Map resolution: 22"-24" (7.5" grid), Velocity resolution: 0.05 km/s, Noise levels in Tmb (K) CCS was taken with a spectral window mode opened in 2016 season. Using the SW, we obtain 13CO/C18O/N2H+/CCS simultaneously. (without the SW, we obtained 12CO/13CO simultaneously, in 2014, 2015 season)
| rms noise level(in Tmb) | |||
|---|---|---|---|
| line | Orion | Aquila | M17 |
| 12CO | 0.9 K | 0.9 | 1.2 |
| 13CO | 0.3 K | 0.3 | 0.4 |
| C18O | 0.4 K | 0.4 | 0.5 |
| N2H+ | 0.4 K | 0.4 | 0.4 |
| CCS | 0.4 K | 0.3 | 0.4 |
Mapping area Av > 1.5 (= 7X10^-3 g cm^-2) for 12CO
according to Herschel observations, 90% of prestellar cores
are distributed along filaments with Av > 6.