1998AJ....116.1396R

Query : 1998AJ....116.1396R

1998AJ....116.1396R - Astron. J., 116, 1396-1411 (1998/September-0)

Herbig-Haro flows from the L1641-N embedded infrared cluster.

REIPURTH B., DEVINE D. and BALLY J.

Abstract (from CDS):

We have discovered a large number of Herbig-Haro (HH) flows associated with the embedded infrared cluster surrounding the IRAS source 05338-0624, the driving source of the L1641-N molecular outflow. The best collimated HH flow in the region, HH 303, stretches in two groups of knots along a well-defined axis from the VLA source that coincides with the IRAS source. This HH flow is coaxial with the blue northern lobe of the molecular flow. To the north-northwest of the cluster we find a long series of very large and finely shaped bow shocks, which stretch on a well-defined axis away from the cluster. The most distant HH object, HH 310, is 6.3 pc in projection from the center of the cluster, making it the largest HH lobe known from a low-mass star. We identify the counterlobe with an already known chain of infrared H2 emission knots. Additionally, we find two very large fragmented bow shocks, HH 403 and 404, to the northeast of and facing away from the cluster. They lie on an axis that passes through the cluster at projected distances of 4.2 and 5.4 pc. In the opposite direction, to the southwest we identify the previously known object HH 127 at a projected distance of 5.2 pc from the cluster and within an angle of 10° of the HH 403/404 axis. HH 127 consists of three faint knots also on a line through the cluster. Precisely south of the VLA source and on the axis of the HH 303 jet, we find a large bow shock, HH 61, which is 5.9 pc in projection from the cluster, and which we believe is part of the counterflow to the HH 303 jet. Our CCD images and 13CO maps clearly show that HH 61 and HH 127 are located just beyond the well-defined edge of the L1641 cloud, which explains why they are optically visible. Our extensive C18O map of the region shows that the cluster is associated with a prominent cloud core. Our 12CO map reveals, in addition to the known L1641-N outflow, a large pair of compact low-velocity outflow lobes, a southeastern blueshifted lobe, and a northwestern redshifted lobe, separated by 2.7 pc and centered on the infrared cluster. The numerous outflows in the region provide evidence that a large number of the young stars in the loose cluster are presently in active mass-losing phases. The L1641-N cluster is clearly the presently most active site of low-mass star formation in the L1641 molecular cloud.

Abstract Copyright: ∼

Journal keyword(s): ISM: Clouds - ISM: Jets and Outflows - Stars: Formation - Stars: Pre-Main-Sequence

Nomenclature: HH NNN (Nos 296-298, 305-310, 316, 403-406).

