The sphericity effects in the NLTE model atmospheres of hot white dwarfs.

Details The sphericity effects in the NLTE model atmospheres of hot white dwarfs. The sphericity effects in the NLTE model atmospheres of hot white dwarfs.

Jul 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995a%26a...299..803k&link_type=abstract

Astronomy and Astrophysics, v.299, p.803

Astronomy and Astrophysics

Astrophysics

11

Stars: Atmospheres, Line: Profiles, White Dwarfs

Scientific paper

Plane parallel and spherically symmetric pure hydrogen model atmospheres for hot (60000K<=T_eff_<=140000K) high gravity (logg=6.0, 7.5) stars are calculated and compared. Small differences typically below 1% in the temperature structure were found. These differences produce detectable differences in lower Balmer line profiles, especially in the Halpha_ line. The Lyman lines remain unaffected. The continuum flux is found to be lowered in spherical geometry, especially for our hottest models.

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