Electromagnetic Jets from Stars and Black Holes
arXiv:1504.02113 · doi:10.1103/PhysRevD.93.044038
Abstract
We present analytic force-free solutions modeling rotating stars and black holes immersed in the magnetic field of a thin disk that terminates at an inner radius. The solutions are exact in flat spacetime and approximate in Kerr spacetime. The compact object produces a conical jet whose properties carry information about its nature. For example, the jet from a star is surrounded by a current sheet, while that of a black hole is smooth. We compute an effective resistance in each case and compare to the canonical values used in circuit models of energy extraction. These solutions illustrate all of the basic features of the Blandford-Znajek process for energy extraction and jet formation in a clean setting.
30 pages. v2: minor edits, matches published version
References in corpus (9)
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- Numerically solving the relativistic Grad-Shafranov equation in Kerr spacetimes: Numerical techniques
- Consistent Blandford-Znajek Expansion
- Near-horizon Extreme Kerr Magnetospheres
- Conservation laws and evolution schemes in geodesic, hydrodynamic and magnetohydrodynamic flows
- Force-Free Foliations
- Analytic properties of force-free jets in the Kerr spacetime -- III: uniform field solution
- Astrophysical jets from boosted compact objects
- On the existence of the Blandford-Znajek monopole for a slowly rotating Kerr black hole
- Blandford-Znajek Process in Quadratic Gravity
- Blandford-Znajek jets in MOdified Gravity
- Toward a Full MHD Jet Model of Spinning Black Holes--II: Kinematics and Application to the M87 Jet
- Towards a Full MHD Jet Model of Spinning Black Holes--I: Framework and a split monopole example
- Crystals of gauged solitons, force free plasma and resurgence
- Blandford-Znajek process in vacuo and its holographic dual
- Force-free electrodynamics near rotation axis of a Kerr black hole
- Plasma Waves and Jets from Moving Conductors
- Signatures of Extra Dimensions in Black Hole Jets
- Universality of the Blandford-Znajek emission in stationary and axisymmetric spacetimes
- Axion-Photon Conversion Signals from Neutron Stars with Spacetime Curvature Accounted for in the Magnetosphere Model
- General Grad-Shafranov Equation