Astronomy and Astrophysics – Astrophysics
Scientific paper
2006-02-14
Mon.Not.Roy.Astron.Soc.368:1110-1122,2006
Astronomy and Astrophysics
Astrophysics
13 pages, 6 figures (2 color). Accepted for publication in Monthly Notices of the Royal Astronomical Society, MNRAS, to appear
Scientific paper
10.1111/j.1365-2966.2006.10189.x
Gravitational waves (GW) propagating through a magnetised plasma excite low-frequency magnetohydrodynamic (MHD) waves. In this paper we investigate whether these waves can produce observable radio emission at higher frequencies by scattering on an an-isotropic intrinsically relativistic distribution of electrons and positrons in the force-free wind surrounding a double neutron star binary merger. The relativistic particle distribution is assumed to be strictly along the magnetic field lines, while the magneto-plasma streams out at a relativistic speed from the neutron stars. In the case of Compton scattering of an incident MHD wave transverse to the magnetic field, we find that the probability of scattering to both a transverse x-mode and a quasi-transverse Langmuir-o mode is suppressed when the scattered frequency is below the local relativistic gyro-frequency, i.e. when the magnetic field is very strong.
Kuijpers Jan
Moortgat Joachim
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