Is there Quark Matter in (Low-Mass) Pulsars?
Astrophysics
2009-11-13 v1
Abstract
The effect of the QCD phase transition is studied for the mass-radius relation of compact stars and for hot and dense matter at a given proton fraction used as input in core-collapse supernova simulations. The phase transitions to the 2SC and CFL color superconducting phases lead to stable hybrid star configurations with a pure quark matter core. In supernova explosions quark matter could be easily produced due to -equilibrium, small proton fractions and nonvanishing temperatures. A low critical density for the phase transition to quark matter is compatible with present pulsar mass measurements.
Cite
@article{arxiv.0808.1049,
title = {Is there Quark Matter in (Low-Mass) Pulsars?},
author = {Irina Sagert and Giuseppe Pagliara and Matthias Hempel and Jürgen Schaffner-Bielich},
journal= {arXiv preprint arXiv:0808.1049},
year = {2009}
}
Comments
4 pages, 3 figures, talk given at the QM2008 conference, Jaipur, India, February 4-10, 2008, JPG in press