The Particle Content of Extragalactic Jets
arXiv:astro-ph/0605734 · doi:10.1086/505861
Abstract
Recent x-ray and radio data from radio sources in galaxy clusters are used to show that the pdV work required to inflate the radio lobes exceeds all other energy estimates deduced from the radio emission. If the required jet energy density has an isotropic pressure, then in almost all cases the jet cannot be confined by an external medium. This problem can be resolved with jets dominated by cold protons, but even here the accompanying energy density in relativistic electons can cause decollimation. Electron-positron jets cannot solve this problem unless they are highly beamed with unusual energy distributions. Poynting flux jets may be a viable alternative.
14 pages, 3 figures, to be published in ApJ
Cited by in corpus (6)
- Heating Hot Atmospheres with Active Galactic Nuclei
- High-energy neutrinos in the context of multimessenger physics
- MHD simulations of jet acceleration from Keplerian accretion disks: the effects of disk resistivity
- Using Radio Bubbles to Constrain the Matter Content of AGN Jets
- Gamma-ray emission associated with Cluster-scale AGN Outbursts
- Limits on the AGN activities in X-ray underluminous galaxy groups