Busca avançada
Ano de início
Entree

Dynamics of the formation of a quark superconducting phase in nêutron stars

Processo: 03/06548-6
Linha de fomento:Bolsas no Exterior - Pesquisa
Vigência (Início): 21 de outubro de 2003
Vigência (Término): 20 de dezembro de 2003
Área do conhecimento:Ciências Exatas e da Terra - Astronomia - Astrofísica Estelar
Pesquisador responsável:Germán Lugones
Beneficiário:Germán Lugones
Anfitrião: Ignazio Bombaci
Instituição-sede: Pessoa Física
Local de pesquisa : Università di Pisa, Itália  
Assunto(s):Estrelas de nêutrons   Supernovas

Resumo

We propose to investigate the physical processes occurring during the transition from nuclear matter to quark superconducting matter in the course of formation of neutron stars and the observational signatures expected from this transition. Typical conditions of proto-neutron star birth, such as finite nuclear strangeness, finite temperature and neutrino trapping are to be included self-consistently in the analysis. Pairing will be included in the equations of state and in the nucleation rate of the quark bubbles. We shall also consider the possible formation of an intermediary two flavor superconducting phase, the production of strangeness in the deconfined phase, and the temperature dependence of the pairing gap. We shall investigate the impact of these processes for supernovae, gamma ray bursters, and compact stars. (AU)