Weak Turbulence in the HD 163296 Protoplanetary Disk Revealed by ALMA CO Observations

Abstract

Turbulence can transport angular momentum in protoplanetary disks and influence the growth and evolution of planets. With spatially and spectrally resolved molecular emission line measurements provided by (sub)millimeter interferometric observations, it is possible to directly measure non-thermal motions in the disk gas that can be attributed to this turbulence. We report a new constraint on the turbulence in the disk around HD 163296, a nearby young A star, determined from ALMA Science Verification observations of four CO emission lines (the CO(3-2), CO(2-1), 13CO(2-1), and C18O(2-1) transitions). The different optical depths for these lines permit probes of non-thermal line-widths at a range of physical conditions (temperature and density) and depths into the disk interior. We derive stringent limits on the non-thermal motions in the upper layers of the outer disk such that any contribution to the line-widths from turbulence is <3% of the local sound speed. These limits are approximately an order of magnitude lower than theoretical predictions for full-blown MHD turbulence driven by the magneto-rotational instability, potentially suggesting that this mechanism is less efficient in the outer (R>30AU) disk than has been previously considered.

Accepted to ApJ

References in corpus (18)

• Protoplanetary disk masses from CO isotopologues line emission
• Gas and Dust Emission at the Outer Edge of Protoplanetary Disks
• Global MHD simulations of stratified and turbulent protoplanetary discs. I. Model properties
• Parameters of Herbig Ae/Be and Vega-type stars
• Millimeter imaging of HD 163296: probing the disk structure and kinematics
• Reprocessing of Ices in Turbulent Protoplanetary Disks: Carbon and Nitrogen Chemistry
• ALMA hints at the presence of two companions in the disk around HD 100546
• Global MHD simulations of stratified and turbulent protoplanetary discs. II. Dust settling
• Accretion and destruction of planetesimals in turbulent disks
• Midplane sedimentation of large solid bodies in turbulent protoplanetary discs
• Chemistry in Protoplanetary Disks: the gas-phase CO/H2 ratio and the Carbon reservoir
• Dust Coagulation and Settling in Layered Protoplanetary Disks
• Chemistry and line emission from evolving Herbig Ae disks
• Signatures of MRI-Driven Turbulence in Protoplanetary Disks: Predictions for ALMA Observations
• Molecular line radiative transfer in protoplanetary disks: Monte Carlo simulations versus approximate methods
• Rossby wave instability does not require sharp resistivity gradients
• CO/H2 Abundance Ratio ~ 10^{-4} in a Protoplanetary Disk
• Gravito-Turbulent Disks in 3D: Turbulent Velocities vs. Depth

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