Table 1.
Molecular and atomic gas properties at matched 6.3″ resolution.
| Whole TDG | North (a) | South (b) | |
|---|---|---|---|
| Total H2 mass (M⊙) | 8.6 × 107 | 7.3 × 107 | 1.3 × 107 |
| Total H I mass (M⊙) | 8.4 × 107 | 4.9 × 107 | 3.5 × 107 |
| Mean ΣH2 (M⊙ pc−2) | 4.8 | 5.7 | 2.5 |
| Mean ΣH I (M⊙ pc−2) | 8.1 | 7.8 | 8.4 |
| Total H2 mass/total H I mass | 1.02 | 1.47 | 0.37 |
| Mean ΣH2/ΣH I | 0.59 | 0.73 | 0.30 |
| Mean R21= CO(2–1)/CO(1–0) | 0.52 | 0.56 | 0.38 |
Notes.
Measurements at matched spatial resolution (6.3″) applying a mask of significance to both cubes (4σ dilated mask); thus, the total H2 mass quoted here is lower than implied by ALMA at native resolution without any masking (1.6 × 108 M⊙). The mean ΣH2 and ΣH I are calculated for pixels with significant detections of H2 and H I, respectively; this means that they are averaged over different areas.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.