Table 4
Comparison of physical parameters in W49A to Galactic center clouds and starburst galaxies.
| Source | n | T | P/k |
| (cm-3) | (K) | (K cm-3) | |
|
|
|||
| W49A center | 1.8 × 106 | 300 | 5.4 × 108 |
| W49A N clump | 5.6 × 105 | 98 | 5.5 × 107 |
| W49A E tail | 1.2 × 106 | 68 | 8.2 × 107 |
| W49A SW clump | 1.3 × 105 | 85 | 1.1 × 107 |
|
|
|||
| Sgr B2a | 2 × 105 | 100−120 | 2 × 107 − 2.4 × 107 |
| Henize 2-10b | ≳ 1 × 104 | 50 − 100 | 5 × 105 − 106 |
| M82c | 104.2 − 104.4 | 130−160 | 106.4 − 106.6 |
| Arp 220b | (0.3−1) × 106 | 45−120 | 1.4 × 107 − 1.2 × 108 |
| Antennaee | 105 | 90 | 9 × 106 |
Notes.
De Vicente et al. (1997) based on CH3CN J = 5–4, 8 − 7, 12 − 11 lines.
Bayet et al. (2004), based on 12CO(J = 3–2, 4 − 3, 6 − 5, 7 − 6) and 13CO(J = 3–2).
Median values based on three different positions (Naylor et al. 2010). Obtained from multiple species radiative transfer modeling of the lines of CS, HCO+, HCN, HNC, and C34S.
Greve et al. (2009), based on HCN and CS lines.
Zhu et al. (2003), based on CO and 13CO 2 − 1 and 3 − 2 lines.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.