Masses and radii of white-dwarf stars. III - Results for 110 hydrogen-rich and 28 helium-rich stars

Abstract

view Abstract Citations (201) References (72) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Masses and radii of white-dwarf stars. III. Results for 110 hydrogen-rich and 28 helium-rich stars. Shipman, H. L. Abstract The basic method for calculating stellar radii is briefly described. It is claimed that systematic errors in the method are approximately 5% for the hydrogen-rich stars, taking into account a discussion of systematic errors in support of that statement. Procedures strictly relevant to the calculations for the H-rich stars are given and procedures for the He-rich stars are discussed. Selection effects are also examined. It is found that the mean radius of a sample of 110 hydrogen-rich stars with parallaxes and good photometry is 0.0127 solar radius. The mean radius of a sample of 28 He-rich stars is 0.0111 solar radius, which, considering the uncertainties, is not significantly different from that of the DA stars. Publication: The Astrophysical Journal Pub Date: February 1979 DOI: 10.1086/156841 Bibcode: 1979ApJ...228..240S Keywords: Helium; Hydrogen; Radii; Stellar Mass; White Dwarf Stars; Astronomical Photometry; Atmospheric Models; Dimensional Measurement; Error Analysis; H Lines; Parallax; Stellar Evolution; Stellar Spectra; Stellar Temperature; Astrophysics; Diameters:White Dwarfs; Masses:White Dwarfs full text sources ADS | data products SIMBAD (134) Related Materials (2) Part 1: 1972ApJ...177..723S Part 3: 1980ApJ...235..177S