Table 8
Molecular hydrogen column densities as measured using K-band spectra (5 knots) and narrow-band H2 line imaging (29 knots).
| Knot | N H2 | M H2 | Ṁout(H2) | n H2 |
| MHO | (cm-2) | (M⊙) | (M⊙ yr-1) | (cm-3) |
|
|
||||
| 2234-A1+A2* | 1.5 ×1020 | 7.0 ×10-5 | 9.6 ×10-7 | 16900 |
| (2.8 ×1019) | (1.3 ×10-5) | (1.9 ×10-7) | (3200) | |
| 2234-B1 | 2.2 ×1019 | 7.0 ×10-6 | 4.7 ×10-8 | 2500 |
| 2234-C | 3.7 ×1018 | 1.1 ×10-6 | 1.6 ×10-9 | 4300 |
| 2234-D1+D2* | 1.4 ×1018 | 6.4 ×10-7 | 1.5 ×10-9 | 200 |
| (1.2 ×1018) | (5.6 ×10-7) | (1.4 ×10-9) | (100) | |
| 2234-E | 5.2 ×1017 | 2.1 ×10-7 | 3.9 ×10-10 | 60 |
| 2234-G1 | 7.7 ×1017 | 6.6 ×10-8 | 2.8 ×10-11 | 90 |
| 2234-H1* | 1.1 ×1019 | 5.0 ×10-6 | 3.0 ×10-9 | 1300 |
| (8.4 ×1018) | (3.9 ×10-6) | (2.4 ×10-9) | (1000) | |
| 2234-H2 | 3.6 ×1018 | 1.0 ×10-6 | 3.0 ×10-10 | 400 |
| 2234-H3 | 2.4 ×1018 | 6.0 ×10-7 | 2.6 ×10-10 | 300 |
| 2234-H4 | 1.4 ×1018 | 2.6 ×10-7 | 9.7 ×10-11 | 200 |
| 2234-H5 | 2.3 ×1018 | 3.5 ×10-7 | 3.4 ×10-11 | 300 |
| 2234-H8 | 2.1 ×1018 | 4.3 ×10-7 | 1.1 ×10-10 | 300 |
|
|
||||
| 2233-N* | 4.4 ×1017 | 2.3 ×10-7 | 5.7 ×10-11 | 50 |
| (1.6 ×1017) | (8.5 ×10-8) | (2.1 ×10-11) | (20) | |
| 2233-P | 9.2 ×1016 | 2.0 ×10-8 | 4.0 ×10-12 | 10 |
| 2235-A2 | 9.9 ×1017 | 1.4 ×10-7 | 8.1 ×10-11 | 100 |
| 2235-C1 | 1.1 ×1018 | 1.7 ×10-7 | 3.0 ×10-10 | 100 |
| 2235-D | 6.1 ×1017 | 7.4 ×10-8 | 6.5 ×10-11 | 70 |
| 2235-E | 1.4 ×1018 | 3.5 ×10-7 | 1.0 ×10-9 | 200 |
| 2235-F1 | 9.0 ×1017 | 1.2 ×10-7 | 1.8 ×10-10 | 100 |
| 2235-I1 | 5.2 ×1017 | 5.7 ×10-8 | 7.4 ×10-12 | 60 |
| 2235-I2 | 5.6 ×1017 | 5.9 ×10-8 | 2.2 ×10-11 | 60 |
| 2235-I3 | 3.0 ×1017 | 2.9 ×10-8 | 6.7 ×10-12 | 30 |
| 2235-K | 8.1 ×1017 | 1.3 ×10-7 | 2.7 ×10-11 | 90 |
| 2235-M1 | 8.5 ×1017 | 2.2 ×10-7 | 5.1 ×10-12 | 100 |
| 2235-M2 | 7.3 ×1017 | 1.7 ×10-7 | 1.1 ×10-11 | 80 |
| 2235-M4 | 7.4 ×1017 | 2.1 ×10-7 | 3.6 ×10-11 | 90 |
| 2235-M5 | 4.9×1017 | 5.0 ×10-8 | 2.8 ×10-11 | 60 |
|
|
||||
| 2235-A1 | 1.3 ×1018 | 6.5 ×10-7 | 1.2 ×10-9 | 200 |
| 2235-B* | 1.1 ×1019 | 8.0 ×10-6 | 4.8 ×10-9 | 1300 |
| (4.8 ×1018) | (3.4 ×10-6) | (2.1 ×10-9) | (600) | |
Notes.The masses are obtained from the column densities NH2 and the surface areas of the knots. The mass-loss rates are estimated using the velocity information of the knots and their location relative to the driving source.
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