Is there Quark Matter in (Low-Mass) Pulsars?

Details Is there Quark Matter in (Low-Mass) Pulsars? Is there Quark Matter in (Low-Mass) Pulsars?

2008-08-07

arxiv.org/abs/0808.1049v1

Astronomy and Astrophysics

Astrophysics

4 pages, 3 figures, talk given at the QM2008 conference, Jaipur, India, February 4-10, 2008, JPG in press

Scientific paper

10.1088/0954-3899/35/10/104079

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 $\beta$-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.

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