On the central core in MHD winds and jets
arXiv:0810.4307 · doi:10.1111/j.1365-2966.2009.14964.x
Abstract
We demonstrate that the 1D cylindrical version of the Grad-Shafranov equation is more rich than classical self-similar ones, and more suitable for the astrophysical jets we observe. In particular, it allows us to describe the central (and, hence, the most energetic) part of the flow. Both relativistic and non-relativistic versions are discussed. It is shown that taking into account the finite pressure of the external media one can determine the magnetic flux within the central core. We found as well that for non-relativistic flows which are magnetically dominated near the origin the solution can be constructed only in the presense of the oblique shock near the base of a jet where the additional heating is to take place.
8 pages, 3 figures The typoes in the Fig.1 and Fig.3 have been corrected
References in corpus (9)
- General Relativistic Magnetohydrodynamic Simulations of Jet Formation and Large-Scale Propagation from Black Hole Accretion Systems
- Magnetic acceleration of ultra-relativistic jets in gamma-ray burst sources
- Magnetic acceleration of relativistic AGN jets
- Simulations of Ultrarelativistic Magnetodynamic Jets from Gamma-ray Burst Engines
- Further Indications of Jet Rotation in New Ultraviolet and Optical HST/STIS Spectra
- Self-Similar Force-Free Wind From an Accretion Disk
- Hot self-similar relativistic MHD flows
- Hydrodynamic Collimation of Relativistic Outflows: Semianalytic Solutions and Application to Gamma-Ray Bursts
- Magnetic acceleration of ultra-relativistic GRB and AGN jets
Cited by in corpus (29)
- Parabolic Jets from the Spinning Black Hole in M87
- Transformation of the Poynting flux into the kinetic energy in relativistic jets
- Recollimation Shocks in Magnetized Relativistic Jets
- Three-Dimensional Relativistic Magnetohydrodynamic Simulations of Current-Driven Instability. III. Rotating Relativistic Jets
- Causality and stability of cosmic jets
- Acceleration and collimation of relativistic MHD disk winds
- Analytical Solution of Magnetically Dominated Astrophysical Jets and Winds: Jet Launching, Acceleration, and Collimation
- M87 black hole mass and spin estimate through the position of the jet boundary shape break
- Intrinsic Physical Conditions and Structure of Relativistic Jets in Active Galactic Nuclei
- Laboratory modeling of jets from young stars using plasma focus facilities
- On the structure of the magnetic field near a black hole in active galactic nuclei
- First-generation Science Cases for Ground-based Terahertz Telescopes
- Kink Instability of Force-Free Jets: a Parameter Space Study
- Synchrotron intensity plots from a relativistic stratified jet
- Jet in jet in M87
- Brightness temperature - obtaining physical properties of non-equipartition plasma
- CLEAN imaging systematics of M87 radio jet
- Parabolic jet shape on parsec scales in high redshift AGN
- On the Internal Structure of Relativistic Jets with Zero Velocity Along the Axis
- Efficient acceleration of cylindrical jets: effects of radiative cooling and tangled magnetic field
- On the Radio Image of Relativistic Jets -- I. Internal Structure, Doppler Boosting, and Polarization Maps
- On the M87 jet structure near the central engine
- The correlation between the total magnetic flux and the total jet power
- On the possible core shift break in relativistic jets
- Magnetization of Relativistic Current-Carrying Jets with Radial Velocity Shear
- Jet MHD analytical model - framework for radiative transfer
- Relativistic polytrope from the collimation and acceleration profiles of the M87 jet at subparsec scales and thermodynamic evidence for the Blandford-Znajek mechanism
- Tension of toroidal magnetic field in reconnection plasmoids and relativistic jets
- Magnetic field and plasma number density from radio and millimeter core measurements in AGN jets