Chemical inhomogeneities in and from white dwarf spectra

Details Chemical inhomogeneities in and from white dwarf spectra Chemical inhomogeneities in and from white dwarf spectra

Mar 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979mmsai..50..133d&link_type=abstract

(Workshop on Chemical Inhomogeneities in the Galaxy, Frascati, Italy, May 29-June 2, 1978.) Società Astronomica Italiana, Memori

Other

Chemical Composition, Stellar Spectra, White Dwarf Stars, Atmospheric Composition, Inhomogeneity, Milky Way Galaxy, Stellar Atmospheres, Stellar Envelopes

Scientific paper

The paper discusses the chemical inhomogeneity inherent in white dwarf atmospheres from two points of view: (1) the striking bifurcation of spectral types (itself a chemical inhomogeneity) and (2) the white dwarf as an indicator of the chemistry of the progenitor's envelope. It is emphasized that the chemical composition of white dwarfs is not only the result of nuclear evolution, but also the result of other processes, such as sedimentation, convective mixing, and interstellar accretion.

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