Multicomponent stellar wind from hot subdwarfs stars

Details Multicomponent stellar wind from hot subdwarfs stars Multicomponent stellar wind from hot subdwarfs stars

Oct 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010ap%26ss.329..159v&link_type=abstract

Astrophysics and Space Science, Volume 329, Issue 1-2, pp. 159-161

Astronomy and Astrophysics

Astrophysics

1

Stellar Wind, Hot Subdwarfs, Decoupling

Scientific paper

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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