Apr 25 – 29, 2016
Istanbul
Europe/Istanbul timezone

Some new aspects of the QCD phase transition in proto-neutron stars and core-collapse supernovae

Apr 25, 2016, 11:20 AM
50m
Bogazici University-Rectorate Building (Istanbul)

Bogazici University-Rectorate Building

Istanbul

Boğaziçi University 34342 Bebek/Istanbul Turkey

Speaker

Matthias Hempel (Basel University)

Description

Recently it was shown that a phase transition to deconfined quark matter can lead to the formation of a novel kind of third family of compact stars, that is present only in the hot, early stages of their evolution. Such a feature can be related to unusual thermal properties of the equation of state in the phase coexistence region, which manifest themselves as a negative slope of the phase transition line in the pressure-temperature phase diagram. A third family is interesting for core-collapse supernovae, as a collapse from the second to the third branch could trigger an explosion, as indicated in previous works. In addition, the unusual thermal properties could lead to a special, inverted form of convection in proto-neutron stars.

Presentation materials