Mass distribution of DA white dwarfs

Details Mass distribution of DA white dwarfs Mass distribution of DA white dwarfs

Mar 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984ap%26ss.100..471k&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 100, no. 1-2, March 1984, p. 471-473.

Astronomy and Astrophysics

Astrophysics

8

Mass Distribution, Stellar Mass, White Dwarf Stars, Error Analysis, Radii, Stellar Magnitude

Scientific paper

The arguments advanced by Guseinov et al. (1983) against the mass distributions and atmospheric parameters calculated by Koester et al. (1979) for type DA white dwarfs are examined critically. The selection effect resulting from the use of a magnitude-limited sample in determining the average mass (0.6 solar mass) is evaluated quantitatively and found to be negligible (less than 0.03 solar mass) for the value of the intrinsic-distribution width (0.1 solar mass) confirmed by the homogeneous-sample multichannel data of Weidemann and Koester (1984). The fact that the average mass of objects cooler than about 15,000 K is different than that for hotter objects is attributed to systematic errors in the models used or in the color transformations rather than to any error asymmetry.

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