Query : 2006A&A...449.1061D

2006A&A...449.1061D - Astronomy and Astrophysics, volume 449, 1061-1066 (2006/4-3)

MHD simulations of radiative jets from young stellar objects. Hα emission.


Abstract (from CDS):

We study the Hα emission from jets using two-dimensional axisymmetrical simulations. We compare the emission obtained from hydrodynamic (HD) simulations with that obtained from magnetohydrodynamics (MHD) simulations. The magnetic field is supposed to be present in the jet only, and with a toroidal configuration. The simulations have time-dependent ejection velocities and different intensities for the initial magnetic field. The results show an increase in the Hα emission along the jet for the magnetized cases with respect to the HD case. The increase in the emission is due to a better collimation of the jet in the MHD case, and to a small increase in the shock velocity. These results could have important implications for the interpretation of the observations of jets from young stellar objects.

Abstract Copyright:

Journal keyword(s): magnetohydrodynamics (MHD) - shock waves - methods: numerical - Herbig-Haro objects - ISM: jets and outflows - stars: winds, outflows

Simbad objects: 2

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Number of rows : 2
N Identifier Otype ICRS (J2000)
ICRS (J2000)
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
1 V* V1213 Tau Or* 04 31 37.5055489536 +18 12 24.383952396           K7 539 0
2 HH 111 HH 05 51 44.2 +02 48 34           ~ 397 0

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