Other
Scientific paper
Jul 1995
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995pobeo..49..171m&link_type=abstract
Publications de l'Observatoire Astronomique de Beograd, No. 49, p. 171 - 174
Other
White Dwarfs: Stellar Atmospheres, Radiative Transfer: Stellar Atmospheres
Scientific paper
The influence of the processes of radiative charge transfer and photoassociation during He++He collisional processes, as well as the process of the photodissociation of He+2 molecular ion, on the formation of continuous spectrum of the DB white dwarf atmospheres with Teff = 12000 - 20000K, for log g = 8, is studied within the wavelength range λ = 200 - 600 nm. It is shown that the contribution of these processes relative to other relevant radiative processes is particularly important for Teff ≤ 16000K, and increases with the decrease of Teff. Moreover, it is found that the influence of the considered He++He radiative processes is particularly pronounced in the ultra violet range.
Dimitrijevic Milan S.
Djuric Z.
Ignjatovic Ljubinko M.
Mihajlov Anatolij A.
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