Lupus ¹²CO and ¹³CO (J = 2− 1) line luminosity are presented with black squares (empty squares if the ¹²CO line is partially absorbed by the cloud), where the ¹³CO nondetections are shown as upper limits by the black arrows and the ¹²CO (and ¹³CO) nondetections are shown as upper limits by the gray arrows. We note that the 3σ upper limits are calculated using an aperture equal to the size of the typical beam (i.e., ~ 0.21–0.25″, equivalent to~30–40 au at 160 pc; see Ansdell et al. 2018). DALI model results from Miotello et al. (2016) are shown with filled circles, color-coded by disk mass. Different symbol sizes represent different values of the critical radius R_c.