Query : 2003A&A...412..745R

2003A&A...412..745R - Astronomy and Astrophysics, volume 412, 745-749 (2003/12-4)

Hiding the high excitation in the head of a fast Herbig-Haro jet.


Abstract (from CDS):

We propose that some low excitation HH objects might correspond to the head of a pulsed jet moving into a dense environment. We develop an analytic model showing that the head of such a jet will move slowly, producing a low excitation bow shock. At the times at which the successive pulses catch up with the jet head, high excitation emission will be produced, lasting for a time of the order of the cooling timescale of the material heated in the pulse/jet head interaction. In this way, the jet head has ``flashes'' of high excitation emission superimposed on a ``quiescent'', low excitation emission.

Abstract Copyright:

Journal keyword(s): ISM: Herbig-Haro objects - ISM: jets and outflows - ISM: kinematics and dynamics - shock waves

Simbad objects: 3

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Number of rows : 3
N Identifier Otype ICRS (J2000)
ICRS (J2000)
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2023
1 NAME HH 7-11 FIR 03 29 03.9 +31 16 06           ~ 347 0
2 HH 34 HH 05 35 31.30 -06 28 43.0     16     ~ 482 2
3 HH 111 HH 05 51 44.2 +02 48 34           ~ 403 0

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