Multiple perturber effects due to H-H and H-He collisions

Details Multiple perturber effects due to H-H and H-He collisions Multiple perturber effects due to H-H and H-He collisions

Jul 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009newar..53..252a&link_type=abstract

New Astronomy Reviews, Volume 53, Issue 7-10, p. 252-254.

Astronomy and Astrophysics

Astronomy

1

Scientific paper

In Allard and Kielkopf (Allard, N.F., Kielkopf, J.F., 2009. A&A, 493, 1155) we presented a temperature and density dependence of the Lyman-α line wing in DA white dwarfs atmospheres. In that paper, we pointed out that close collisions of many perturbers lead to the formation of a series of satellites in the far red wing of Lyman-α. Our study was restricted to H-H collisions but other perturbing species are also present in cool white dwarf atmospheres. We have now included the effects of He on the Lyman-α profile.

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