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6 papers · 1 filter
The quadrupole moment of slowly rotating fluid balls
Michael Bradley, Gyula Fodor
In this paper we use the second order formalism of Hartle to study slowly and rigidly rotating stars with focus on the quadrupole moment of the object. The second order field equat…
Response to ``Comment on `Primordial magnetic seed field amplification by gravitational waves' "
G. Betschart, C. Zunkel, P. K. S. Dunsby +1
Here we respond to the comment by Tsagas (gr-qc/0503042) on our paper gr-qc/0503006. We show that the results in that comment are flawed and cannot be used for drawing conclusion a…
Slowly rotating fluid balls of Petrov type D
Michael Bradley, Daniel Eriksson, Gyula Fodor +1
The second order perturbative field equations for slowly and rigidly rotating perfect fluid balls of Petrov type D are solved numerically. It is found that all the slowly and rigid…
Graviton mediated photon-photon scattering in general relativity
G. Brodin, D. Eriksson, M. Marklund
In this paper we consider photon-photon scattering due to self-induced gravitational perturbations on a Minkowski background. We focus on four-wave interaction between plane waves…
Nonlinear Interactions Between Gravitational Radiation and Modified Alfven Modes in Astrophysical Dusty Plasmas
Mats Forsberg, Gert Brodin, Mattias Marklund +2
We present an investigation of nonlinear interactions between Gravitational Radiation and modified Alfvén modes in astrophysical dusty plasmas. Assuming that stationary charged dus…
On inhomogeneous magnetic seed fields and gravitational waves within the MHD limit
Caroline Zunckel, Gerold Betschart, Peter K S Dunsby +1
In this paper we apply second-order gauge-invariant perturbation theory to investigate the possibility that the non-linear coupling between gravitational waves (GW) and a large sca…