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Table 4.
Mean values of the gas fraction, fgas = Mtot gas/(Mstar + Mtot gas), and the molecular-to-atomic gas mass ratio, within r25, expressed in logarithm as a function of the morphological stage from T = 1 to T = 10, and assuming a constant XCO (Bolatto et al. 2013) and a metallicity-dependent XCO (Amorín et al. 2016).
| T | log(fgas)r25(1) | log(fgas)r25(1) | log(MH2/MHI)r25(2) | log(MH2/MHI)r25(2) |
|---|---|---|---|---|
| Const. XCO | XCO–Z | Const. XCO | XCO–Z | |
| 1 | −0.87 ± 0.09 (26) | −0.87 ± 0.08 (16) | 0.58 ± 0.16 (26) | 0.50 ± 0.24 (16) |
| 2 | −0.86 ± 0.08 (30) | −0.72 ± 0.10 (16) | 0.55 ± 0.10 (30) | 0.46 ± 0.13 (16) |
| 3 | −0.79 ± 0.04 (36) | −0.72 ± 0.04 (31) | 0.33 ± 0.14 (36) | 0.42 ± 0.16 (31) |
| 4 | −0.72 ± 0.04 (33) | −0.69 ± 0.03 (27) | −0.04 ± 0.08 (33) | 0.01 ± 0.06 (27) |
| 5 | −0.60 ± 0.03 (41) | −0.58 ± 0.03 (40) | 0.00 ± 0.14 (41) | −0.02 ± 0.07 (40) |
| 6 | −0.43 ± 0.04 (33) | −0.37 ± 0.04 (31) | 0.02 ± 0.14 (33) | 0.24 ± 0.16 (31) |
| 7 | −0.45 ± 0.04 (19) | −0.40 ± 0.04 (18) | −0.26 ± 0.26 (19) | −0.22 ± 0.11 (18) |
| 9 | −0.44 ± 0.04 (27) | −0.39 ± 0.04 (27) | −0.03 ± 0.14 (27) | 0.19 ± 0.14 (27) |
| 1–10 | −0.62 ± 0.02 (245) | −0.55 ± 0.02 (206) | 0.24 ± 0.06 (245) | 0.23 ± 0.06 (206) |
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