On the methanol emission detection in the TW Hya disc: the role of grain surface chemistry and non-LTE excitation

S. Yu. Parfenov, D. A. Semenov, Th. Henning +3

The recent detection of gas-phase methanol (CH${}_3$OH) lines in the disc of TW Hya by Walsh et al. provided the first observational constraints on the complex O-bearing organic cont…