Table 10.
CO(2–1)-to-CO(1–0) line ratio, R21, for CO-VG and CO-CS galaxies: Mean values.
| R21 = ICO(2 − 1)/ICO(1 − 0), including detections and upper limits (i.e. only galaxies with ICO(1 − 0) > 3σ) |
|||||||||
|---|---|---|---|---|---|---|---|---|---|
| R90, r | CO-VG |
CO-CS |
Δmean | σ | KS | ||||
| range | n/nup | mean | n/nup | mean | |||||
| (1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | ||
| 0.0–5.0 | 2/0 | 2.40 ± 0.14 | 10/1 | 2.07 ± 0.20 | 0.33 ± 0.24 | 1.34 | 0.455 | ||
| 5.0–10.0 | 39/9 | 1.66 ± 0.15 | 28/3 | 1.83 ± 0.12 | −0.17 ± 0.19 | −0.88 | 0.143 | ||
| 10.0–15.0 | 51/2 | 1.66 ± 0.08 | 32/5 | 1.65 ± 0.08 | 0.02 ± 0.11 | 0.16 | 0.476 | ||
| 15.0–20.0 | 31/2 | 1.29 ± 0.08 | 29/3 | 1.60 ± 0.09 | −0.30 ± 0.12 | −2.55 | 0.015 | ||
| 20.0–25.0 | 3/2 | 0.89 ± 0.00 | 8/1 | 1.31 ± 0.16 | −0.42 ± 0.16 | −2.61 | 0.836 | ||
| 25.0–30.0 | 1/1 | 2.57 | 1/0 | 1.41 | 1.17 | – | – | ||
| R21 = ICO(2 − 1)/ICO(1 − 0), including detections and lower limits (i.e. only galaxies with ICO(2 − 1) > 3σ) | |||||||||
| R90, r | CO-VG |
CO-CS |
Δmean | σ | KS | ||||
| range | n/nlow | mean | n/nlow | mean | |||||
| (1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | ||
| 0.0–5.0 | 2/0 | 2.40 ± 0.14 | 9/0 | 2.22 ± 0.16 | 0.18 ± 0.22 | 0.86 | 0.545 | ||
| 5.0–10.0 | 34/5 | 2.22 ± 0.18 | 26/1 | 1.92 ± 0.13 | 0.31 ± 0.22 | 1.37 | 0.472 | ||
| 10.0–15.0 | 54/5 | 1.79 ± 0.10 | 29/2 | 1.73 ± 0.07 | 0.06 ± 0.12 | 0.49 | 0.433 | ||
| 15.0–20.0 | 30/1 | 1.33 ± 0.08 | 28/2 | 1.70 ± 0.09 | −0.38 ± 0.12 | −3.11 | 0.004 | ||
| 20.0–25.0 | 1/0 | 0.89 ± 0.00 | 9/2 | 1.46 ± 0.15 | −0.57 ± 0.15 | −3.75 | 0.400 | ||
| 25.0–30.0 | 1/1 | 0.97 | 1/0 | 1.41 | −0.44 | – | – | ||
Notes. (1) Range in Petrosian R90, r. (2) and (4) n: Number of galaxies for CO-VG galaxies and CO-CS, respectively, in the R90, r range. nup (nlow): Number of upper (lower) limits of R21 in the Petrosian R90, r range. (3) and (5) Mean of the R21 ratio and its error of the CO-VG and the CO-CS sample, respectively, in the R90, r range. (6) Difference of the R21 ratio between the CO-VG and the CO-CS samples and its error. (7) σ = Δmean/err(Δmean). (8) p-value of the Kolmogorov-Smirnov test.
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