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Table 4

Ensemble masses of MIVC± samples on northern and southern Galactic hemispheres.

MH i MH2 MH MH i MH2 MH
[M] [M] [M] [M] [M] [M]

Ω ≥ ΩGASS Ω < ΩGASS

MIVC samples

north 7.0 × 104 1.8 × 105 2.5 × 105 1.2 × 103 1.4 × 103 2.6 × 103
south 3.6 × 104 3.0 × 104 6.6 × 104 5.7 × 102 2.8 × 102 8.5 × 102

MIVC+ samples

north 8.8 × 101 3.5 × 101 1.2 × 102 9.0 × 100 3.0 × 100 1.1 × 101
south 2.6 × 104 3.1 × 104 5.7 × 104 2.4 × 102 3.8 × 102 6.6 × 102

Notes. The values are separately calculated for objects larger or smaller than one GASS beam. The masses are median values derived from 1000 realisations of the vertical distribution with a scale height of hz = 0.5 kpc (Sect. 6.2). The masses for hz = 1.6 kpc (Marasco & Fraternali 2011) are about ten times higher. Only positive H2 column densities are considered.

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