Equation of state for the MCFL phase and its implications for compact star models

Details Equation of state for the MCFL phase and its implications for compact star models Equation of state for the MCFL phase and its implications for compact star models

2010-10-14

arxiv.org/abs/1010.3041v2

Phys.Rev.D83:043009,2011

Astronomy and Astrophysics

Astrophysics

High Energy Astrophysical Phenomena

11 pp. 11 figures

Scientific paper

10.1103/PhysRevD.83.043009

Using the solutions of the gap equations of the magnetic-color-flavor-locked (MCFL) phase of paired quark matter in a magnetic field, and taking into consideration the separation between the longitudinal and transverse pressures due to the field-induced breaking of the spatial rotational symmetry, the equation of state (EoS) of the MCFL phase is self-consistently determined. This result is then used to investigate the possibility of absolute stability, which turns out to require a field-dependent bag constant to hold. That is, only if the bag constant varies with the magnetic field, there exists a window in the magnetic field vs. bag constant plane for absolute stability of strange matter. Implications for stellar models of magnetized (self-bound) strange stars and hybrid (MCFL core) stars are calculated and discussed.

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