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dc.contributor.authorBravo Guil, Eduardo
dc.contributor.authorGarcía Senz, Domingo
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Física i Enginyeria Nuclear
dc.date.accessioned2013-04-15T14:34:19Z
dc.date.available2013-04-15T14:34:19Z
dc.date.created1999-08
dc.date.issued1999-08
dc.identifier.citationBravo, E.; Garcia, D. Coulomb corrections to the equation of state of nuclear statistical equilibrium matter: implications for SNIa nucleosynthesis and the accretion-induced collapse of white dwarfs. "Monthly notices of the Royal Astronomical Society", Agost 1999, vol. 307, núm. 4, p. 984-992.
dc.identifier.issn0035-8711
dc.identifier.urihttp://hdl.handle.net/2117/18798
dc.description.abstractCoulomb corrections to the equation of state of degenerate matter are usually neglected in high-temperature regimes, owing to the inverse dependence of the plasma coupling constant, G, on temperature. However, nuclear statistical equilibrium matter is characterized by a large abundance by mass of large-Z (iron group) nuclei. It is found that Coulomb corrections to the ion ideal gas equation of state of matter in nuclear statistical equilibrium are important at temperatures T≲5–10×109 K and densities ρ≳108 g cm−3. At a temperature T=8.5×109 K and a density ρ=8×109 g cm−3, the neutronization rate is larger by ≳28 per cent when Coulomb corrections are included. However, the conductive velocity of a thermonuclear deflagration wave in C-O drops by ∼16 per cent when Coulomb corrections to the heat capacity are taken into account. The implications for SNIa models and nucleosynthesis, and also for the accretion-induced collapse of white dwarfs, are discussed. Particularly relevant is the result that the minimum density for collapse of a white dwarf to a neutron star is shifted down to 5.5–6×109 g cm−3, a value substantially lower than previously thought.
dc.format.extent9 p.
dc.language.isoeng
dc.subjectÀrees temàtiques de la UPC::Física::Astronomia i astrofísica
dc.subject.lcshSupernovae
dc.titleCoulomb corrections to the equation of state of nuclear statistical equilibrium matter: implications for SNIa nucleosynthesis and the accretion-induced collapse of white dwarfs
dc.typeArticle
dc.subject.lemacSupernoves
dc.contributor.groupUniversitat Politècnica de Catalunya. GAA - Grup d'Astronomia i Astrofísica
dc.identifier.doi10.1046/j.1365-8711.1999.02694.x
dc.description.peerreviewedPeer Reviewed
dc.relation.publisherversionhttp://onlinelibrary.wiley.com/doi/10.1046/j.1365-8711.1999.02694.x/pdf
dc.rights.accessOpen Access
drac.iddocument1222164
dc.description.versionPostprint (published version)
upcommons.citation.authorBravo, E.; Garcia, D.
upcommons.citation.publishedtrue
upcommons.citation.publicationNameMonthly notices of the Royal Astronomical Society
upcommons.citation.volume307
upcommons.citation.number4
upcommons.citation.startingPage984
upcommons.citation.endingPage992


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