2008A&A...492..621M


C.D.S. - SIMBAD4 rel 1.7 - 2019.11.13CET14:35:16

2008A&A...492..621M - Astronomy and Astrophysics, volume 492, 621-630 (2008/12-4)

Kink instabilities in jets from rotating magnetic fields.

MOLL R., SPRUIT H.C. and OBERGAULINGER M.

Abstract (from CDS):

We have performed 2.5D and 3D simulations of conical jets driven by the rotation of an ordered, large-scale magnetic field in a stratified atmosphere. The simulations cover about three orders of magnitude in distance to capture the centrifugal acceleration as well as the evolution past the Alfven surface. We find that the jets develop kink instabilities, the characteristics of which depend on the velocity profile imposed at the base of the flow. The instabilities are especially pronounced with a rigid rotation profile, which induces a shearless magnetic field. The jet's expansion appears to be limiting the growth of Alfven mode instabilities.

Abstract Copyright:

Journal keyword(s): magnetohydrodynamics (MHD) - instabilities - ISM: jets and outflows - galaxies: quasars: general - gamma rays: bursts

Simbad objects: 2

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Number of rows : 2

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 HH 34 HH 05 35 31.30 -06 28 43.0     16     ~ 468 2
2 HH 212 HH 05 43 51.41 -01 02 53.1           ~ 257 1

    Equat.    Gal    SGal    Ecl

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2019.11.13-14:35:16

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