Volume 403, Number 2, May IV 2003
|Page(s)||419 - 424|
|Published online||06 May 2003|
Gravitational radiation from the magnetic field of a strongly magnetized star
Departament d'Astronomia i Astrofísica, Universitat de València, Campus de Burjassot, 46100 Burjassot (València), Spain
2 Departament de Física Aplicada, Universitat d'Alacant, Apartat de Correus 99, 03080 Alacant, Spain
Corresponding author: R. Lapiedra, firstname.lastname@example.org
Accepted: 5 March 2003
We consider the electromagnetic (e.m.) field of a compact strongly magnetized star. The star is idealized as a perfect conducting sphere, rigidly rotating in a vacuum, with a magnetic moment not aligned with its rotation axis. Then we use the exterior e.m. solution, obtained by Deutsch ([CITE]) in his classic paper, to calculate the gravitational waves emitted by the e.m. field when its wavelength is much longer than the radius of the star. In some astrophysical situations, this gravitational radiation can overcome the quadrupole one emitted by the matter of the star, and, for some magnetars, would be detectable in the near future, once the present detectors, planned or under construction, become operative.
Key words: gravitational waves / stars: magnetic fields / stars: neutron
© ESO, 2003
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