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Physics of Relativistic Jets on Sub-Milliarcsecond Scales

Published online by Cambridge University Press:  04 August 2017

Martin J. Rees
Martin J. Rees*
Affiliation:
Institute of Astronomy, Madingley Road, Cambridge CB3 OHA England

Extract

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The observed superluminal components have (deprojected) lengths of ~ 1020 cm, and imply relativistic bulk motions on these scales. There are, however, persuasive reasons for attributing the primary energy production to scales 1014–1015 cm. Moreover, the initial bifurcation and collimation must also be imposed on these small scales if the long-term stability of the jet axis in extended sources is due to the gyroscopic effect of a spinning black hole (Rees 1978). The issues I shall address in this talk are: how the jet gets from ~ 1015cm to ~ 1019 cm; and what VLBI data can tell us about the properties of galactic nuclei on scales below ~ 1019 cm — scales where optical and X-ray studies provide some evidence, but where there is no short-term hope of achieving spatial resolution.

Type
Research Article
Information
Symposium - International Astronomical Union , Volume 110: VLBI and Compact Radio Sources , 1984 , pp. 207 - 214
Copyright
Copyright © Reidel 1984 

References

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