Table 2
Integrated quantities for observations in OTF mode.
| Galaxy | Map size | σ1−0 | σ2−1 |
|
|
|
|
M |
|||||
| ″ × ″ | mK | mK | K km s-1 | K km s-1 | M⊙ pc-2 | 108 M⊙ | |||||||
| (1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | |||||
|
|
|||||||||||||
| NGC 4189 | 96 × 75 | 7 | 10 | 3.73 ± 0.34 | 3.43 ± 0.78 | 0.94 | 11.95 ± 1.1 | 17.4 ± 1.3 | |||||
| NGC 4298 | 120 × 60 | 11 | 14 | 19 ± 0.66 | 6.04 ± 2.4 | 0.76 | 23.32 ± 2.1 | 10.4 ± 0.8 | |||||
| NGC 4299* | 104 × 104 | 19 | 42 | 1.28 ± 0.28 | 1.2 ± 0.7 | .. | 4.1 ± 2.6 | 1.1 ± 0.2 | |||||
| NGC 4388 | 117 × 42 | 13 | 39 | 8.93 ± 0.75 | 10.8 ± 2.6 | 0.9 | 28.55 ± 2.4 | 7.13 ± 0.6 | |||||
Notes. Column 1: name; Col. 2: map size; Cols. 3, 4: measured uncertainties in 10.4 km s-1 channels for a 22
5 beam; Cols. 5, 6: average value of the integrated intensity; Col. 7: average 12CO(2–1)/12CO(1–0) intensity ratio; Col. 8: average surface mass density of H2 using 12CO(1–0) and the Galactic XCO; Col. 9: total H2 mass.
For this galaxy, because of the low S/N the results shown were obtained integrating inside an aperture of R = 35′′ (see Sect. 3.2 for details).
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