Velocity dispersion (moment 2) maps of ¹²CO (left) and ¹³CO (right) line emission over the velocity range from +40 to +60 km s⁻¹, overlaid with the GLEAM 170–230 MHz radio-continuum-emission contours (~2'.25 angular resolution). The contour levels are 0.76 and 0.81 Jy beairr^–1. The black dashed circles are the same as in Fig. 1, indicating the extent of G16.11–0.51 and SNR G16.0–0.5, respectively. The H II regions are indicated by magenta circles in the right panel, and all are introduced from the WISE catalog of Galactic H II regions (Anderson et al. 2014), which is one of the most complete catalogs of H II regions in the Galaxy. Radio-continuum sources extracted from the THOR survey are marked by black solid boxes (Bihr et al. 2016; Wang et al. 2018).