Photometry and spectroscopy of white dwarfs in wide binary systems.

Details Photometry and spectroscopy of white dwarfs in wide binary systems. Photometry and spectroscopy of white dwarfs in wide binary systems.

Mar 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998iappp..71...62m&link_type=abstract

I.A.P.P.P. Commun., No. 71, p. 62 - 68

Computer Science

White Dwarfs: Photometry, White Dwarfs: Spectroscopy, White Dwarfs: Binaries, White Dwarfs: Surveys

Scientific paper

The authors present representative flux-calibrated spectra of a sample of known white dwarfs in wide binary systems taken at Cerro Tololo Observatory. Classifications determined from prominent spectral features are given for these examples, as well as the overall distribution of the spectral types for the entire sample. In addition, photometric data for a subset of the stars in the sample are used to verify one of the techniques used to find new white dwarf candidates, and to update an absolute magnitude histogram comparing several different data sets. Finally, a white dwarf luminosity function is shown, from which a value for the age of the Galactic disk can be determined.

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