2001A&A...376.1073M


C.D.S. - SIMBAD4 rel 1.7 - 2021.03.08CET19:34:01

2001A&A...376.1073M - Astronomy and Astrophysics, volume 376, 1073-1079 (2001/9-4)

Optically thick Herbig-Haro jets in photoionized regions.

MASCIADRI E. and RAGA A.C.

Abstract (from CDS):

Over the last few years, a number of Herbig-Haro (HH) jets have been discovered within the confines of H II regions. These jets apparently are ejected from low mass stars that are similar to the sources of other ``normal'' HH jets, but the flows show some special characteristics which are a result of the photoionization due to the ionizing photons emitted by the star that excites the H II region. In this paper, we present HH jet models including an external, photoionizing radiation field, and study the effects of increasing ionizing photon fluxes F* on the structure of the head of the jet. We find that the morphology, the emission line fluxes and the line ratios change drastically as a function of increasing F*. These results give general guidelines for deciding whether an HH jet actually does lie within an H II region, based on the morphology and spectroscopic characteristics of the object.

Abstract Copyright:

Journal keyword(s): ISM: HH objects - hydrodynamics - methods: numerical

CDS comments: in ref list Reipurth 1986A&A...164...51R instead of 164.61

Simbad objects: 8

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Number of rows : 8

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 HH 505 HH 05 34 40.8 -05 22 39           ~ 14 1
2 * tet01 Ori C ** 05 35 16.4664092288 -05 23 22.897102710 4.20 5.15 5.13 4.91 4.73 O7Vp 1294 1
3 M 42 HII 05 35 17.3 -05 23 28           ~ 3778 0
4 HH 34 HH 05 35 31.30 -06 28 43.0     16     ~ 472 2
5 NAME Ori A MoC 05 38 -07.1           ~ 2746 0
6 * sig Ori Y*O 05 38 44.7665260139 -02 36 00.284709290 2.54 3.58 3.79 3.87 4.11 O9.5V 754 0
7 Haro 5-27 Or* 05 39 39.8261219095 -02 31 21.866213622 14.589   14.30 13.92 13.073 K5.5 60 0
8 HH 111 HH 05 51 44.2 +02 48 34           ~ 389 0

    Equat.    Gal    SGal    Ecl

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2021.03.08-19:34:01

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