Güdel–Benz diagram including ASKAP J181335−604720 and other M dwarfs. The red star marks ASKAP J181335−604720, while the blue circles, black squares, and black stars denote literature M dwarfs, activity-driven candidates, and auroral candidates from B. J. S. Pope et al. (2021), respectively. The green solid line shows the canonical Güdel–Benz relation, L_X/L_R = 10^15.5 Hz, and the shaded region indicates the ±0.5 dex scatter (M. Guedel & A. O. Benz 1993; A. O. Benz & M. Guedel 1994).