ar X iv : a st ro - p h / 06 09 52 4 v 2 2 5 Se p 20 06 Astronomy meets QCD : cooling constraints for the theories of internal structure of compact objects
نویسنده
چکیده
We discuss a set of tests which confront observations of cooling compact objects and theories of their thermal evolution. As an example we apply the recently developed LogNLog S test of compact star cooling theories to hybrid stars with a color superconducting quark matter core, we also apply and discuss other existing tests. While there is not yet a microscopically founded superconducting quark matter phase which would fulfill constraints from cooling phenomenology, we explore the hypothetical 2SC+X phase and show that the magnitude and density-dependence of the X-gap can be chosen to satisfy a set of tests: the temperature – age (T-t) test, the LogN-Log S test, the brightness constraint, and the mass spectrum constraint. Some recent modifications of the population synthesis model used to obtain the LogN-Log S distribution are briefly discussed. In addition, we propose to use the age-distance diagram as a new tool to study the local population of young isolated neutron stars.
منابع مشابه
ar X iv : a st ro - p h / 06 09 52 4 v 1 1 9 Se p 20 06 Astronomy meets QCD : cooling constraints for the theories of internal structure of compact objects
We discuss a set of tests which confront observations of cooling compact objects and theories of their thermal evolution. As an example we apply the recently developed LogNLog S test of compact star cooling theories to hybrid stars with a color superconducting quark matter core, we also apply and discuss other existing tests. While there is not yet a microscopically founded superconducting quar...
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