2007A&A...466..949N


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.05CEST07:17:15

2007A&A...466..949N - Astronomy and Astrophysics, volume 466, 949-968 (2007/5-2)

Observations of spatial and velocity structure in the Orion molecular cloud.

NISSEN H.D., GUSTAFSSON M., LEMAIRE J.L., CLENET Y., ROUAN D. and FIELD D.

Abstract (from CDS):

Observations are reported of H2 IR emission in the S(1) v=1-0 line at 2.121 µm in the Orion Molecular Cloud, OMC1, using the GriF instrument on the Canada-France-Hawaii Telescope. GriF uses a combination of adaptive optics and Fabry-Perot interferometry, yielding a spatial resolution of 0.15" to 0.18" and velocity discrimination as high as 1km/s. 193 bright H2 emission regions can be identified in OMC1. The general characteristics of these features are described in terms of radial velocities, brightness and spatial displacement of maxima of velocity and brightness, the latter to yield the orientation of flows in the plane of the sky. Strong spatial correlation between velocity and bright H2 emission is found and serves to identify many features as shocks. Important results are: (i) velocities of the excited gas illustrate the presence of a zone to the south of BN-IRc2 and Peak 1, and the west of Peak 2, where there is a powerful blue-shifted outflow with an average velocity of -18km/s. This is shown to be the NIR counterpart of an outflow previously identified in the radio, originating from either source I or source n. (ii) There is a band of weak radial velocity features (<5km/s) in Peak 1. (iii) A small proportion of the flows may represent sites of low mass star formation and one region shows evidence of multiple flows which may indicate multiple low mass star formation within OMC1.

Abstract Copyright:

Journal keyword(s): ISM: jets and outflows - ISM: structure - stars: formation - stars: circumstellar matter - ISM: kinematics and dynamics ISM: molecules -

VizieR on-line data: <Available at CDS (J/A+A/466/949): tablea1.dat tablea2.dat tablea3.dat>

