05/04/2010

Nuclear matter properties from neutron stars cooling

Deborah Aguilera, Ohio University

Observation of thermal emission from isolated neutron stars (INSs) can provide not only information on the physical conditions (magnetic field, temperature, composition, etc.) of the regions where this radiation is produced but also information on the properties of matter at higher densities in the star. On the other hand, recent monitoring of the quiescent thermal emission from the NS in low mass X-ray binary systems (LMXBs) after active periods (bursts) opened a new outlook to the physics of matter at lower densities. The theoretical modeling of the thermal relaxation of the crust may be used to establish constraints on the physics of the NS crust. I will present results for both, the long term cooling of INS's and the short term quiescent emission of LMXB's and compare them with recent observational data.