2012AJ....143..106K

Query : 2012AJ....143..106K

2012AJ....143..106K - Astron. J., 143, 106 (2012/May-0)

Proper motions of the HH 110/270 system.

KAJDIC P., REIPURTH B., RAGA A.C., BALLY J. and WALAWENDER J.

Abstract (from CDS):

We present a study of the HH 110/270 system based on three sets of optical images obtained with the ESO New Technology Telescope, the Subaru Telescope, and the Hubble Space Telescope (HST). The ground-based observations are made in the Hα and [S II] emission lines and the HST observations are made in the Hα line only. Ground-based observations reveal the existence of nine knots, which have not been previously discussed and offer some important insight into the HH 110/270 history. We perform a kinematic study of the HH 110/270 system and an analysis of its emission properties. We measure proper motions of all the knots in the system. Four of the newly identified knots belong to the HH 270 jet. Their positions indicate that the jet's axis changed its direction in the past. We speculate that similar changes may have occurred many times in the past and this could be part of the reason for the unusual structure of the HH 110 jet. The HST observations allow us to resolve individual knots into their substructures and to measure their proper motions. These measurements show that the knots are highly turbulent structures. Finally, we report the discovery of four new Herbig-Haro (HH) objects located near the HH 110/270 system.

Abstract Copyright: ∼

Journal keyword(s): Herbig-Haro objects - ISM: individual (HH 110, HH 270) - ISM: jets and outflows - stars: formation

Nomenclature: Table 2: <%M HH 110 A'> (Nos P', R', T-V) added, HH 270 ZN (Nos Z1-Z4), HH 451 A (Nos A-C), HH 490 A (Nos A-C), HH NNNN (Nos 1032-1035) added.

CDS comments: Figure 3: reflection nebula not identified; the radio sources are [RRR98] VLA 1 and [RRR98] VLA 2 in Simbad.

Simbad objects: 44

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Number of rows : 44
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 NAME Ori B MoC 05 41 43.0 -01 54 44           ~ 1498 0
2 [RRR98] VLA 2 Rad 05 48 45.60 +02 55 22.6           ~ 5 0
3 HH 1035 HH 05 50 40.0 +02 47 10           ~ 1 0
4 HH 1034 HH 05 51 04.0 +02 48 26           ~ 2 0
5 HH 1033 HH 05 51 08.0 +02 41 52           ~ 1 0
6 HH 490 HH 05 51 22.0 +02 48 10           ~ 3 0
7 2MASS J05512257+0255433 NIR 05 51 22.57 +02 55 43.4           ~ 9 0
8 GNRB HH 110 10 IR 05 51 22.8 +02 56 01           ~ 10 0
9 HH 451 HH 05 51 23.0 +02 54 55           ~ 3 0
10 IRAS 05487+0255 IR 05 51 23.5 +02 55 53           ~ 21 0
11 HH 110P HH 05 51 23.6 +02 53 50           ~ 8 0
12 HH 110I HH 05 51 24.1 +02 54 42           ~ 8 0
13 HH 110M HH 05 51 24.4 +02 54 34           ~ 8 0
14 HH 110H HH 05 51 24.6 +02 54 52           ~ 9 0
15 HH 110 HH 05 51 24.929 +02 54 52.28           ~ 92 0
16 HH 110J HH 05 51 25.0 +02 54 32           ~ 8 0
17 HH 110C HH 05 51 25.3 +02 55 18           ~ 10 0
18 HH 110B HH 05 51 25.5 +02 55 31           ~ 10 0
19 HH 110A HH 05 51 25.6 +02 55 40           ~ 12 0
20 HH 110E HH 05 51 28.1 +05 55 03           ~ 8 0
21 HH 270 HH 05 51 29.953 +02 56 04.91           ~ 32 0
22 HH 270A HH 05 51 30.0 +02 56 05           ~ 5 0
23 HH 270C HH 05 51 30.9 +02 56 17           ~ 3 0
24 HH 270B HH 05 51 31.1 +02 56 04           ~ 4 0
25 IRAS 05489+0256 IR 05 51 32.6 +02 56 43           ~ 15 0
26 HH 270D HH 05 51 33.5 +02 56 37           ~ 3 0
27 HH 270E HH 05 51 34.2 +02 56 40           ~ 3 0
28 NAME HH 270 IRS Rad 05 51 34.9 +02 56 42           ~ 13 0
29 HH 1032 HH 05 51 42.0 +02 45 36           ~ 1 0
30 HH 111 HH 05 51 44.207 +02 48 33.87           ~ 418 0
31 LDN 1617 DNe 05 51 46 +02 48.5           ~ 62 0
32 HH 121 HH 05 51 46.2 +02 48 32           ~ 39 0
33 HH 112 HH 05 51 51.639 +03 00 28.34           ~ 6 0
34 HH 110Q HH ~ ~           ~ 7 0
35 HH 110F HH ~ ~           ~ 4 0
36 HH 491 HH ~ ~           ~ 3 0
37 HH 110G HH ~ ~           ~ 3 0
38 HH 110L HH ~ ~           ~ 7 0
39 HH 110D HH ~ ~           ~ 5 0
40 HH 110K HH ~ ~           ~ 5 0
41 HH 110N HH ~ ~           ~ 8 0
42 HH 110S HH ~ ~           ~ 5 0
43 HH 110R HH ~ ~           ~ 5 0
44 HH 110O HH ~ ~           ~ 6 0

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