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A Three-Dimensional View of Turbulence: Constraints on Turbulent Motions in the HD 163296 Protoplanetary Disk using DCO$^+$
- Publication Year :
- 2017
-
Abstract
- Gas kinematics are an important part of the planet formation process. Turbulence influences planetesimal growth and migration from the scale of sub-micron dust grains through gas-giant planets. Radio observations of resolved molecular line emission can directly measure this non-thermal motion and, taking advantage of the layered chemical structure of disks, different molecular lines can be combined to map the turbulence throughout the vertical extent of a protoplanetary disk. Here we present ALMA observations of three molecules (DCO$^+$(3-2), C$^{18}$O(2-1) and CO(2-1)) from the disk around HD 163296. We are able to place stringent upper limits ($v_{\rm turb}<br />Comment: Accepted to ApJ
- Subjects :
- Physics
Earth and Planetary Astrophysics (astro-ph.EP)
Planetesimal
Molecular line
Turbulence
FOS: Physical sciences
Astronomy and Astrophysics
Astrophysics
Protoplanetary disk
01 natural sciences
Instability
Accretion (astrophysics)
Concentric ring
13. Climate action
Space and Planetary Science
Planet
0103 physical sciences
Astrophysics::Earth and Planetary Astrophysics
010306 general physics
010303 astronomy & astrophysics
Astrophysics::Galaxy Astrophysics
Astrophysics - Earth and Planetary Astrophysics
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....2c05b355c66da140d12c2082db21d79e