H I profiles obtained with: (a) diagonal cut at l = 316°.79, indicated with a red line in Fig. 2; (b) cut at l = 316°.81, indicated with a blue line in Fig. 2, where the HPBW of the G316.8−0.1−A profile is its deconvolved angular size; (c) cut at l = 316°.77, indicated with a blue line in Fig. 2, where the HPBW of the G316.8−0.1−B profile is the angular size of the part along the Galactic plane; (d) cut at l = 316°.79, indicated with a blue line in Fig. 2, where the HPBW of the G316.8−0.1−B profile is the angular size of the part perpendicular to the Galactic plane. Red slashed lines represent the adopted background levels.