Description of source "G300.97+1.15" from Voronkov et al. (2014)

The class I masers are spread over an elongated 20 × 40 arcsec2 region located approximately 15 arcsec south of the extended H II region revealed by the MAGMO data at 18 cm (see Fig. 1). The H II region has a compact core situated near its edge. This core is associated with the 6.7-GHz maser which is redshifted with respect to all detected class I masers (Caswell 2009; Green et al. 2012a). The 2MASS data revealed a chain of compact 2-µm sources roughly tracing the shape of the leading edge of the H II region a few arcseconds south of it (Mottram et al. 2007). There is also a weak filament between two 2-µm sources possibly tracing shocked gas.

One of these sources (located near B) is associated with a 10.4-µm source and also detected at 21 µm (midcourse space experiment).

Therefore, this source is likely to be the site of induced star formation. The class I masers are most likely associated with the new generation of YSOs, although the masers at B, the maser location closest to the H II region, could be related to the ionization front.