-type stars * massive stars
    Subject RIV: BN - Astronomy, Celestial Mechanics, Astrophysics
    Impact factor: 4.587, year: 2011

    Both empirical evidence and theoretical findings indicate that the stellar winds of massive early-type stars are inhomogeneous, i.e., porous and clumpy. For relatively dense winds, empirically derived mass-loss rates might be reconciled with predictions if these empirical rates are corrected for clumping. The predictions, however, do not account for structure in the wind. To allow for a consistent comparison, we investigate and quantify the effect of clumpiness and porosity of the outflow on the predicted wind energy and the maximal effect on the mass-loss rate of O-type stars.
    Permanent Link: http://hdl.handle.net/11104/0203104

     
     
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