An atlas of optical spectra of DZ white dwarfs and related objects

Details An atlas of optical spectra of DZ white dwarfs and related objects An atlas of optical spectra of DZ white dwarfs and related objects

Mar 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990apjs...72..707s&link_type=abstract

Astrophysical Journal Supplement Series (ISSN 0067-0049), vol. 72, March 1990, p. 707-714.

Astronomy and Astrophysics

Astrophysics

21

Stellar Spectra, Visible Spectrum, White Dwarf Stars, Radiative Transfer, Signal To Noise Ratios, Spectral Line Width, Stellar Atmospheres, Stellar Spectrophotometry

Scientific paper

An atlas of optical spectra and equivalent width measurements for DZ stars and several related objects is described. These data should improve abundance measurements for Ca/He, Mg/He, and Fe/He in these stars and provide tests for calculations of accretion, diffusion, and radiative transfer in white-dwarf atmospheres. Also reported is the possible detection of He I (3888-A) in three DZ white dwarfs, 0246 + 735, 1705 + 030, and 2215 + 388.

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