1998A&A...333.1001M


Query : 1998A&A...333.1001M

1998A&A...333.1001M - Astronomy and Astrophysics, volume 333, 1001-1006 (1998/5-3)

Kelvin-Helmholtz instabilities in stellar jets. IV. On the origin of the emission knots.

MICONO M., MASSAGLIA S., BODO G., ROSSI P. and FERRARI A.

Abstract (from CDS):

We discuss the spatial evolution into biconical shocks of axisymmetric perturbations in supersonic jets subject to non-equilibrium radiative losses. Our aim is to interpret the origin of the knots, observed along many jets in Young Stellar Objects (YSOs), in terms of shocks originated by Kelvin-Helmholtz modes. In this scheme, we find that the [S II]/Hα line intensity ratios and the mean intra-knot spacing result connected to each other, and we show the evolution of the shock morphologies as a consequence of shock merging effects. From the numerical calculations we also obtain the knot proper motion velocities and the line flux behavior along the jet and make comparisons with the observations.

Abstract Copyright:

Journal keyword(s): hydrodynamics - instabilities - ISM: jets and outflows - stars: premain sequence

Simbad objects: 3

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Number of rows : 3
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 HH 34 HH 05 35 31.30 -06 28 43.0     16     ~ 477 2
2 NAME HH 1-2 HH 05 36 22.8 -06 46 03           ~ 208 1
3 HH 111 HH 05 51 44.2 +02 48 34           ~ 397 0

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2022.05.23-23:19:05

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