APT4 - Spectral and Timing Appearances of the Galactic and Extragalatic Black Holes |
Speaker_ |
Page, Dany |
Talk _ |
Thermal evolution of strange stars |
Abstract _ |
I will describe the cooling evolution of a strange star in the two possible scenarios of a bare quark surface or in presence of a thin baryonic crust. In the case of a bare strange star, its thermal luminosity is dominated by pair production when the surface temperature is below 10 MeV and eventually photon emission by e-e bremsstrahlung from the "electrosphere" takes over. The corresponding luminosities are highly super-Eddington. In case some of the detected isolated cooling "neutron" stars are actually strange stars with a crust, present observational data strongly constrain the state of strange matter and allow to refine predictions for the bare star cases. |