Multicomponent stellar wind from hot subdwarfs stars

0354882 - ASÚ 2011 RIV NL eng J - Článek v odborném periodiku
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
Grant CEP: GA ČR GP205/09/P476
Výzkumný záměr: CEZ:AV0Z10030501
Klíčová slova: stellar wind * hot subdwarfs * decoupling
Kód oboru RIV: BN - Astronomie a nebeská mechanika, astrofyzika
Impakt faktor: 1.437, rok: 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.
Trvalý link: http://hdl.handle.net/11104/0193787