2004A&A...424L...1B


Query : 2004A&A...424L...1B

2004A&A...424L...1B - Astronomy and Astrophysics, volume 424, L1-4 (2004/9-3)

The X-ray emission mechanism in the protostellar jet HH 154.

BONITO R., ORLANDO S., PERES G., FAVATA F. and ROSNER R.

Abstract (from CDS):

We study the mechanism causing the X-ray emission recently detected in protostellar jets, by performing a detailed modeling of the interaction between a supersonic jet originating from a young stellar object and the ambient medium, for various values of density contrast, ν, between the ambient density and the jet, and of Mach number, M; radiative losses and thermal conduction have been taken into account. Here we report a representative case which reproduces, without any ad hoc assumption, the characteristics of the X-ray emission recently observed in the protostellar jet HH154. We find that the X-ray emission originates from a localized blob, consistent with observations, which moves with velocity v ∼500 km/s ; we therefore predict the X-ray source to have a detectable proper motion.

Abstract Copyright:

Journal keyword(s): ISM: Herbig-Haro objects - ISM: individual objects: HH 154 - ISM: jets and outflows - X-rays: ISM

Simbad objects: 7

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Number of rows : 7
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 LDN 1551 DNe 04 31 30.0 +18 12 30           ~ 790 1
2 RAFGL 5123 Y*O 04 31 34.07736 +18 08 04.9020           K3V/M3III 834 0
3 OMC 3 MoC 05 35 20.0 -05 01 00           ~ 249 1
4 HH 2 HH 05 36.4 -06 47           ~ 338 1
5 HH 80 HH 18 19 06.1 -20 51 49           ~ 97 0
6 HH 81 HH 18 19 06.7 -20 51 06           ~ 86 0
7 LDN 291 DNe 18 20.0 -20 59           ~ 17 0

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2022.05.28-22:54:55

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