Free Access

Fig. 7


Plot of the intensity of pixels in the methyl formate maps versus the intensity of the same pixels in the dimethyl ether (top left), ethanol (top right), formic acid (bottom left) and methyl formate (bottom right) maps. Care has been taken to use transitions with similar Eu energies. The methyl formate (Eu = 305 K) at 223.534 GHz is compared to the dimethyl ether transition (Eu = 330 K) at 223.41 GHz and to the ethanol transition (Eu = 346 K) at at 223.629 GHz. The methyl formate transition (Eu = 50 K) at 223.500 GHz is compared to the formic acid transition (Eu = 72 K) at 223.915 GHz and to the methyl formate transition (Eu = 50 K) at 223.465 GHz. Dimethyl ether shows clearly the highest spatial correlation with methyl formate.

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.