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Table 2
Molecular components of the model for CRL 618.
| Nebula | Size | Radial velocity | Temperature | Density | Mass | ||
| component | (cm) | Vexp (km s-1) | T (K) | ρ (cm-3) | M (M⊙) | ||
|
|
|||||||
| Halo | R in = 1.6 × 1016 | 7 + 10 [1 –(Rin/r)]1/2 | 115 (1016/r) + 5 | 1.2 × 106 (1016/r)2 | 0.24 | ||
| R out = 1017 | |||||||
| Ellipses | M = major axis = 8.4 × 1016 | 10 [1 + (h / M)] | 80 | [1.1–1.05 (h/M)]106 | 0.04 | ||
| minor axis = 4 × 1016 | |||||||
| thickness = 2.6 × 1015 | |||||||
| center = ±4.2 × 1016 | |||||||
| Fast outflow | R out = 0.9 × 1016 | (a) | 45 + 255 (h − 1016)/(hmax – 1016) | 300 (1016/h) + 5 | 5.5 × 106 (1016/r)2 | 0.07 | |
| h max = 2.8 × 1016 | (b) | 45 [1 + (h − 1016)/(1016)] | 300 (1016/h) + 5 | 5.5 × 106 (1016/r) | |||
| Dense core | R out = 1.6 × 1016 | 7 (r/Rout) | 120 | 2.7 × 106 (1016/r)3 | 0.05 | ||
Notes. r is the radial distance to the central star. h is the distance to the equator. (a) and (b) are the values for the cylindrical and conical regions of the high-velocity outflow.
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