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Multicomponent stellar wind from hot subdwarfs stars
- 1.0354882 - ASÚ 2011 RIV NL eng J - Journal Article
Votruba, Viktor - Feldmeier, A. - Krtička, J. - Kubát, Jiří
Multicomponent stellar wind from hot subdwarfs stars.
Astrophysics and Space Science. Roč. 329, 1-2 (2010), s. 159-161. ISSN 0004-640X. E-ISSN 1572-946X
R&D Projects: GA ČR GP205/09/P476
Institutional research plan: CEZ:AV0Z10030501
Keywords : stellar wind * hot subdwarfs * decoupling
Subject RIV: BN - Astronomy, Celestial Mechanics, Astrophysics
Impact factor: 1.437, year: 2010
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.
Permanent Link: http://hdl.handle.net/11104/0193787
Number of the records: 1