Sign on

SAO/NASA ADS Astronomy Abstract Service

· Find Similar Abstracts (with default settings below)
· Full Refereed Journal Article (PDF/Postscript)
· Full Refereed Scanned Article (GIF)
· References in the article
· Citations to the Article (231) (Citation History)
· Refereed Citations to the Article
· Also-Read Articles (Reads History)
·
· Translate This Page
Title:
Evolution of crystallizing pure C-12 white dwarfs
Authors:
Lamb, D. Q.; van Horn, H. M.
Affiliation:
AA(Illinois, University, Urbana, Ill.), AB(Rochester, University, Rochester; C. E. Kenneth Mees Observatory, Bristol Springs, N.Y.)
Publication:
Astrophysical Journal, vol. 200, Sept. 1, 1975, pt. 1, p. 306-323. (ApJ Homepage)
Publication Date:
09/1975
Category:
Astrophysics
Origin:
STI
NASA/STI Keywords:
Astronomical Models, Crystallization, Dense Plasmas, Stellar Evolution, Stellar Temperature, White Dwarf Stars, Energy Dissipation, Equations Of State, Latent Heat, Mathematical Models, Stellar Envelopes, Tables (Data), Thermodynamics
DOI:
10.1086/153789
Bibliographic Code:
1975ApJ...200..306L

Abstract

Results of a quantitative analysis of white-dwarf evolution are presented for models employing an accurate dense-plasma equation of state and incorporating a full treatment of partial ionization as well as convection in the envelope. Results are discussed in detail for a pure C-12 star of 1 solar mass. It is shown that the cooling curve and luminosity function deviate substantially from the behavior predicted by Mestel's (1952) cooling theory due to neutrino energy losses and Debye cooling, and that crystallization occurs when the dimensionless parameter Gamma attains a value of 160. Stellar lifetime is increased by almost a factor of three in the phase preceding Debye cooling due to the combined effect of increased heat capacity and the release of latent heat during crystallization. The theoretical results are found to be consistent with observational data. The possibility of observing such stars is evaluated.

Printing Options

Print whole paper
Print Page(s) through

Return 600 dpi PDF to Acrobat/Browser. Different resolutions (200 or 600 dpi), formats (Postscript, PDF, etc), page sizes (US Letter, European A4, etc), and compression (gzip,compress,none) can be set through the Printing Preferences


More Article Retrieval Options

HELP for Article Retrieval
Bibtex entry for this abstract   Preferred format for this abstract (see Preferences)
  New!

Find Similar Abstracts:

Use: Authors
Title
Keywords (in text query field)
Abstract Text
Return: Query Results Return    items starting with number
Query Form
Database: Astronomy
Physics
arXiv e-prints