Dense Molecular Ring-like structure in gaseous CO depletion region G34.74-0.12

Shuting Lin, Siyi Feng, Fengwei Xu +14

We report the discovery of a dense molecular ring-like structure in a dense (10${}^5$ cm${}^{-3}$), cold (pc-scale CO depletion at a factor of 5), and young (10${}^4$ year) star-forming…