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Record Details

Record 32 of 13841
Spectroscopy of the DA white dwarfs - Automatic atmospheric parameterization and mass distribution
External Online Source: doi:10.1086/167020
Author and Affiliation:
Mcmahan, Robert K.(Harvard-Smithsonian Center for Astrophysics, Cambridge, MA, United States)
Abstract: A method for the automatic calculation of the atmospheric parameters (Teff and log g) of hydrogen-rich degenerate stars from low-resolution spectra is described, and then applied to the spectra of 53 DA white dwarfs. A value for the width of the DA mass distribution of sigma M/solar-M not greater than +0.10 is obtained using the proposed approach. The data indicate that the distribution is asymmetrically skewed to low masses; however, there is also evidence of a high-mass non-Gaussian tail.
Publication Date: Jan 01, 1989
Document ID:
19890035335
(Acquired Nov 28, 1995)
Accession Number: 89A22706
Subject Category: ASTROPHYSICS
Document Type: Journal Article
Publication Information: Astrophysical Journal, Part 1 (ISSN 0004-637X); 336; 409-420
Publisher Information: United States
Contract/Grant/Task Num: NSF AST-82-19474; NSF AST-85-15219; NAG5-287
Financial Sponsor: NASA; United States
Organization Source: Harvard-Smithsonian Center for Astrophysics; Cambridge, MA, United States
Description: 12p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: ASTRONOMICAL SPECTROSCOPY; ATMOSPHERIC MODELS; STELLAR ATMOSPHERES; WHITE DWARF STARS; MASS DISTRIBUTION; PARAMETERIZATION; SPECTRUM ANALYSIS; STELLAR MASS EJECTION; STELLAR MODELS; STELLAR SPECTRA
Imprint And Other Notes: Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 336, Jan. 1, 1989, p. 409-420.
Availability Source: Other Sources
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