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Table 1
CO (J = 3–2) line absorption velocity components toward Sgr A* continuum source and estimated column densities.
 (km s−1) |
Widtha, Δ v (km s−1) | Depth, τabs, CO 3−2 | Nabs (CO)b (cm−2) | N(H2)c (cm−2) | Componentd |
|---|---|---|---|---|---|
| −315 ± 3 | 3 ± 1 | 0.009 | 1.27 × 1015 | 3.17 × 1019 | New. ENVG. Near Sgr A*? |
| −264 ± 1 | 11 ± 1 | 0.053 | 2.89 × 1016 | 7.23 × 1020 | New. ENVG. Near Sgr A*? |
| −198 ± 1 | 5 ± 3 | 0.021 | 4.83 × 1015 | 1.21 × 1020 | HNVG. Foreground cloud |
| −175 ± 1 | 11 ± 1 | 0.086 | 4.76 × 1016 | 1.19 × 1021 | HNVG. Foreground cloud |
| −145 ± 2 | 4 ± 1 | 0.269 | 4.91 × 1016 | 1.23 × 1021 | Foreground gas around GC? |
| −135 ± 2 | 7 ± 2 | 1.309 | 4.33 × 1017 | 1.08 × 1022 | Foreground gas around GC |
| −121 ± 2 | 6 ± 2 | 0.269 | 8.48 × 1016 | 2.12 × 1021 | Foreground gas around GC? |
| −73 ± 1 | 5 ± 1 | 0.842 | 2.09 × 1017 | 5.22 × 1021 | CND? |
| −53 ± 1 | 6 ± 1 | ≫1 | – | – | 3-kpc arm feature |
| −31 ± 1 | 5 ± 1 | ≫1 | – | – | −30 km s−1 or 4-kpc arm |
| −7 ± 1 | 19 ± 1 | ≫1 | – | – | Galactic arms |
| 12 ± 1 | 16 ± 1 | ≫1 | – | – | Galactic arms |
| 37 ± 1 | 21 ± 1 | ≫1 | – | – | GC clouds |
| 50 ± 1 | 5 ± 1 | 0.734 | 1.76 × 1017 | 4.41 × 1021 | GC clouds |
| 61 ± 1 | 8 ± 1 | 2.523 | 1.01 × 1018 | 2.54 × 1022 | GC clouds |
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