A grid of Non-LTE model atmospheres and synthetic spectra for DO white dwarfs

Details A grid of Non-LTE model atmospheres and synthetic spectra for DO white dwarfs A grid of Non-LTE model atmospheres and synthetic spectra for DO white dwarfs

Oct 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007coska..37..189n&link_type=abstract

Contributions of the Astronomical Observatory Skalnaté Pleso, vol. 37, no. 3, p. 189-206.

Astronomy and Astrophysics

Astronomy

Stars: White Dwarfs, Model Atmospheres, Nlte Effect

Scientific paper

We present a grid of NLTE model atmospheres and synthetic spectra for hot helium-rich white dwarfs in order to elucidate the nature and characteristics of the progenitors of the DO white dwarfs. The grid coverage is 50000 ≤ Teff ≤ 120000 K with a step
of 2500 K and 7 ≤ log g ≤ 8.5 with a step of 0.25 dex, for three helium abundance values (He/H): 102, 103 and 104 by number. The spectra are synthesized with a sampling of 0.1 Angstrom and covering the wavelength range from 3000 to 7000 Angstrom. An
application to the observed spectra is given.
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