H₂ 2.12 µm LBT observations toward the G105.42+9.88 (LkHα 234) YSO cluster. (Left panel) Pure H₂ line emission (color map) overlaid with the JVLA A-configuration 13 GHz continuum (cyan contours) observed by Moscadelli et al. (2019). The black patches are artifact from the image subtraction due to the fact that the K_s-band filter used to estimate the continuum contribution of the YSO LkHα 234 is centered at a slightly longer wavelength than the H₂ narrow-band filter. The emission patches south and northwest of LkHα 234 labeled as “UV” are due to gas excited by the ultra-violet (UV) radiation of a nearby HII region. The blue crosses mark artifacts due to source saturation. The knot labeled “A” corresponds in position with the H₂ knot “SP3” studied by Oh et al. (2018, see their Fig. 10). The solid and dashed white lines mark the directions of the elongated radio continuum and water maser proper motions in VLA 3B, respectively, and the dashed green line gives the direction of the water maser jet in VLA 2. (Right panel) Zoom-in on the VLA 3 and VLA 2 radio sources. Plotted contours are 4%, and 10% to 90% (in steps of 10%) of the map peak equal to 0.9 mJy beam⁻¹.