Abstract
view Abstract Citations (89) References (54) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Theoretical Models for Asteroseismology of DA White Dwarf Stars Bradley, P. A. Abstract Because white dwarfs are the most common end state of stellar evolution, determining their internal structure will yield many clues about the final stages of stellar evolution and the physics of matter under extreme conditions. We present the results of our parametric survey of evolutionary models of compositionally stratified white dwarfs with hydrogen surface layers (DA white dwarfs) and provide a comprehensive set of theoretical g-mode pulsation periods for comparison to observations of pulsating DA white dwarfs. This survey complements the previous survey of helium atmosphere (DB) white dwarf periods of Bradley, Winget, & Wood. We show how to use the periods of low-overtone and/or trapped modes to constrain the internal structure of pulsating DA white dwarfs by utilizing their sensitivity to the total stellar mass and the location of the hydrogen/helium transition zone. We use G117-B15A as an example to demonstrate the potential of our models for asteroseismology; we suggest that G117-B15A has a mass of 0.55 Msun and a hydrogen layer mass of ≍ 1.5 × 10-4 M*. Publication: The Astrophysical Journal Pub Date: September 1996 DOI: 10.1086/177696 Bibcode: 1996ApJ...468..350B Keywords: STARS: EVOLUTION; STARS: INTERIORS; STARS: WHITE DWARFS; STARS: OSCILLATIONS full text sources ADS | data products SIMBAD (10)
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.
