1998A&A...332..307S

Query : 1998A&A...332..307S

1998A&A...332..307S - Astronomy and Astrophysics, volume 332, 307-313 (1998/4-1)

First results of an unbiased H2 survey for protostellar jets in Orion A.

STANKE T., McCAUGHREAN M.J. and ZINNECKER H.

Abstract (from CDS):

We are conducting an unbiased search at λ2.12µm for embedded molecular hydrogen jets thought to be associated with very young stellar objects, deeply embedded in dense cores in the Orion A molecular cloud. As a first result, we show a 0.4x0.5 degree mosaic centred on the L1641-N complex, revealing a number of previously unknown knots and chains of H2 emission. A 5x5 arcmin close-up of L1641-N shows it to be a very active region, with at least one parsec-scale jet originating in the small embedded cluster: we also show 10µm imaging to help identify the outflow source. Elsewhere in the mosaic, several knots in the HH34 jet are detected for the first time in H2, and a new, deeply embedded jet is discovered next to it. These preliminary results demonstrate the power of H2 imaging surveys in studying the large-scale role of jets and outflows in star formation.

Abstract Copyright: ∼

Journal keyword(s): ISM: jets and outflows - infrared: ISM: lines and bands - stars: formation - ISM: individual objects: L1641-North (LDN 1641N) - ISM: individual objects: HH 34

Nomenclature: Table 1: HH NNN (Nos 299, 301-304). Table 1, Figs 1 and 3: SMZ NNA N=62 (Nos 1-28) = SMZ 5-NNA N=62, SMZ NNAN = SMZ 5-NNAN N=9.

