2004A&A...426L..25C


Query : 2004A&A...426L..25C

2004A&A...426L..25C - Astronomy and Astrophysics, volume 426, L25-28 (2004/11-1)

3-D numerical simulations of rotating jets. The case of the DG Tau microjet.

CERQUEIRA A.H. and DE GOUVEIA DAL PINO E.M.

Abstract (from CDS):

We here present results of three-dimensional Smoothed Particle hydro and magnetohydrodynamics simulations of rotating jets, also including the effects of radiative cooling, precession and velocity variability. Using initial conditions and parameters which are particularly suitable for the DG Tau microjet, we have been able to approximately reproduce its complex knotty morphology and kinematics. We have also obtained radial velocity maps which are in good agreement with the data obtained by Bacciotti et al. (2002ApJ...576..222B), thus indicating that their interpretation that the DG Tau microjet is rotating is correct. Finally, we have found that a magnetic field of the order of ≃0.5mG is sufficient to collimate the jet against the lateral expansion that is caused by the centrifugal forces.

Abstract Copyright:

Journal keyword(s): ISM: jets and outflows: Herbig-Haro objects - stars: formation

Simbad objects: 4

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Number of rows : 4
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 V* DG Tau Or* 04 27 04.6921275888 +26 06 16.060169268 13.57 13.97 10.50 12.28   K6Ve 988 1
2 V* RW Aur TT* 05 07 49.5662483 +30 24 05.177426   10.86 9.60 9.95   K1/5e+K5e 756 0
3 WRAY 16-203 Or* 16 08 29.7275063376 -39 03 11.024360496   16.26 15.91 15.38 15.69 K0: 159 1
4 EM* LkHA 321 Or* 21 01 55.0706162280 +49 51 36.270580320   13.58 12.34 12.01   ~ 54 0

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2022.08.18-04:20:53

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