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Neutron star cooling and pion condensationThe nonstandard cooling of a neutron star with the central pion core is explored. By adopting the latest results from the pion condensation theory, neutrino emissivity is calulated for both pure charged pions and a mixture of charged and neutral pions, and the equations of state are constructed for the pion condensate. The effect of superfluidity on cooling is investigated, adopting methods more realistic than in previous studies. Our theoretical models are compared with the currently updated observational data, and possible implications are explored.
Document ID
19950030869
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Umeda, Hideyuki
(Montana State Univ. Bozeman, MT, United States)
Nomoto, Ken'ichi
(Univ. of Tokyo Tokyo, Japan)
Tsuruta, Sachiko
(Montana State Univ. Bozeman, MT, United States)
Muto, Takumi
(Kyoto Univ. Kyoto, Japan)
Tatsumi, Toshitaka
(Kyoto Univ. Kyoto, Japan)
Date Acquired
August 16, 2013
Publication Date
August 10, 1994
Publication Information
Publication: The Astrophysical Journal, Part 1
Volume: 431
Issue: 1
ISSN: 0004-637X
Subject Category
Astrophysics
Accession Number
95A62468
Funding Number(s)
CONTRACT_GRANT: NAGW-2208
CONTRACT_GRANT: NSF AST-90-13290
Distribution Limits
Public
Copyright
Other

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