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Table 2

Designations, J2000 equatorial and Galactic coordinates of the positions, as marked in Figs. 1 and 2, toward which the H i column density vs. νlsr “spectra” presented in the main text and the appendices were extracted.

Source Sight line Equatorial l b
αJ2000 δJ2000 [deg] [deg]

Sgr B2 1 −28°25′09″ 0.6397 0.0569
Sgr B2 2 −28°24′42″ 0.6301 0.0267
Sgr B2 3 −28°26′51″ 0.6020 0.0495
Sgr B2 P39M −28°23′03″ 0.6676 0.0355
Sgr B2 P39N −28°22′21″ 0.6773 0.0290
G 10.62−0.39 1 −19°55′47″ 10.6233 0.3820
G 10.62−0.39 2 −19°57′08″ 10.5984 0.3833
G 10.62−0.39 P39 −19°55′50″ 10.6221 0.3814
W 33 1 −17°56′15″ 12.8079 0.2234
W 33 2 −17°55′45″ 12.8057 0.2019
G 31.41+0.31 1 −01°12′46″ 31.4116 + 0.3074
G 34.26+0.15 1 +01°14′40″ 34.2561 + 0.1447
G 34.26+0.15 2 +01°13′58″ 34.2491 + 0.1327
G 34.26+0.15 P39 +01°14′58″ 34.2562 + 0.1555
W 49 1 +09°06′00″ 43.1829 0.0281
W 49 2 +09°05′03″ 43.1661 0.0303
W 49 3 +09°06′12″ 43.1747 0.0052
W 49 4 +09°06′18″ 43.1708 + 0.0059
W 49 5 +09°07′06″ 43.1772 + 0.0224
W 49 6 +09°05′21″ 43.1502 + 0.0112
W 49 P39 +09°06′12″ 43.1654 + 0.0126
W 51 1 +14°32′52″ 49.5368 0.3944
W 51 2 +14°30′40″ 49.4883 0.3816
W 51 3 +14°31′07″ 49.4906 0.3700
W 51 4 +14°29′52″ 49.4679 0.3717
W 51 5 +14°29′58″ 49.4603 0.3541
W 51 6 +14°29′16″ 49.4225 0.3082
W 51 7 +14°27′16″ 49.3840 0.3070
W 51 8 +14°26′40″ 49.3705 0.3030
W 51 P39 +14°30′31″ 49.4872 0.3847
DR 21 1 +42°19′41″ 81.6817 + 0.5375

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