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An equation of state from cool dense fluids to hot gases for mixed elements
Luo, GQ
1997-12-10
Source PublicationASTROPHYSICAL JOURNAL
ISSN0004-637X
Volume491Issue:1Pages:366-374
AbstractAn equation of state for the domain extending from hot gases to cool dense fluids is formulated for a hydrogen-helium mixture. The physical processes take account of temperature ionization and dissociation, electron degeneracy, Coulomb coupling, and pressure ionization. Pressure ionization and Coulomb coupling are studied with simple and comprehensive modeling. A single and complete algorithm is achieved, with explicit expressions available for the whole domain from hot gases to cool dense fluids (T > 10(2) K). Pressure ionization and Coulomb coupling have been examined for their contributions to the pressure and internal energy. The result reveals that their contributions smooth the variation of the pressure and internal energy in the region of pressure ionization even at very low temperatures.
Keywordatomic processes equation of state stars, low-mass brown dwarfs
WOS KeywordPRESSURE IONIZATION ; STELLAR ENVELOPES ; HYDROGEN ; PROBABILITY ; MODEL
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:A1997YL50700035
PublisherUNIV CHICAGO PRESS
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Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/37431
Collection中国科学院国家天文台
Corresponding AuthorLuo, GQ
AffiliationCHINESE ACAD SCI,BEIJING ASTRON OBSERV,BEIJING 100080,PEOPLES R CHINA
Recommended Citation
GB/T 7714
Luo, GQ. An equation of state from cool dense fluids to hot gases for mixed elements[J]. ASTROPHYSICAL JOURNAL,1997,491(1):366-374.
APA Luo, GQ.(1997).An equation of state from cool dense fluids to hot gases for mixed elements.ASTROPHYSICAL JOURNAL,491(1),366-374.
MLA Luo, GQ."An equation of state from cool dense fluids to hot gases for mixed elements".ASTROPHYSICAL JOURNAL 491.1(1997):366-374.
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