Three-lane signatures of planets in planetesimal disks
Demidova et al
In massive numerical experiments we show that a planet embedded in a planetesimal disk induces a characteristic three-lane "planetosignature" representing a pattern of three stellar-centric rings, one bright coorbital with the planet, and two dark gaps in the radial distribution of the particles. The gaps correspond to orbital resonances 2/1 and 1/2 with the planet. This theoretical prediction is in perfect agreement with recent ALMA observations of the disk of HL Tau.