Theoretical Astrophysics

T-6, Theoretical Astrophysics and

Some recent investigations of the thermal equilibrium properties of kinks in a 1+1-dimensional, classical Φ 4 field theory are reviewed. The distribution function, kink density, correlation function, and certain thermodynamic quantities were studied both theoretically and via large scale simulations. A simple double Gaussian variational approach within the transfer operator formalism was shown ...

Theoretical Nuclear Physics and Nuclear Astrophysics

Our research unit is part of an Interuniversity Attraction Poles (IAP) program, ​BriX (The Belgian Research Initiative on eXotic nuclei for atomic, nuclear and astrophysics studies), in which we collaborate with other nuclear-physics groups, both theoretical and experimental, in Belgium and abroad. Through this collaboration, there is a possibility for very motivated ULB students to realize ...

NUSTAR-T Theoretical Nuclear Structure, Astrophysics and Reactions

NUSTAR-T-05 Effective nuclear forces and low lying collective excitations in Sn 109 NUSTAR-T-07 Relativistic quasiparticle RPA with applications to exotic nuclei 111

Astrophysics.

Using the oscillation frequencies of α Cen A recently discovered by Bouchy & Carrier (2001, 2002), the available astrometric, photometric and spectroscopic data, we tried to improve the calibration of the visual binary system α Cen. With the revisited masses of Pour-baix et al. (2002) we do not succeed to obtain a solution satisfying all the seismic observational constraints. Relaxing the const...

Astrophysics.