The recent measurement of two solar mass pulsars has initiated an intense discussion on its
impact on our understanding of the high-density matter in the cores of neutron stars. A task …

In strong magnetic fields the transport coefficients of strange quark matter become
anisotropic. We determine the general form of the complete set of transport coefficients in the …

The purpose and motivation of these lectures can be summarized in the following two
questions:• What is the ground state (and its properties) of dense matter?• What is the matter …

We study the principal core g-mode oscillation in hybrid stars containing quark matter and
find that they have an unusually large frequency range (≈ 200–600 Hz) compared to …

This short review aims at giving a brief overview of various states of matter that have been
suggested to exist in the ultra-dense centers of neutron stars. Particular emphasis is put on …

The rotation frequencies of young pulsars are systematically below their theoretical Kepler
limit. r-modes have been suggested as a possible explanation for this observation. With the …

We study the bulk viscosity of dense matter, taking into account nonlinear effects that arise in
the large amplitude'supra-thermal'region where the deviation of the chemical potentials from …

We propose and apply a new parametrization of the modified chiral effective model to study
rotating neutron stars with hyperon cores in the framework of the relativistic mean-field …

Non-axisymmetric, meridional circulation inside a neutron star, excited by a glitch and
persisting throughout the post-glitch relaxation phase, emits gravitational radiation. Here, it …

We study the viscous damping of r-modes of compact stars and analyze in detail the regions
where small amplitude modes are unstable to the emission of gravitational radiation. We …