Fast magnetosonic waves driven by gravitational waves
Abstract
The propagation of a gravitational wave (GW) through a magnetized plasma is considered. In particular, we study the excitation of fast magnetosonic waves (MSW) by a gravitational wave, using the linearized general-relativistic hydromagnetic equations. We derive the dispersion relation for the plasma, treating the gravitational wave as a perturbation in a Minkowski background space-time. We show that the presence of gravitational waves will drive magnetosonic waves in the plasma and discuss the potential astrophysical implications.
- Publication:
-
Astronomy and Astrophysics
- Pub Date:
- October 2001
- DOI:
- 10.1051/0004-6361:20010839
- arXiv:
- arXiv:astro-ph/0107043
- Bibcode:
- 2001A&A...377..701P
- Keywords:
-
- GRAVITATIONAL WAVES;
- MHD WAVES;
- COMPACT OBJECTS: PULSARS;
- MAGNETARS;
- GRBS.;
- Astrophysics
- E-Print:
- 12 pages, 2 figures, Astronomy and Astrophysics in press