Oak Ridge National Laboratory

Physics Division

Physics Division Seminars

Physics Division Seminars bring us speakers on a variety of physics related subjects. Usually these are held in the Building 6008 large Conference Room, at 3:00 pm on the chosen day, but times and locations may vary. For more information, contact our seminar chairman,

Alfredo Galindo-Uribarri
Tel (Office): (865) 574-6124  (FAX): (865) 574-1268


Thu., April 02, 2009, at 3:00 p.m. (refreshments at 2:40 p.m.)

Constraints on dense matter phases and EoS from compact stars

David Blaschke, University of Wroclaw, Wroclaw, Poland, & JINR Dubna, Russia
Building 6008 Conference Room

After a short introduction to modern observations of compact stars, which constitute different astrophysical objects such as pulsars, double neutron stars, accreting low-mass X-ray binaries, etc., we explain how to extract basic properties (mass, rotation frequency, magnetic field, surface temperature, etc.) from these data.

In the main body of the talk, we will explain a quantum field theoretical approach to the equation of state (EoS) and transport properties of dense matter with special emphasis on color superconducting quark matter phases and their importance for understanding the phenomenology of compact stars.

An outlook is given to the problem of generalizing the EoS to a wide enough range of densities, temperatures and isospin asymmetries in order to apply it for both supernova collapse simulations and heavy-ion collisions. This is one of the tasks attacked within the research networking program "Physics of Compact Stars" (2008-2013) of the European Science Foundation.