Description of source "G305.25+0.25" from Voronkov et al. (2014)

This region also belongs to the G305 complex and has widespread star formation activity (e.g. Longmore et al. 2007). The class I methanol masers are distributed very tightly around a 6.7-GHz maser (Fig. 1; Caswell 2009; Green et al. 2012a). All class I maser emission is blueshifted with respect to the class II maser velocities.

An infrared overlay reveals a nearby filament most likely tracing PAH emission. There is also a nearby infrared source with 4.5-µm excess, but it is too compact to be considered as an EGO. No 18-cm continuum has been detected in the MAGMO project (rms is 1 mJy).

Note that the uncertainties of the fit are likely to be underestimated for the most redshifted Gaussian component of A at both 36 and 44 GHz (at −35.0 and −35.68 km s−1, respectively).