Table 4
Masses within the several regions defined in Sect. 3.2 calculated from the dust optical depth τ160 and from the CO (1 − 0) intensity ICO (1 − 0).
| Region | Mdust [M⊙] | MCO [M⊙] |
|
|
||
| Entire map | 294 | 200 |
| L1630 | 283 | 197 |
| Horsehead PDR | 3 | 1 |
| PDR1 | 5 | 3 |
| PDR2 | 6 | 4 |
| PDR3 | 17 | 13 |
| CO-dark cloud | 5 | 2 |
| CO clumps | 12 | 14 |
| H ii region | 11 | 3 |
| CO-emitting gas | 251 | 175 |
Notes. For the latter we use an XCO of 2 × 1020 cm-2 (K km s-1)-1 (Bolatto et al. 2013 and references therein). “CO-emitting gas” refers to the part of the map with extended CO emission, that is, the deeper layers of L1630.
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