Evolutionary and pulsational properties of ultra-massive white dwarfs. The role of oxygen-neon phase separation.

dc.contributor.editorCastanheira, B.
dc.contributor.editorVanderbosch, Z.
dc.contributor.editorMontgomery, M.
dc.creatorDe Gerónimo, F.C.
dc.creatorCamisassa, M.E.
dc.creatorCórsico, A.H.
dc.creatorAlthaus, L.G.
dc.date.accessioned2018-12-19T16:26:09Z
dc.date.available2018-12-19T16:26:09Z
dc.date.issued2018-07
dc.descriptionThe 21st European Workshop on White Dwarfs was held in Austin, TX from July 23rd to 27th of 2018en_US
dc.description.abstractUltra-massive hydrogen-rich white dwarfs (WDs) are expected to harbor oxygen/neon cores resulting from semi-degenerate carbon burning when the progenitor star evolves through the super asymptotic giant branch (SAGB) phase. These stars are expected to be crystallized by the time they reach the ZZ Ceti domain. We show that crystallization leads to a phase separation of oxygen and neon in the core of ultra-massive WDs, which impacts markedly the pulsational properties, thus offering a unique opportunity to study the processes of crystallization and to infer the core chemical composition in WD stars.en_US
dc.description.departmentAstronomyen_US
dc.identifierdoi:10.15781/T2T14V89N
dc.identifier.urihttp://hdl.handle.net/2152/71589
dc.language.isoengen_US
dc.relation.ispartof21st European White Dwarf Workshopen_US
dc.rights.restrictionOpenen_US
dc.subjectwhite dwarfsen_US
dc.subjectultra-massive white dwarfsen_US
dc.subjectphase separationen_US
dc.subjectcrystallizationen_US
dc.titleEvolutionary and pulsational properties of ultra-massive white dwarfs. The role of oxygen-neon phase separation.en_US
dc.typeConference paperen_US
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