Gravitational and electromagnetic emission by magnetized coalescing binary systems
arXiv:1101.5306 · doi:10.1007/s10509-011-0633-x
Abstract
We discuss the possibility to obtain an electromagnetic emission accompanying the gravitational waves emitted in the coalescence of a compact binary system. Motivated by the existence of black hole configurations with open magnetic field lines along the rotation axis, we consider a magnetic dipole in the system, the evolution of which leads to (i) electromagnetic radiation, and (ii) a contribution to the gravitational radiation, the luminosity of both being evaluated. Starting from the observations on magnetars, we impose upper limits for both the electromagnetic emission and the contribution of the magnetic dipole to the gravitational wave emission. Adopting this model for the evolution of neutron star binaries leading to short gamma ray bursts, we compare the correction originated by the electromagnetic field to the gravitational waves emission, finding that they are comparable for particular values of the magnetic field and of the orbital radius of the binary system. Finally we calculate the electromagnetic and gravitational wave energy outputs which result comparable for some values of magnetic field and radius.
9 pages, 3 figures, to appear in Astroph. Sp.Science
References in corpus (11)
- Analysis of spin precession in binary black hole systems including quadrupole-monopole interaction
- Magnetized Neutron Star Mergers and Gravitational Wave Signals
- Analytic modelling of tidal effects in the relativistic inspiral of binary neutron stars
- Magnetospheres of Black Hole Systems in Force-Free Plasma
- Coherent network analysis technique for discriminating gravitational-wave bursts from instrumental noise
- Binary black holes' effects on electromagnetic fields
- The lowest-mass stellar black holes: catastrophic death of neutron stars in gamma-ray bursts
- Gravitational waveforms for spinning compact binaries
- Application of energy and angular momentum balance to gravitational radiation reaction for binary systems with spin-orbit coupling
- The Relativistic Binary Pulsar B1913+16
- Short Gamma Ray Bursts as possible electromagnetic counterpart of coalescing binary systems
Cited by in corpus (3)
- Constraining the electric charges of some astronomical bodies in Reissner-Nordstrom spacetimes and generic r^-2-type power-law potentials from orbital motions
- Gravitational waves and electrodynamics: New perspectives
- On the role of magnetic fields into the dynamics and gravitational wave emission of binary neutron stars