PDS 70: A transition disk sculpted by a single planet

Abstract

The wide, deep cavities of transition disks are often believed to have been hollowed out by nascent planetary systems. PDS 70, a $\sim 5$ Myr old transition disk system in which a multi-Jupiter-mass planet candidate at 22 au coexists with a $\sim 30$ au gas and $\sim 60$ au dust-continuum gap, provides a valuable case study for this hypothesis. Using the PEnGUIn hydrodynamics code, we simulate the orbital evolution and accretion of PDS 70b in its natal disk over the lifetime of the system. When the accreting planet reaches about 2.5 Jupiter masses, it spontaneously grows in eccentricity and consumes material from a wide swathe of the PDS 70 disk; radiative transfer post-processing with DALI shows that this accurately reproduces the observed gap profile. Our results demonstrate that super-Jupiter planets can single-handedly carve out transition disk cavities, and indicate that the high eccentricities measured for such giants may be a natural consequence of disk-planet interaction.

ApJL accepted. Additional comments and questions welcome

References in corpus (8)

• A comparative study of disc-planet interaction
• Highly structured disk around the planet host PDS 70 revealed by high-angular resolution observations with ALMA
• Can grain growth explain transition disks?
• The Structure of Pre-transitional Protoplanetary Disks. II. Azimuthal Asymmetries, Different Radial Distributions of Large and Small Dust Grains in PDS~70
• The Sizes and Depletions of the Dust and Gas Cavities in the Transitional Disk J160421.7-213028
• Shallow Cavities in Multiple-Planet Systems
• Simulating planet migration in globally evolving disks
• Planetary Torque in 3D Isentropic Disks

Cited by in corpus (9)

• Are the spiral arms in the MWC 758 protoplanetary disc driven by a companion inside the cavity?
• Dynamical Evidence of a Spiral Arm--Driving Planet in the MWC 758 Protoplanetary Disk
• Revisiting migration in a disc cavity to explain the high eccentricities of warm Jupiters
• Is the gap in the DS Tau disc hiding a planet?
• A Simple Time-Dependent Method for Calculating Spirals: Applications to Eccentric Planets in Protoplanetary discs
• External or internal companion exciting the spiral arms in CQ Tau?
• Tying the geometrical traits of massive young stellar objects and their discs to a potential evolutionary sequence using infrared observations
• Estimating the depth of gaps opened by planets in eccentric orbit
• A spatially-resolved large cavity of the J0337 protoplanetary disk in Perseus