Neutron star envelopes
1982; IOP Publishing; Volume: 259; Linguagem: Inglês
10.1086/183840
ISSN1538-4357
AutoresE. H. Gudmundsson, C. J. Pethick, Richard I. Epstein,
Tópico(s)Geophysics and Gravity Measurements
Resumoview Abstract Citations (107) References (13) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Neutron star envelopes Gudmundsson, E. H. ; Pethick, C. J. ; Epstein, R. I. Abstract It is pointed out that the separate study of neutron star envelopes is a valuable technique for gaining insights into neutron star cooling calculations. It is shown that, to an excellent approximation, the temperature at the inner boundary of the envelope, Tb, is a function only of Ts to the 4th power over gs, where Ts is the effective temperature and gs is the surface gravity. This result makes it possible to investigate very simply the effects of general relativity and of opacity changes on the Tb - Ts relation and to compare calculations by different workers, even though they use different neutron star models. It is also shown that the most important opacity source for obtaining a reliable Tb - Ts relation is the conductive opacity of matter when the ions are liquid. Calculations are presented in which particular attention is given to this region and the best available opacities are used. Publication: The Astrophysical Journal Pub Date: August 1982 DOI: 10.1086/183840 Bibcode: 1982ApJ...259L..19G Keywords: Neutron Stars; Stellar Envelopes; Stellar Temperature; Opacity; Stellar Atmospheres; Stellar Gravitation; Stellar Luminosity; Surface Cooling; Astrophysics full text sources ADS |
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