Structure of hybrid protoneutron stars within the Nambu-Jona-Lasinio model
Journal Article
·
· Physical Review. D, Particles Fields
- INFN Sezione di Catania and Dipartimento di Fisica e Astronomia, Universita di Catania, Via Santa Sofia 64, 95123 Catania (Italy)
We investigate the structure of protoneutron stars (PNS) formed by hadronic and quark matter in {beta}-equilibrium described by appropriate equations of state (EOS). For the hadronic matter, we use a finite temperature EOS based on the Brueckner-Bethe-Goldstone many-body theory, with realistic two- and three-body forces. For the quark sector, we employ the Nambu-Jona-Lasinio model. We find that the allowed maximum masses are comprised in a narrow range around 1.8 solar masses, with a slight dependence on the temperature. Metastable hybrid protoneutron stars are not found.
- OSTI ID:
- 21250057
- Journal Information:
- Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 8 Vol. 77; ISSN PRVDAQ; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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