Free Access

Fig. A.2


Rotation diagrams for 13CH3OH (upper panel) and CH2DOH (lower panel). An emitting region size of is assumed (see text). The parameters Nu, gu, and Eup are the column density, the degeneracy, and the energy of the upper level, respectively. The derived value of the rotational temperature is reported for 13CH3OH. For CH2DOH the Trot derived from the 13C-isotopologues is assumed to derive the column density. The two CH2DOH transitions with excitation energies higher than 400 K as well as the Cycle 4 point are excluded from the fit, although they are in good agreement with it.

This figure is made of several images, please see below:

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.