TITLE

Astrophysical jets

AUTHOR(S)
Livio, Mario
PUB. DATE
June 2000
SOURCE
AIP Conference Proceedings;2000, Vol. 522 Issue 1, p275
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
I show that the assumption that the acceleration and collimation mechanisms of jets are the same in all the classes of astrophysical objects which are observed to produce jets, can lead to interesting conclusions. Jets have now been observed in: active galactic nuclei, young stellar objects, massive x-ray binaries, low mass x-ray binaries, black hole x-ray transients, symbiotic systems, planetary nebulae, and supersoft x-ray sources, and possibly recurrent novae and pulsars. An attempt is made to identify the necessary ingredients for the acceleration and collimation mechanisms. I show that most likely: (i) jets are produced at the center of accretion disks, and are accelerated and collimated hydromagnetically, (ii) the production of powerful jets may require a hot corona or access to an additional heat/wind source associated with the central object. Tentative explanations for the presence of jets in some classes of objects and absence in others are given. Some critical observation that can test the ideas presented in this paper are suggested. © 2000 American Institute of Physics.
ACCESSION #
6028988

 

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