Abstract
We study the structure of protoneutron stars within the finite-temperature Brueckner–Bethe–Goldstone many-body theory. If nucleons, hyperons, and leptons are present in the stellar core, we find that neutrino trapping stiffens considerably the equation of state, because hyperon onsets are shifted to larger baryon density. However, the value of the critical mass turns out to be smaller than the “canonical” value 1.44M ⊙. We find that the inclusion of a hadron-quark phase transition increases the critical mass and stabilizes it at about 1.5–1.6M ⊙.
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Burgio, G.F., Baldo, M., Nicotra, O.E., Schulze, H.J. (2007). A microscopic equation of state for protoneutron stars. In: Zane, S., Turolla, R., Page, D. (eds) Isolated Neutron Stars: From the Surface to the Interior. Springer, Dordrecht. https://doi.org/10.1007/978-1-4020-5998-8_48
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DOI: https://doi.org/10.1007/978-1-4020-5998-8_48
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