European
Network
The European Union is funding a European collaboration of ten institutions
to study sources of
gravitational waves in preparation for the upcoming generation of gravitational
wave detectors. The
project is running from September, 2000 for three years.
Within the EU network, the group is responsible for the
the part Perturbative time-evolutions.
The research will focus on:
Time-evolutions of perturbed rotating stars in
the slow-rotation limit.
Time-evolutions of perturbed rotating stars in
rapid rotation.
Matching of nonlinear evolutions to perturbative evolution
techniques.
In addition, the group is expected to contribute to the following
research efforts:
Perturbative studies of the pulsation modes of rotating
relativistic stars.
Studies of modes in rotating stars that are unstable
to the emission of gravitational waves;
improving understanding of the role
of such instabilities;
assessing the potential detectability
of associated GWs.
Further development of perturbative techniques for
extracting information from GW sources such
as mass, radius, rotation rate and
(in the case of NSs) the equation of state.
Development of appropriate gauge conditions for stable numerical
evolutions with Cactus.
Study of GWs from stable/unstable NS models in nonlinear evolutions
and comparison with
perturbative results.
Study of GWs in nonlinear evolutions of merging binary NSs and comparison
with results in the
post-Newtonian and close limit approximations.
For Questions or Comments contact K. Kokkotas kokkotas@astro.auth.gr