Volume 442, Number 2, November I 2005
|Page(s)||L7 - L10|
|Published online||07 October 2005|
Letter to the Editor
Magnetic collimation of the relativistic jet in M 87
IASA and Section of Astrophysics, Astronomy and Mechanics, Department of Physics, University of Athens, Panepistimiopolis, 157 84 Zografos, Athens, Greece e-mail: firstname.lastname@example.org
2 Moscow Engineering Physics Institute (State University), Kashirskoje shosse 31, 115409 Moscow, Russia
Accepted: 27 August 2005
We apply a two-zone MHD model to the jet of M 87. The model consists of an inner relativistic outflow, which is surrounded by a non-relativistic outer disk-wind. The outer disk-wind collimates very well through magnetic self-collimation and confines the inner relativistic jet into a narrow region around the rotation axis. Further, we show by example, that such models reproduce very accurately the observed opening angle of the M 87 jet over a large range from the kiloparsec scale down to the sub-parsec scale.
Key words: MHD / methods: numerical / galaxies: jets / galaxies: individual: M 87
© ESO, 2005
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