Simbad objects: 81

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Number of rows : 81
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 HH 211 Y*O 03 43 56.52 +32 00 52.8           ~ 369 0
2 HH 85E HH 05 35 25.9 -06 21 50           ~ 4 0
3 SMZ 21 PoC 05 35 28.8 -06 25 47           ~ 1 0
4 SMZ 24 PoC 05 35 30.1 -06 28 04           ~ 1 0
5 HH 34 HH 05 35 31.30 -06 28 43.0     16     ~ 488 2
6 SMZ 6 PoC 05 35 39.1 -06 15 43           ~ 1 0
7 HH 86 HH 05 35 40.3 -06 36 13           ~ 19 0
8 SMZ 3A PoC 05 35 41.6 -06 11 57           ~ 1 0
9 SMZ 7 PoC 05 35 41.8 -06 18 33           ~ 1 0
10 HH 87 HH 05 35 43.2 -06 37 30           ~ 17 0
11 SMZ 26B PoC 05 35 43.7 -06 37 41           ~ 1 0
12 HH 88 HH 05 35 44.0 -06 37 55           ~ 14 0
13 SMZ 3B PoC 05 35 45.3 -06 12 44           ~ 1 0
14 SMZ 2 PoC 05 35 49.0 -06 10 13           ~ 3 0
15 SMZ 19 Y*? 05 35 53.4 -06 24 33           ~ 5 0
16 SMZ 10 PoC 05 36 02.1 -06 20 00           ~ 1 0
17 SMZ 1B PoC 05 36 08.7 -06 10 54           ~ 1 0
18 SMZ 1A PoC 05 36 09.3 -06 09 27           ~ 1 0
19 HH 299 HH 05 36 10.0 -06 19 58           ~ 7 0
20 SMZ 15 PoC 05 36 12.1 -06 21 56           ~ 1 0
21 SMZ 4A PoC 05 36 16.9 -06 11 56           ~ 1 0
22 SMZ 4B PoC 05 36 17.4 -06 13 04           ~ 1 0
23 NAME LDN 1641 North HII 05 36 17.6 -06 22 10           ~ 239 0
24 HH 303 HH 05 36 18.2 -06 19 47           ~ 7 0
25 SMZ 23B PoC 05 36 19.4 -06 26 52           ~ 2 0
26 SMZ 23A PoC 05 36 20.4 -06 25 47           ~ 1 0
27 SMZ 23D PoC 05 36 20.5 -06 28 40           ~ 2 0
28 JCMTSF J053621.0-063032 PoC 05 36 21.3 -06 30 27           ~ 3 0
29 SMZ 14A1 PoC 05 36 21.3 -06 21 39           ~ 3 0
30 SMZ 23F PoC 05 36 22.2 -06 32 38           ~ 1 0
31 SMZ 16B PoC 05 36 23.2 -06 22 48           ~ 2 0
32 SMZ 23C PoC 05 36 23.8 -06 28 12           ~ 1 0
33 BD-06 1253 Ae* 05 36 25.4320468080 -06 42 57.684730284   11.65 10.9 10.29   A1e 435 1
34 SMZ 23G PoC 05 36 25.5 -06 35 35           ~ 1 0
35 SMZ 16A PoC 05 36 26.6 -06 22 41           ~ 2 0
36 SMZ 20 PoC 05 36 29.7 -06 24 29           ~ 3 0
37 SMZ 22 PoC 05 36 35.5 -06 25 48           ~ 2 0
38 SMZ 28 PoC 05 36 36.4 -06 38 50           ~ 2 0
39 HH 304 HH 05 36 37.0 -06 14 57           ~ 5 0
40 HH 301 HH 05 36 37.8 -06 21 26           ~ 10 0
41 SMZ 17 PoC 05 36 39.3 -06 22 42           ~ 1 0
42 SMZ 18B PoC 05 36 46.7 -06 23 11           ~ 1 0
43 HH 302 HH 05 36 48.6 -06 20 40           ~ 9 0
44 SMZ 18A PoC 05 36 49.9 -06 22 46           ~ 1 0
45 SMZ 27B PoC 05 36 54.4 -06 37 57           ~ 1 0
46 SMZ 25B PoC 05 36 56.8 -06 34 18           ~ 2 0
47 2MASS J05370047-0637103 Y*O 05 37 00.479 -06 37 10.31           ~ 22 0
48 SMZ 25A PoC 05 37 01.9 -06 32 59           ~ 2 0
49 NAME Ori A MoC 05 38 -07.1           ~ 3012 0
50 LDN 1641 MoC 05 39.0 -07 00           ~ 479 0
51 HH 212 HH 05 43 51.41 -01 02 53.1           ~ 392 1
52 HH 23G HH 07 25.2 -24 28           ~ 9 0
53 SMZ 14P PoC ~ ~           ~ 1 0
54 SMZ 14H PoC ~ ~           ~ 1 0
55 SMZ 14G PoC ~ ~           ~ 2 0
56 SMZ 14F PoC ~ ~           ~ 2 0
57 SMZ 14C PoC ~ ~           ~ 1 0
58 SMZ 14B PoC ~ ~           ~ 1 0
59 SMZ 14K2 PoC ~ ~           ~ 1 0
60 SMZ 14L PoC ~ ~           ~ 2 0
61 HH 292D HH ~ ~           ~ 2 0
62 SMZ 14K1 PoC ~ ~           ~ 1 0
63 SMZ 14D3 PoC ~ ~           ~ 2 0
64 SMZ 14D2 PoC ~ ~           ~ 2 0
65 SMZ 14D1 PoC ~ ~           ~ 2 0
66 SMZ 14E2 PoC ~ ~           ~ 2 0
67 SMZ 14E1 PoC ~ ~           ~ 2 0
68 SMZ 14A2 PoC ~ ~           ~ 2 0
69 SMZ 15C PoC ~ ~           ~ 2 0
70 SMZ 15B PoC ~ ~           ~ 1 0
71 SMZ 15A PoC ~ ~           ~ 2 0
72 SMZ 9B PoC ~ ~           ~ 2 0
73 SMZ 9A PoC ~ ~           ~ 2 0
74 HH 23F HH ~ ~           ~ 2 0
75 HH 23B HH ~ ~           ~ 3 0
76 SMZ 8B PoC ~ ~           ~ 2 0
77 SMZ 8A PoC ~ ~           ~ 2 0
78 HH 23D HH ~ ~           ~ 2 0
79 SMZ 14M PoC ~ ~           ~ 1 0
80 HH 23E HH ~ ~           ~ 2 0
81 SMZ 14N PoC ~ ~           ~ 1 0

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