Table 1
Summary of the exposure times and the extraction regions in each molecular cloud.
| Cloud | Exposure time (s) | Region | Area (deg2) | NH (1021 cm−2) | ||
|---|---|---|---|---|---|---|
| Herschel | Planck R | Planck τ353 | ||||
| 1 | 1.69 |  |
 |
 |
||
| Cha II & III | 762 | 2 | 2.21 |  |
 |
 |
| 3 | 4.14 |  |
 |
 |
||
| 4 | 1.15 |  |
 |
 |
||
| 1 | 1.37 |  |
 |
 |
||
| CrA | 251 | 2 | 1.40 |  |
 |
 |
| 3 | 1.32 |  |
 |
 |
||
| 4 | 0.60 |  |
 |
 |
||
| 1 | 3.77 |  |
 |
 |
||
| Oph | 330 | 2 | 2.49 |  |
 |
 |
| 3 | 1.40 |  |
 |
 |
||
| 4 | 0.19 |  |
 |
 |
||
Notes. The exposure time is the average vignetting-corrected on-axis exposure time, assuming a nominal seven-TM effective area in the 0.2−3 keV band. The NH values from Herschel and Planck are the 50th percentile in each extraction region after convolving the maps to a common angular resolution of 5′. with the lower and upper bounds showing the 25th and 75th percentiles respectively.
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