Position–velocity diagram towards the Lyman-α blob extracted from MUSE cube at 0 degrees of inclination toward the east. Blue, red, and green circles show the observed [C II] emissions (C10, C14, and C17) from Hill et al. (2020). The inset shows the slit used to extract the position–velocity map across LAB using the narrowband image (Sect. 3.2). The Lyman-α velocity is not corrected by Verhamme et al. (2018). This shows a spatial connection between the LAB and two SMG members of the PC.