The influence of ion-atom radiative collisions on the continuous optical spectra in helium-rich DB white-dwarf atmospheres

Details The influence of ion-atom radiative collisions on the continuous optical spectra in helium-rich DB white-dwarf atmospheres The influence of ion-atom radiative collisions on the continuous optical spectra in helium-rich DB white-dwarf atmospheres

Jul 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994a%26a...287.1026m&link_type=abstract

Astronomy and Astrophysics 287, 1026-1028 (1994)

Astronomy and Astrophysics

Astrophysics

8

White Dwarfs, Radiation Mechanisms: Thermal, Atomic Processes, Stars: Atmospheres

Scientific paper

We investigate the influence of radiative processes due to He^+^(1s)-He(1s^2^) collisions on the continuous optical spectrum of the helium-rich DB white-dwarf atmospheres. We show that these ion-atom collision processes are important in certain layers of the studied white dwarf atmosphere, and that the corresponding contributions to the optical depth and continuous opacity are not negligible.

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