Abstract
view Abstract Citations (67) References (10) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Implications of the absolute magnitude distribution functions of DA and non-DA white dwarfs. Sion, E. M. Abstract The number distribution of absolute magnitudes in the sample of proper-motion-dominated white dwarfs of Liebert et al. (1983) and in the Palomar-Green sample is determined, and the distributions of DA and non-DA spectral types are analyzed on the basis of color-luminosity calibrations. The DA/non-DA ratios for the cool and hot ends of the distribution are found to be 2:1 and 6:1, respectively. Two mechanisms which can help explain the distribution functions are examined: a DA-to-DB transition at Te above 15,000 K via the diffusion-induced burning of surface H (as suggested by Michaud et al., 1984) and convective mixing of surface H in cooling DA stars at Te = 10,000-12,000 K. Publication: The Astrophysical Journal Pub Date: July 1984 DOI: 10.1086/162240 Bibcode: 1984ApJ...282..612S Keywords: Distribution Functions; Stellar Color; Stellar Evolution; Stellar Magnitude; Stellar Spectrophotometry; White Dwarf Stars; Balmer Series; Carbon; Helium; Iue; Astrophysics full text sources ADS | data products SIMBAD (1)
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
