Physics
Scientific paper
Dec 1995
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995pnas...9211442b&link_type=abstract
Proceedings of the National Academy of Sciences of the United States of America, Volume 92, Issue 25, pp. 11442-11446
Physics
16
Scientific paper
I will discuss several issues related to the acceleration, collimation, and propagation of jets from active galactic nuclei. Hydromagnetic stresses provide the best bet for both accelerating relativistic flows and providing a certain amount of initial collimation. However, there are limits to how much "self-collimation" can be achieved without the help of an external pressurized medium. Moreover, existing models, which postulate highly organized poloidal flux near the base of the flow, are probably unrealistic. Instead, a large fraction of the magnetic energy may reside in highly disorganized "chaotic" fields. Such a field can also accelerate the flow to relativistic speeds, in some cases with greater efficiency than highly organized fields, but at the expense of self-collimation. The observational interpretation of jet physics is still hampered by a dearth of unambiguous diagnostics. Propagating disturbances in flows, such as the oblique shocks that may constitute the kiloparsec-scale "knots" in the M87 jet, may provide a wide range of untapped diagnostics for jet properties.
No associations
LandOfFree
The Acceleration and Collimation of Jets does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The Acceleration and Collimation of Jets, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Acceleration and Collimation of Jets will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1563905