Simbad objects: 59

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Number of rows : 59

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 NAME Orion Nebula Cluster OpC 05 35.0 -05 29           ~ 1977 1
2 MLLA 713 * 05 35 11.7200 -05 22 03.100           ~ 4 0
3 MLLA 698 * 05 35 11.9800 -05 22 08.000           ~ 4 0
4 MLLA 609 * 05 35 12.2000 -05 22 30.800           ~ 4 1
5 COUP 477 * 05 35 12.3500 -05 22 41.350           ~ 7 0
6 MLLA 695 * 05 35 12.4300 -05 22 08.700           ~ 4 1
7 COUP 529 * 05 35 13.2500 -05 22 09.900           ~ 11 0
8 COUP 539 X 05 35 13.3000 -05 22 39.320           ~ 9 0
9 MLLA 552 IR 05 35 13.52 -05 22 45.2           ~ 2 0
10 NAME Orion Peak 1 PoC 05 35 13.57 -05 22 03.8           ~ 31 0
11 CXOONC J053513.6-052255 X 05 35 13.695 -05 22 56.22           ~ 7 0
12 Parenago 1821 Y*O 05 35 13.7427694483 -05 22 21.970532072 17.886 17.435 16.559   13.422 M2e 38 0
13 COUP 572 * 05 35 13.77462 -05 22 17.3912           ~ 14 0
14 HH 208A HH 05 35 13.8 -05 22 22           ~ 22 0
15 V* V1496 Ori Or* 05 35 13.8001039312 -05 22 07.024932180   16.184 14.987   12.289 K2e 48 0
16 V* V2248 Ori Or* 05 35 13.80072 -05 21 59.6628           ~ 28 1
17 COUP J053513.9-052237 X 05 35 13.939 -05 22 37.49           ~ 5 0
18 NAME OMC-1 MoC 05 35 14 -05 22.4           ~ 1015 2
19 COUP J053514.0-052222 HH 05 35 14.10856 -05 22 22.6807           ~ 28 0
20 V* V2254 Ori Or* 05 35 14.11296 -05 22 22.7316           B 286 2
21 [GD77] A IR 05 35 14.19 -05 22 34.0           ~ 58 0
22 MLLA 591 * 05 35 14.218 -05 22 33.79           ~ 3 0
23 MLLA 709A * 05 35 14.23 -05 22 04.0           ~ 12 0
24 MLLA 585 * 05 35 14.250 -05 22 35.21           ~ 3 0
25 [FW2011] J053514.278-052230.647 IR 05 35 14.278 -05 22 30.65           ~ 68 0
26 COUP 620 * 05 35 14.30842 -05 22 04.3874   14.0 21.31   16.227 ~ 21 1
27 [CBA97] 8 * 05 35 14.33 -05 22 25.2           ~ 13 0
28 NAME Ori N Y*O 05 35 14.35371 -05 22 32.8820           ~ 103 0
29 COUP 622 * 05 35 14.3700 -05 22 36.100     23.30     ~ 22 0
30 [RLK73] IRc 2c X 05 35 14.39867 -05 22 30.3648           ~ 22 0
31 [RLK73] IRc 2d IR 05 35 14.45 -05 22 29.9           ~ 19 0
32 [RLK73] IRc 2b IR 05 35 14.473 -05 22 29.61           ~ 20 0
33 [FRM2016] 184 X 05 35 14.5013870 -05 22 38.696699           ~ 22 0
34 [RLK73] IRc 2a Y*O 05 35 14.511 -05 22 30.40           ~ 112 0
35 [FW2011] J053514.519-052244.609 IR 05 35 14.519 -05 22 44.61           ~ 3 0
36 MLLA 572A * 05 35 14.656 -05 22 38.36           ~ 9 0
37 COUP 656 * 05 35 14.6900 -05 22 38.200           ~ 13 1
38 [RLK73] IRc 11 IR 05 35 14.71 -05 22 30.8           ~ 8 0
39 ** SMN 2B * 05 35 14.7300 -05 22 29.800           ~ 7 1
40 ** SMN 2A * 05 35 14.73076 -05 22 29.8298           ~ 16 0
41 [RLK73] IRc 12 IR 05 35 14.81 -05 22 31.3           ~ 10 0
42 MLLA 603 Ir* 05 35 14.82 -05 22 31.9   12.8 17.57   14.452 K-M: 30 1
43 MLLA 557 * 05 35 14.8600 -05 22 44.100           ~ 8 0
44 V* V1330 Ori BY* 05 35 14.9157450029 -05 22 39.209342428   15.040 13.940   11.632 K4 65 0
45 MLLA 594 Y*O 05 35 15.01 -05 22 33.9           ~ 3 1
46 2MASS J05351519-0522367 Y*O 05 35 15.193 -05 22 36.79           ~ 18 0
47 V* V1331 Ori Ro* 05 35 15.3444129558 -05 22 15.587976220   15.777 14.474   11.707 K3e 49 0
48 COUP 716 * 05 35 15.5500 -05 22 46.400           ~ 12 0
49 NAME Orion Peak 2 PoC 05 35 15.74 -05 22 39.9           ~ 20 0
50 * tet01 Ori A Ae* 05 35 15.8252169327 -05 23 14.332546552 5.87 6.75 6.73 6.42 6.21 B0V 457 1
51 2MASS J05351587-0522328 Y*O 05 35 15.874 -05 22 32.83     20.60   15.697 M2.5:e 25 0
52 MLLA 561 * 05 35 15.9600 -05 22 41.100           ~ 5 0
53 * tet01 Ori B Al* 05 35 16.112 -05 23 06.89 7.71 8.20 7.96     B1V 340 2
54 COUP 776 * 05 35 16.1916520768 -05 22 37.464854747     18.99   14.822 M3.5 25 0
55 * tet01 Ori C ** 05 35 16.46375 -05 23 22.8486 4.20 5.15 5.13 4.91 4.73 O7Vp 1271 1
56 NAME Trapezium Cluster As* 05 35 16.5 -05 23 14           ~ 1466 1
57 * tet01 Ori D Y*O 05 35 17.2574309230 -05 23 16.567215876 6.08 6.79 6.70 6.40 6.20 B1.5Vp 304 0
58 NGC 2023 RNe 05 41 37.9 -02 15 52           ~ 570 1
59 NAME ORI MOL CLOUD MoC 05 56 -01.8           ~ 848 1

    Equat.    Gal    SGal    Ecl

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2020.07.05-07:17:15

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