Schwarzschild black holes as unipolar inductors: expected electromagnetic power of a merger

  title={Schwarzschild black holes as unipolar inductors: expected electromagnetic power of a merger},
  author={Maxim Lyutikov},
  journal={Physical Review D},
  • M. Lyutikov
  • Published 4 January 2011
  • Physics
  • Physical Review D
The motion of a Schwarzschild black hole with velocity v{sub 0}={beta}{sub 0}c through a constant magnetic field B{sub 0} in vacuum induces a component of the electric field along the magnetic field, generating a nonzero second Poincare electromagnetic invariant {sup *}F{center_dot}F{ne}0. This will produce (e.g., via radiative effects and vacuum breakdown) an electric charge density of the order of {rho}{sub ind}=B{sub 0{beta}0}/(2{pi}eR{sub G}), where R{sub G}=2GM/c{sup 2} is the… 

Figures from this paper

Slowly balding black holes
The 'no-hair' theorem, a key result in general relativity, states that an isolated black hole is defined by only three parameters: mass, angular momentum, and electric charge; this asymptotic state
Astrophysical jets from boosted compact objects
We perform full 3D numerical simulations of compact objects, such as black holes or neutron stars, boosted through an ambient forcefree plasma that posses a uniform magnetization. We study jet
Mergers of Charged Black Holes: Gravitational Wave Events, Short Gamma-Ray Bursts, and Fast Radio Bursts
The discoveries of GW 150914, GW 151226, and LVT 151012 suggest that double black hole (BH-BH) mergers are common in the universe. If at least one of the two merging black holes carries certain
Electromagnetic power of merging and collapsing compact objects
It is argued that the collapse of a NS into the BH happens smoothly, without natural formation of current sheets or other dissipative structures on the open field lines and, thus, does not allow the magnetic field to become disconnected from the star and escape to infinity.
Charging and Electromagnetic Radiation during the Inspiral of a Black Hole–Neutron Star Binary
Because mergers of black hole–neutron star (BH–NS) binaries are widely argued to produce both gravitational and electromagnetic waves, these binaries are among the most attractive systems in the era
Big black hole, little neutron star: Magnetic dipole fields in the Rindler spacetime
As a black hole and neutron star approach during inspiral, the field lines of a magnetized neutron star eventually thread the black hole event horizon and a short-lived electromagnetic circuit is
Boosted Kerr black holes in general relativity
A solution of Einstein's vacuum field equation is derived that describes a general boosted Kerr black hole relative to a Lorentz frame at future null infinity. The metric contains five independent
Influence of frame-dragging on magnetic null points near rotating black holes
Understanding the mechanisms of particle acceleration from the vicinity of black holes poses a challenge. Electromagnetic effects are thought to be a prime suspect, but details still need an
Blindly detecting orbital modulations of jets from merging supermassive black holes
In the last few years before merger, supermassive black hole binaries will rapidly inspiral and precess in a magnetic field imposed by a surrounding circumbinary disk. Multiple simulations suggest
Analytic properties of the electromagnetic field of binary compact stars and electromagnetic precursors to gravitational waves
We analytically study the properties of the electromagnetic field in vacuum around close binary compact stars containing at least one neutron star. We show that the orbital motion of the neutron star


Black hole in a uniform magnetic field
Using the fact that a Killing vector in a vacuum spacetime serves as a vector potential for a Maxwell test field, we derive the solution for the electromagnetic field occurring when a stationary,
Magnetospheres of black hole systems in force-free plasma
The interaction of black holes with ambient magnetic fields is important for a variety of highly energetic astrophysical phenomena. We study this interaction within the force-free approximation in
Time-dependent Force-free Pulsar Magnetospheres: Axisymmetric and Oblique Rotators
Magnetospheres of many astrophysical objects can be accurately described by the low-inertia (or ''force-free'') limit of MHD. We present a new numerical method for solution of equations of force-free
Electrodynamics of an Outer Gap Accelerator: Formation of a Soft Power-Law Spectrum between 100 MeV and 3 GeV
We investigate a stationary pair production cascade in the outer magnetosphere of a spinning neutron star. The charge depletion due to global flows of charged particles causes a large electric field
The Afterglow of massive black hole coalescence
The final merger of a pair of massive black holes in a galactic nucleus is compelled by gravitational radiation. Gravitational waves from the mergers of black holes of masses 105-107(1 + z)-1 M☉ at
Numerical simulations of aligned neutron star magnetospheres
ABSTRA C T We present detailed numerical simulations of the magnetosphere of an isolated neutron star in which the spin and magnetic dipole axes of the star are aligned. We demonstrate that stable
Pair formation above pulsar polar caps: Structure of the low altitude acceleration zone
Solutions are presented for the space-charge-limited flow of electrons above the polar caps of a pulsar whose magnetic moment has a component parallel to its spin angular momentum, when the
The association of an electromagnetic signal with the merger of a pair of supermassive black holes would have many important implications. For example, it would provide new information about gas and
Although recent work in numerical relativity has made tremendous strides in quantifying the gravitational wave luminosity of black hole mergers, very little is known about the electromagnetic
Modeling Flows Around Merging Black Hole Binaries
Coalescing massive black hole binaries are produced by the mergers of galaxies. The final stages of the black hole coalescence produce strong gravitational radiation that can be detected by the