Open Access
Table 7.
Density thresholds where 50% of the total flux is emitted, in cm−3.
| Galaxy | Rd |
2 Rd |
3 Rd |
||||||
|---|---|---|---|---|---|---|---|---|---|
| CO(2−1) | HCN(1−0) | HCO+(1−0) | CO(2−1) | HCN(1−0) | HCO+(1−0) | CO(2−1) | HCN(1−0) | HCO+(1−0) | |
| NGC 628 | 377 | 1241 | 4961 | 275 | 2200 | 2200 | 461 | 1843 | 1843 |
| NGC 3184 | 153 | 688 | 2751 | 247 | 1263 | 1263 | 180 | 359 | 1435 |
| NGC 3627 | 193 | 1310 | 2620 | 243 | 1197 | 1197 | 1367 | 1367 | 2734 |
| NGC 5055 | 315 | 1557 | 6227 | 426 | 3402 | 1701 | 704 | 5630 | 2815 |
| NGC 5194 | 309 | 1630 | 2717 | 251 | 1378 | 689 | 267 | 1065 | 1065 |
| NGC 6946 | 247 | 1839 | 2202 | 238 | 1633 | 817 | 537 | 1074 | 1074 |
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