Crida et al. (2006) criterion of Eq. (2) applied to the gap-opening planet mass in the PPD around HD 97048. The green-shaded area shows the masses at which a planet would carve a deep gap in the gas at the observed location of 127 au (Ginski et al. 2016), assuming a disk viscosity parameter of α = 10⁻³. The vertical blue dash-dotted lines correspond to a planet creating a depleted region of width 5 R_Hill and 8 R_Hill, following Eq. (1). The red dashed line indicates the estimated perturber mass by Dong & Fung (2017b), using a detailed hydrodynamical + radiative transfer simulation of the gap morphological parameters.