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Table 2

Selected OMC1 bullets and bow shocks.

Feature α(J2000) δ(J2000) ΔX V PA D τ dyn Comments
(05h 35m+) (−5° +) (′′) (km s-1) (°) (′′) (yr)
H2 1 12.625 20:55.22 0.88 297 346 97 643 HVCC H2 knot
2 12.058 20:37.68 0.43 145 324 116 1577 Ahead of H2a
3 12.270 20:37.82 0.84 283 344 114 794 ′′
4 12.351 20:38.84 0.54 182 350 112 1213 ′′
5 12.965 21:16.37 0.33 111 338 74 1314 Cluster NE of H2a
6 12.989 21:17.73 0.53 179 347 73 801 ′′
S1 11.532 21:02.24 0.30 101 233 – – Background flow
S2 11.616 20:53.94 0.29 98 227 – – ′′
S3 11.614 20:54.45 0.54 182 218 – – ′′
W1 12.543 20:52.03 0.240 80 – – 29 Spreading H2 wake
W3 12.642 20:56.45 0.138 46 – – 100 ′′
[Fe ii] 1 12.521 20:50.12 0.68 229 345 102 863 HH 207; Fe ii] bow
2 12.165 20:39.09 0.81 273 345 116 835
3 12.274 20:37.96 0.79 267 354 114 839
4 12.353 20:38.94 0.55 186 349 112 1184
5 12.898 20:34.12 0.59 199 1 116 1146
6 12.932 20:34.87 0.61 206 3 115 1097
7 13.066 20:35.39 0.61 206 355 114 1088
8 13.052 20:39.01 0.61 206 354 112 1069
9 13.010 20:40.81 0.56 189 350 97 1009
10 13.308 20:54.78 0.41 138 354 96 1367
11 13.386 20:56.16 0.53 179 353 95 1043
12 13.354 20:53.14 0.33 111 357 98 1736
13 12.592 20:56.23 0.27 91 354 97 2096
14 12.795 21:05.50 0.49 165 354 87 1036
15 11.502 21:07.20 0.92 310 338 94 596
16 11.680 21:10.86 0.71 240 326 89 729
17 11.792 21:12.81 0.41 138 329 86 1225

Notes.

(a)

The projected distance from the suspected point of ejection of the stars BN and source I about 500 yr ago, D, is measured from J2000 = 05:35:14.35, −5:22:28.5 (Gomez et al. 2008).

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