A Systematic Analysis of Hybrid Stars Using a Hadronic Equation of State Suitable for Core-Collapse Supernovae

Heinimann, Oliver; Hempel, Matthias; Thielemann, Friedrich‐Karl

doi:10.7566/jpscp.14.020804

Cited by 1 publication

(1 citation statement)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Of course, it is favorable if there is already a third family for cold compact stars, as discussed, e.g., in Refs. [44][45][46]. An extended phasecoexistence region, as seen for the B139 EOS, tends to reduce effects of the phase transition.…”

Section: Discussionmentioning

confidence: 99%

Hot third family of compact stars and the possibility of core-collapse supernova explosions

et al. 2016

Self Cite

View full text Add to dashboard Cite

A phase transition to quark matter can lead to interesting phenomenological consequences in corecollapse supernovae, e.g., triggering an explosion in spherically symmetric models. However, until now, this explosion mechanism was only shown to be working for equations of state that are in contradiction with recent pulsar mass measurements. Here, we identify that this explosion mechanism is related to the existence of a third family of compact stars. For the equations of state investigated, the third family is only pronounced in the hot, early stages of the protocompact star and absent or negligibly small at zero temperature and thus represents a novel kind of third family. This interesting behavior is a result of unusual thermal properties induced by the phase transition, e.g., characterized by a decrease of temperature with increasing density for isentropes, and can be related to a negative slope of the phase transition line in the temperature-pressure phase diagram.

show abstract

Section: Discussionmentioning

confidence: 99%