Multicomponent stellar wind from hot subdwarfs stars

作者:Votruba V*; Feldmeier A; Krticka J; Kubat J
来源:Astrophysics and Space Science, 2010, 329(1-2): 159-161.
DOI:10.1007/s10509-010-0402-2

摘要

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.

  • 出版日期2010-10