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dc.contributor.authorFischer, T.
dc.contributor.authorSagert, I.
dc.contributor.authorPagliara, G.
dc.contributor.authorHempel, M.
dc.contributor.authorSchaffner-Bielich, J.
dc.contributor.authorRauscher, T.
dc.contributor.authorThielemann, Friedrich-Karl
dc.contributor.authorKaeppeli, R.
dc.contributor.authorMartinez-Pinedo, G.
dc.contributor.authorLiebendoerfer, M.
dc.date.accessioned2013-04-24T14:50:05Z
dc.date.available2013-04-24T14:50:05Z
dc.date.issued2011-06
dc.identifier.citationFischer , T , Sagert , I , Pagliara , G , Hempel , M , Schaffner-Bielich , J , Rauscher , T , Thielemann , F-K , Kaeppeli , R , Martinez-Pinedo , G & Liebendoerfer , M 2011 , ' Core-collapse supernova explosions triggered by a quark-hadron phase transition during the early post-bounce phase ' , Astrophysical Journal, Supplement Series , vol. 194 , no. 2 , 39 . https://doi.org/10.1088/0067-0049/194/2/39
dc.identifier.issn0067-0049
dc.identifier.otherPURE: 1611630
dc.identifier.otherPURE UUID: 2f57e915-fbe5-438b-954c-53a081ea2298
dc.identifier.otherWOS: 000291675700023
dc.identifier.otherScopus: 79959512783
dc.identifier.urihttp://hdl.handle.net/2299/10516
dc.description.abstractWe explore explosions of massive stars, which are triggered via the quark-hadron phase transition during the early post-bounce phase of core-collapse supernovae. We construct a quark equation of state, based on the bag model for strange quark matter. The transition between the hadronic and the quark phases is constructed applying Gibbs conditions. The resulting quark-hadron hybrid equations of state are used in core-collapse supernova simulations, based on general relativistic radiation hydrodynamics and three-flavor Boltzmann neutrino transport in spherical symmetry. The formation of a mixed phase reduces the adiabatic index, which induces the gravitational collapse of the central protoneutron star (PNS). The collapse halts in the pure quark phase, where the adiabatic index increases. A strong accretion shock forms, which propagates toward the PNS surface. Due to the density decrease of several orders of magnitude, the accretion shock turns into a dynamic shock with matter outflow. This moment defines the onset of the explosion in supernova models that allow for a quark-hadron phase transition, where otherwise no explosions could be obtained. The shock propagation across the neutrinospheres releases a burst of neutrinos. This serves as a strong observable identification for the structural reconfiguration of the stellar core. The ejected matter expands on a short timescale and remains neutron-rich. These conditions might be suitable for the production of heavy elements via the r-process. The neutron-rich material is followed by proton-rich neutrino-driven ejecta in the later cooling phase of the PNS where the vp-process might occur.en
dc.format.extent28
dc.language.isoeng
dc.relation.ispartofAstrophysical Journal, Supplement Series
dc.rightsOpen
dc.subjectEQUATION-OF-STATE
dc.subjectsupernovae: general
dc.subjectQUANTUM CHROMODYNAMICS
dc.subjectstars: neutron
dc.subjectBLACK-HOLE FORMATION
dc.subjectII SUPERNOVAE
dc.subjectROTATING MASSIVE STARS
dc.subjectNUCLEAR-MATTER
dc.subjectPRESUPERNOVA EVOLUTION
dc.subjectPARTICLE PHYSICS
dc.subjectNEUTRINO RADIATION HYDRODYNAMICS
dc.subjectELECTRON-CAPTURE SUPERNOVAE
dc.titleCore-collapse supernova explosions triggered by a quark-hadron phase transition during the early post-bounce phaseen
dc.contributor.institutionSchool of Physics, Astronomy and Mathematics
dc.contributor.institutionScience & Technology Research Institute
dc.contributor.institutionCentre for Astrophysics Research
dc.description.statusPeer reviewed
dc.relation.schoolSchool of Physics, Astronomy and Mathematics
dc.description.versiontypeFinal Accepted Version
dcterms.dateAccepted2011-06
rioxxterms.versionAM
rioxxterms.versionofrecordhttps://doi.org/10.1088/0067-0049/194/2/39
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue
herts.rights.accesstypeOpen


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