Table 2.
Distribution of area, molecular gas mass and SFRs across environments.
| Centre | Bar | Spiral | Interarm | Disc | All | |
|---|---|---|---|---|---|---|
| Area [kpc2] | 92 (0.66%) | 1467 (10.5%) | 1495 (10.7%) | 4620 (33.0%) | 6296 (45.0%) | 13972 (100%) |
| H2 mass [1010 M⊙] | 2.32 (17.4%) | 2.64 (19.8%) | 2.45 (18.4%) | 2.25 (16.8%) | 3.66 (27.4%) | 13.3 (100%) |
| SFR [M⊙ yr−1] | 23.9 (25.2%) | 15.6 (16.4%) | 15.6 (16.5%) | 13.1 (13.9%) | 26.2 (27.7%) | 94.6 (100%) |
Notes. These measurements integrate the area or flux across each environment for all PHANGS galaxies at the highest resolution available to us (∼1″) within the ALMA field of view. As explained in the text, the SFR budget is dominated by a few outliers, where AGN contamination might also be an issue; excluding the four most star-forming galaxies, centres would contribute 11% of the total SFR instead of 25.2%.
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