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Table 3
Representative environments of our pointed observations.
| Pos. | (RA, Dec) [h:m:s, °:′:″] | Environment |
|---|---|---|
| #1 | 5:41:44.4,–1:54:45.4 | Protostellar core NGC 2024(FIR-4) |
| #2 | 5:41:24.1,–1:50:49.5 | Irradiated prestellar core (NGC 2024 bubble) |
| #3 | 5:42:25.3,–1:59:33.2 | Starless core |
| #4 | 5:43:55.9,–1:34:21.4 | Orion B9 (south) |
| HHPDR | 5:40:53.9,–2:28:00.0 | Warm PDR |
| #6 | 5:41:36.5,–1:57:38.5 | NGC 2024 south: dust ridge |
| #7 | 5:42:03.2,–2:02:35.8 | Prestellar core in the Flame Filament |
| #8 | 5:42:02.9,–2:07:45.2 | Protostellar core (YSO) |
| HH Core | 5:40:55.6,–2:27:38.0 | DCO+ emission peak |
| #10 | 5:42:06.8,–2:03:33.5 | #7 surroundings |
| #11 | 5:41:20.2,–2:13:03.6 | NGC 2023 north surroundings |
| #12 | 5:40:58.1,–2:08:41.9 | Prestellar core |
| #13 | 5:41:40.0,–1:36:13.6 | Filament surroundings |
| #14 | 5:46:43.7,–0:54:22.6 | Cloak |
Notes. We sort these positions in decreasing order of Trot(HCN) (see also Table 7).
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