This figure shows the large-scale radio continuum and molecular gas emission around Cloud H. Left panel: 1.3 GHz radio continuum emission obtained from MeerKAT survey Goedhart et al. (2024). The background displays 1.3 GHz emission, overlaid with yellow contours representing 610 MHz emission at levels of 1.1 (5σ) and 1.54 (7σ) mJy beam⁻¹ from Paredes et al. (2014). White contours represent the 850 µm continuum emission obtained with JCMT/SCUBA-2 (Shen et al. 2024), with levels at 55, 220, 440 mJy beam⁻¹. The cyan rectangle indicates the field of view for the ALMA observation. Middle panel: 5.8 GHz radio continuum emission obtained from GLOSTAR survey (Medina et al. 2019). The background displays 5.8 GHz emission, with yellow contours representing 610 MHz emission. Other symbols are the same as those in the left panel. Right panel: ¹³CO integrated intensity map from FUGIN survey (Umemoto et al. 2017). The background shows ¹³CO (1–0) emission, with yellow contours representing 610 MHz emission. The integrated velocity range is shown in the upper-left corner. Other symbols are the same as those in the left panel.