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)|
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.