Infrared and molecular spectrum line emissions of G323.46-0.08. Left: three-color map of the G323.46-0.08 region. Red, green, and blue backgrounds show the 24, 8, and 4.5 µm emission, respectively. The white contours denote the ¹³CO (J = 2−1) emission integrated velocity from −70 to −63 km s⁻¹, which starts from 3 K km s⁻¹ and with a step of 9 K km s⁻¹². The cyan crosses and triangles are Class I and II YSOs, respectively. The red circles mark the Hπ regions identified by Anderson et al. (2014). The red cross is the central high mass clump AGAL323.459-0.079 in hub-filament system G323.46-0.08. Right: velocity map of G323.46-0.08. The color background is the velocity field of ¹³CO (J = 2−1). The black contours are the integrated intensity of the ¹³CO (J = 2−1) emission (same as in the left panel). The red contour marks the ¹³CO (J = 2−1) emission in the region of F-north integrated velocity from −70 to −68.25 km s⁻¹. The red dotted line and the white interrupted dashed line represent the ridgeline of F-north, F-west, and F-south. All ridge lines are formed by connecting the peak intensity points of ¹³CO (J = 2−1) in the filament). The white circle denotes the high velocity component appears in F-south part 2.