Formation of quark phases in compact stars and SN explosion
- Dipartimento di Fisica, Univ. Ferrara and INFN Ferrara (Italy)
- Institut fuer Theoretische Physik, J.W. Goethe Universitaet (Germany)
- Dipartimento di Fisica, Univ. L'Aquila and INFN Gran Sasso (Italy)
- INFN Gran Sasso, Theory Group (Italy)
We describe possible scenarios of quark deconfinement in compact stars and we analyze their astrophysical implications. The quark deconfinement process can proceed rapidly, as a strong deflagration, releasing a huge amount of energy in a short time and generating an extra neutrino burst. If energy is tranferred efficiently to the surface, like e.g. in the presence of convective instabilities, this burst could contribute to revitalize a partially failed SN explosion. We discuss how the neutrino observations from SN1987A would fit in this scenario. Finally, we focus on the fate of massive and rapidly rotating progenitors, discussing possible time separations between the moment of the core collapse and the moment of quark deconfinement. This mechanism can be at the basis of the interpretation of gamma ray bursts in which lines associated with heavy elements are present in the spectrum.
- OSTI ID:
- 21251458
- Journal Information:
- AIP Conference Proceedings, Vol. 1056, Issue 1; Conference: 6. international conference on perspectives in hadronic physics, Trieste (Italy), 12-16 May 2008; Other Information: DOI: 10.1063/1.3013050; (c) 2008 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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