J/A+A/672/L1ivo://CDS.VizieR/J/A+A/672/L1doi:10.26093/cds/vizier.36729001CDSHoward S.Guillot T.2024-11-06T20:03:47Z2023-03-23T08:30:52ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frastronomical-modelssolar-system-planetsThe equation of state for hydrogen and helium is fundamental to study stars and giant planets. It has been shown that, because of interactions at atomic and molecular levels, the behaviour of a mixture of hydrogen and helium cannot be accurately represented by considering these elements separately. Using on the one hand ab initio simulations which involve a system of interacting hydrogen and helium particles and pure equations of state for hydrogen and helium on the other, we derive the contributions in density and entropy of the interactions between hydrogen and helium particles.2023A&A...672L...1Hhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/672/L1CatalogResearchIsServedByTAP VizieR generic servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/672/L1https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/672/L1http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/672/L1https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/672/L1https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/672/L1http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/672/L1GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapdefaultJ/A+A/672/L1/tableb1Table of the mixing termsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintlogPPressure in Log (in dyn/cm^2^ unit)log(cm**-2)phys.pressuredoublelogTTemperature in Loglog(K)phys.temperaturefloatVmixVolume of mixingcm**3.g**-1phys.volumedoubleSmixEntropy of mixing (in erg/g/K unit)1e-07J.g**-1.K**-1stat.fit.paramdouble