Table 1
Observed emission lines on IRAS 11101-5829.
| Species | Transition | λvac | Flux | ||
|---|---|---|---|---|---|
| (μm) | (10−14 erg cm−2 s−1) | ||||
| NE region | SW region | Central region | |||
| H2 | 1− 0 S(3) | 1.95755 | 5.10 ± 0.12 | 2.69 ± 0.05 | ⋯ |
| H2 | 1− 0 S(2) | 2.03375 | 1.78 ± 0.06 | 0.89 ± 0.02 | ⋯ |
| H2 | 2− 1 S(3) | 2.07351 | 0.47 ± 0.04 | 0.18 ± 0.02 | ⋯ |
| H2 | 1− 0 S(1) | 2.12182 | 5.19 ± 0.02 | 2.71 ± 0.01 | 3.87 ± 0.14 |
| H2 | 2− 1 S(2) | 2.15422 | 0.17 ± 0.02 | 0.15 ± 0.01 | ⋯ |
| H I | Brγ | 2.16612 | 2.94 ± 0.37 | 0.77 ± 0.13 | 17.2 ± 0.31 |
| H2 | 3− 2 S(3) | 2.20139 | 0.22 ± 0.05 | 0.14 ± 0.03 | ⋯ |
| Na I | 2 S3∕2 − 2Po1∕2 | 2.20624 | 0.37 ± 0.05 | ⋯ | 1.50 ± 0.02 |
| Na I | 2 S1∕2 − 2Po1∕2 | 2.20897 | 0.44 ± 0.07 | ⋯ | 1.42 ± 0.02 |
| H2 | 1− 0 S(0) | 2.22330 | 1.24 ± 0.02 | 0.84 ± 0.01 | 1.34 ± 0.17 |
| He I | 1 S1 − 1Po0 | 2.24373 | 0.14 ± 0.01 | 0.07 ± 0.01 | 1.03 ± 0.06 |
| H2 | 2− 1 S(1) | 2.24772 | 0.59 ± 0.01 | 0.32 ± 0.01 | 1.24 ± 0.04 |
| CO(a) | υ = 2− 0 | 2.29320 | 4.48 ± 0.45 | 2.47 ± 0.25 | 41.0 ± 4.10 |
| CO(a) | υ = 3− 1 | 2.32320 | 4.09 ± 0.41 | 3.21 ± 0.32 | 46.5 ± 0.47 |
| CO(a) | υ = 4− 2 | 2.35320 | 2.55 ± 0.26(b) | 3.60 ± 0.36(b) | 41.4 ± 4.14(b) |
| CO(c) | υ = 5− 3 | 2.38350 | ⋯ | ⋯ | ⋯ |
| H2 | 1− 0 Q(1) | 2.40659 | 4.30 ± 0.15 | 2.49 ± 0.09 | ⋯ |
| H2 | 1− 0 Q(2) | 2.41343 | 1.61 ± 0.16 | 1.01 ± 0.08 | ⋯ |
| H2 | 1− 0 Q(3) | 2.42372 | 3.67 ± 0.14 | 2.04 ± 0.09 | ⋯ |
| H2 | 1− 0 Q(4) | 2.43749 | 1.15 ± 0.16 | 0.64 ± 0.08 | ⋯ |
Notes. The fluxes were measured towards the three regions indicated in Fig. 1.(a) Since no Gaussian profile could be fitted, the flux was obtained integrating over the curve in the specific wavelength and the error considered to be 10%. (b) Affected by poor atmospheric transmission and telluric subtraction. (c)Emission too faint to measure the flux.
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