The molecular clouds in a section of the third Galactic quadrant: observational properties and chemical abundance ratio between CO and its isotopologues

Chen Wang, Haoran Feng, Ji Yang +6

We compare the observational properties between ${}^{12}$CO, ${}^{13}$CO, and C${}^{18}$O and summarize the observational parameters based on 7069 clouds sample from the Milky Way Imagin…