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Table 4
Observed near-IR lines toward the M 17 UC1 – IRS5 region.
| λ (μm) | IDs | Transition | Eupper (K)a | F ± δF (10-15 erg cm-2 s-1 arcsec-2) | ||
|
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| Obs. | region I | region II | region III | |||
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| 1.5349 | H I | 18−4 | 4.3 ± 2.0 | 4.9 ± 2.1 | 1.1 ± 0.4 | |
| 1.5447 | H I | 17−4 | 4.2 ± 1.5 | 4.8 ± 1.6 | 1.7 ± 0.3 | |
| 1.5566 | H I | 16−4 | 3.7 ± 1.2 | 2.6 ± 1.0 | 1.8 ± 0.6 | |
| 1.5710 | H I | 15−4 | 3.3 ± 1.1 | 4.9 ± 2.2 | 2.1 ± 0.2 | |
| 1.5891 | H I | 14−4 | 5.4 ± 0.6 | 5.7 ± 0.7 | 2.1 ± 0.6 | |
| 1.6120 | H I | 13−4 | 8.4 ± 1.9 | 7.6 ± 2.6 | 3.9 ± 1.2 | |
| 1.6417 | H I | 12−4 | 6.8 ± 2.1 | 5.6 ± 2.6 | 4.5 ± 0.4 | |
| 1.6817 | H I | 11−4 | 11.6 ± 0.8 | 11.4 ± 0.5 | 7.0 ± 0.5 | |
| 1.7013 | He I | 43D−33P | 7.3 ± 1.6 | 7.4 ± 1.6 | 3.3 ± 0.3 | |
| 1.7372 | H I | 10−4 | 17.6 ± 1.1 | 16.8 ± 1.0 | 9.9 ± 0.6 | |
| 1.8185 | H I | 9−4 | 23.3 ± 1.3 | 21.8 ± 1.8 | 13.0 ± 1.3 | |
| 1.8696 | He I | 43F−33D | 7.9 ± 0.9 | 7.8 ± 0.8 | 5.7 ± 0.7 | |
| 1.8762 | H I | 4−3 | 183.9 ± 1.0 | 147.8 ± 1.1 | 74.8 ± 0.7 | |
| 1.9457 | H I | 8−4 | 31.7 ± 1.0 | 32.1 ± 1.5 | 19.5 ± 0.8 | |
| 2.0344 | H2 | v = 1−0 S(2) | 7584 | – | 0.6 ± 0.4 | 1.8 ± 0.4 |
| 2.0592 | He I | 21P−21S | 61.2 ± 0.6 | 60.8 ± 0.6 | 28.4 ± 0.3 | |
| 2.1132 | He I | 41,3−31,3P | 4.2 ± 0.8 | 4.0 ± 0.3 | 2.4 ± 0.4 | |
| 2.1224 | H2 | v = 1−0 S(1) | 6956 | – | 3.3 ± 0.4 | 8.5 ± 0.2 |
| 2.1620 | He I | 73F−43D | 3.1 ± 0.4 | 3.0 ± 0.5 | 1.5 ± 0.4 | |
| 2.1667 | H I | 7−4 | 99.4 ± 0.7 | 92.8 ± 0.4 | 57.3 ± 0.3 | |
| 2.2239 | H2 | v = 1−0 S(0) | 6471 | 0.0 ± 0.7 | 1.5 ± 0.5 | 3.2 ± 0.6 |
| 2.2873 | [Se iv] | 2P P1/2 |
1.2 ± 0.4 | 1.4 ± 0.4 | 1.5 ± 0.5 | |
| 2.4073 | H2 | v =1−0 Q(1) | 6149 | – | 7.2 ± 1.0 | 15.7 ± 0.5 |
| 2.4141 | H2 | v = 1−0 Q(2) | 6471 | – | – | 4.8 ± 0.4 |
| 2.4244 | H2 | v = 1−0 Q(3) | 6956 | – | 4.1 ± 1.2 | 6.8 ± 0.7 |
Notes.Lines detected in the averaged spectra of three selected regions. The flux of each line is averaged over each region.
(a)
Excitation energy adopted from Dabrowski (1984).
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