Simbad objects: 107

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Number of rows : 107
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 NGC 1333 OpC 03 29 09.2 +31 20 59           ~ 1575 1
2 OMC 3 MoC 05 35 20.0 -05 01 00           ~ 301 1
3 IRAS 05329-0505 Y*O 05 35 26.746 -05 03 55.08           ~ 103 0
4 OMC 2 MoC 05 35 27 -05 10.1           ~ 475 1
5 HH 310A HH 05 35 49.4 -05 36 05           ~ 2 0
6 HH 310 HH 05 35 49.407 -05 36 05.10           ~ 8 0
7 HH 127 HH 05 35 50.1 -07 00 18           ~ 8 0
8 HH 316A HH 05 35 54.7 -06 04 54           ~ 1 0
9 HH 316 HH 05 35 54.744 -06 04 53.50           ~ 2 0
10 HH 308B HH 05 36 01.1 -06 00 25           ~ 2 0
11 HH 308 HH 05 36 01.132 -06 00 24.96           ~ 5 0
12 HH 316F HH 05 36 01.3 -06 04 13           ~ 1 0
13 HH 309A HH 05 36 03.1 -05 49 47           ~ 4 0
14 HH 309 HH 05 36 03.139 -05 49 47.10           ~ 6 0
15 HH 309D HH 05 36 05.4 -05 53 42           ~ 3 0
16 HH 307A HH 05 36 06.4 -06 02 57           ~ 3 0
17 HH 307 HH 05 36 07.656 -06 04 15.44           ~ 5 0
18 HH 307C HH 05 36 07.7 -06 04 15           ~ 3 0
19 HH 306 HH 05 36 08.068 -06 08 46.47           ~ 7 0
20 HH 306B HH 05 36 08.1 -06 08 46           ~ 4 0
21 HH 307F HH 05 36 09.0 -06 05 52           ~ 3 0
22 HH 299A HH 05 36 09.6 -06 20 00           ~ 1 0
23 HH 299 HH 05 36 10.0 -06 19 58           ~ 7 0
24 Parenago 2354 Or* 05 36 10.4378267832 -06 20 01.537653840   15.16 14.244   12.79105 K3 34 0
25 ESO-HA 1453 Or* 05 36 11.4651716928 -06 22 22.120577652     19.604   15.646 K7 35 0
26 HH 296 HH 05 36 11.6 -06 17 23           ~ 2 0
27 HH 62 HH 05 36 12.8 -07 11 02           ~ 6 0
28 HH 61 HH 05 36 12.8 -07 07 02           ~ 13 0
29 HH 297 HH 05 36 15.7 -06 16 33           ~ 2 0
30 NAME LDN 1641 North HII 05 36 17.6 -06 22 10           ~ 252 0
31 HH 308A HH 05 36 18.1 -06 02 53           ~ 2 0
32 HH 303 HH 05 36 18.2 -06 19 47           ~ 7 0
33 V* V832 Ori TT* 05 36 18.4801435704 -06 20 38.754371328     14.52   13.53233 M0 49 0
34 HH 303I HH 05 36 18.7 -06 21 14           ~ 2 0
35 NAME LDN 1641-N VLA Rad 05 36 18.78 -06 22 10.5           ~ 5 0
36 [CTS93] N 12 Or* 05 36 18.8837862264 -06 22 04.236070548           M3 11 0
37 HH 303B HH 05 36 19.1 -06 19 35           ~ 4 0
38 [KSP2003] J053619.56-062215.2 IR 05 36 19.56 -06 22 15.2           ~ 5 0
39 HH 298A HH 05 36 21.7 -06 21 51           ~ 4 0
40 HH 298 HH 05 36 21.712 -06 21 51.47           ~ 4 0
41 HH 305A HH 05 36 23.4 -06 15 44           ~ 3 0
42 HH 305 HH 05 36 23.431 -06 15 43.59           ~ 5 0
43 HH 305B HH 05 36 24.0 -06 16 31           ~ 3 0
44 V* V2676 Ori Or* 05 36 24.4812921600 -06 22 23.305916244     19.604   15.429 M4 35 0
45 V* PR Ori Or* 05 36 24.9926892648 -06 17 32.551271232   12.59 11.40 10.89   K1.0 57 0
46 HH 305F HH 05 36 25.4 -06 19 44           ~ 3 0
47 HH 305E HH 05 36 25.4 -06 18 29           ~ 3 0
48 HH 304A HH 05 36 37.0 -06 14 55           ~ 3 0
49 HH 301C HH 05 36 39.0 -06 21 17           ~ 1 0
50 HH 302A HH 05 36 48.3 -06 20 38           ~ 1 0
51 HH 403H HH 05 36 57.0 -05 55 44           ~ 1 0
52 HH 403A HH 05 37 03.6 -05 52 54           ~ 1 0
53 HH 403 HH 05 37 03.8 -05 53 16           ~ 6 0
54 HH 404 HH 05 37 13.6 -05 44 29           ~ 5 0
55 HH 404A HH 05 37 15.7 -05 44 04           ~ 1 0
56 2MASS J05372474-0543365 Y*O 05 37 24.774 -05 43 36.35           ~ 13 0
57 HH 406 HH 05 37 38.8 -05 39 22           ~ 4 0
58 LDN 1641 MoC 05 39.0 -07 00           ~ 502 0
59 NAME Orion Molecular Cloud MoC 05 56 -01.8           ~ 1227 1
60 HH 316E HH ~ ~           ~ 1 0
61 HH 316D HH ~ ~           ~ 1 0
62 HH 316C HH ~ ~           ~ 1 0
63 HH 316B HH ~ ~           ~ 1 0
64 HH 310E HH ~ ~           ~ 2 0
65 HH 310D HH ~ ~           ~ 2 0
66 NAME L1641-N Chimney Rad ~ ~           ~ 2 0
67 HH 310C HH ~ ~           ~ 2 0
68 HH 310B HH ~ ~           ~ 2 0
69 HH 306G HH ~ ~           ~ 2 0
70 HH 306F HH ~ ~           ~ 2 0
71 HH 306E HH ~ ~           ~ 1 0
72 HH 306D HH ~ ~           ~ 1 0
73 HH 306C HH ~ ~           ~ 1 0
74 HH 306A HH ~ ~           ~ 1 0
75 HH 307E HH ~ ~           ~ 2 0
76 HH 307D HH ~ ~           ~ 1 0
77 HH 307B HH ~ ~           ~ 2 0
78 HH 309E HH ~ ~           ~ 2 0
79 HH 309C HH ~ ~           ~ 2 0
80 HH 309B HH ~ ~           ~ 2 0
81 HH 304C HH ~ ~           ~ 2 0
82 HH 304B HH ~ ~           ~ 2 0
83 HH 303K HH ~ ~           ~ 2 0
84 HH 303J HH ~ ~           ~ 2 0
85 HH 303H HH ~ ~           ~ 1 0
86 HH 303G HH ~ ~           ~ 1 0
87 HH 303F HH ~ ~           ~ 2 0
88 HH 303E HH ~ ~           ~ 1 0
89 HH 303D HH ~ ~           ~ 1 0
90 HH 303C HH ~ ~           ~ 1 0
91 HH 303A HH ~ ~           ~ 1 0
92 HH 305D HH ~ ~           ~ 3 0
93 HH 305C HH ~ ~           ~ 3 0
94 HH 301F HH ~ ~           ~ 1 0
95 HH 301E HH ~ ~           ~ 1 0
96 HH 301D HH ~ ~           ~ 1 0
97 HH 301B HH ~ ~           ~ 1 0
98 HH 404C HH ~ ~           ~ 1 0
99 HH 301A HH ~ ~           ~ 1 0
100 HH 404B HH ~ ~           ~ 1 0
101 HH 403G HH ~ ~           ~ 1 0
102 HH 403F HH ~ ~           ~ 1 0
103 HH 403E HH ~ ~           ~ 1 0
104 HH 403D HH ~ ~           ~ 1 0
105 HH 403C HH ~ ~           ~ 1 0
106 HH 403B HH ~ ~           ~ 1 0
107 HH 316G HH ~ ~           ~ 1 0

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