Magnetic Jets from Swirling Disks
arXiv:astro-ph/0604424 · doi:10.1111/j.1365-2966.2006.10349.x
Abstract
A broad swathe of astrophysical phenomena, ranging from tubular planetary nebulae through Herbig-Haro objects, radio-galaxy and quasar emissions to gamma-ray bursts and perhaps high-energy cosmic rays, may be driven by magnetically-dominated jets emanating from accretion disks. We give a self-contained account of the analytic theory of non-relativistic magnetically dominated jets wound up by a swirling disk and making a magnetic cavity in a background medium of any prescribed pressure, p(z). We solve the time-dependent problem for any specified distribution of magnetic flux P(R,0) emerging from the disk at z=0, with any specified disk angular velocity Omega_d(R). The physics required to do this involves only the freezing of the lines of force to the conducting medium and the principle of minimum energy.
23 pages, 7 figures. To be published in MNRAS
References in corpus (1)
Cited by in corpus (7)
- The evolution of magnetic tower jets in the laboratory
- Disk-Jet Coupling in Black Hole Accretion Systems I: General Relativistic Magnetohydrodynamical Models
- Structure of Magnetic Tower Jets in Stratified Atmospheres
- Fields from a relativistic magnetic explosion
- Electromagnetic Fields in Jets
- Self-Similar Magnetic Arcades
- Jet Formation in MHD Simulations