Description of source "G22.04+0.22" from Towner et al. (2017)


We detect two 1.3 cm continuum sources in the field. CM1 is a weak (0.6 mJy beam−1, Table 4), unresolved source that is coincident with the EGO, compact 24 μm emission, and 6.7 GHz CH3OH masers (Cyganowski et al. 2009). A second centimeter continuum source is detected ~15² NW of the EGO and does not appear to be asso-ciated. Neither centimeter continuum source was detected by Cyganowski et al. (2011a), consistent with their 4σ upper limit of 1 mJy at 1.3 cm.

We detect thermal 25 GHz CH3OH emission coincident with CM1 and the 6.7 GHz masers (Figure 1). We also detect two 25 GHz CH3OH masers, one of which is <2″ SW of CM1 and its thermal 25 GHz CH3OH emission. The second 25 GHz maser is coincident with a line of 44 GHz CH3OH masers that extends to the south of the EGO (Cyganowski et al. 2009).