White dwarfs

Details White dwarfs White dwarfs

Jun 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988esasp.281a..17w&link_type=abstract

In ESA, A Decade of UV Astronomy with the IUE Satellite, Volume 1 p 17-27 (SEE N89-10682 01-89)

Astronomy and Astrophysics

Astronomy

5

Iue, Spaceborne Astronomy, Ultraviolet Astronomy, White Dwarf Stars, Stellar Atmospheres, Stellar Composition, Stellar Spectra, Stellar Temperature

Scientific paper

The IUE contribution to the study of white dwarf stars is reviewed. Hot DA stars, calibration problems in the SWP range, the 1400/1600 A quasimolecular features in cool spectra, the helium-rich DB and DBA stars, and cooler non-DA stars with UV carbon lines of type DQ and metal lines of type DZ are discussed. It is shown that carbon abundances are only weakly dependent on T(eff). For dredge-up this implies helium-layers of different thickness. Hot white dwarfs with metal lines, especially the PG 1159 class, are mentioned.

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