The Radial Profile of Dust Grain Size in the Protoplanetary Disk of DS Tau

Abstract

How do dust grains in protoplanetary disks overcome rapid radial drift and grow from micron size particles to planets is not well understood. The key is to search for evidence of dust accumulation and growth as a function of radius in the disk. We investigate the radial profile of grain size in the DS Tau disk by fitting multi-band ALMA observations with self-consistent radiative transfer models. The best-fit grain sizes range from centimeters in the inner disk down to 30 micron in the outer regions. Such an inside-out decreasing tendency is consistent with theories of dust evolution. Based on the best-fit model, we find that dust of 2 Jupiter masses has been depleted within the gap. By taking the gas-to-dust mass ratio into account, the lost mass is enough to form the 3.5 Jupiter mass planet inferred by literature hydrodynamic simulations. Moreover, our modeling also indicates that at the interface region between the gap and the ring, the grain size profile shows a discontinuity, with its amplitude dependent on the dust model adopted in the radiative transfer analysis. Future multi-wavelength observations at higher angular resolutions are required to better constrain the grain size and its variation in the vicinity of disk substructures.

arXiv comment10 pages, 8 figures, accepted for publication in MNRAS

References in corpus (59)

• Gaia Data Release 2. Summary of the contents and survey properties
• Spectral Energy Distributions of T Tauri Stars With Passive Circumstellar Disks
• Infrared Emission from Interstellar Dust. II. The Diffuse Interstellar Medium
• Protoplanetary Disks and Their Evolution
• The Disk Substructures at High Angular Resolution Project (DSHARP): I. Motivation, Sample, Calibration, and Overview
• Circumstellar Dust Disks in Taurus-Auriga: The Submillimeter Perspective
• Coagulation, fragmentation and radial motion of solid particles in protoplanetary disks
• Protoplanetary Disk Structures in Ophiuchus
• Resolved Images of Large Cavities in Protoplanetary Transition Disks
• ALMA Survey of Lupus Protoplanetary Disks I: Dust and Gas Masses
• Accretion Disks Around Young Objects. III. Grain Growth
• Gaps and Rings in an ALMA Survey of Disks in the Taurus Star-forming Region
• On the Submillimeter Opacity of Protoplanetary Disks
• An Optical Spectroscopic Study of T Tauri Stars. I. Photospheric Properties
• Ring shaped dust accumulation in transition disks
• The Disk Population of the Taurus Star-Forming Region
• Observations of Protoplanetary Disk Structures
• Dust Properties of Protoplanetary Disks in the Taurus-Auriga Star Forming Region from Millimeter Wavelengths
• Observations of gas flows inside a protoplanetary gap
• The Disk Substructures at High Angular Resolution Project (DSHARP): V. Interpreting ALMA maps of protoplanetary disks in terms of a dust model
• ALMA Survey of Lupus Protoplanetary Disks II: Gas Disk Radii
• Spiral Density Waves in a Young Protoplanetary Disk
• Evidence of fast pebble growth near condensation fronts in the HL Tau protoplanetary disk
• A Submillimeter View of Circumstellar Dust Disks in $\rho$ Ophiuchus
• Probing the structure of protoplanetary disks: a comparative study of DM Tau, LkCa 15 and MWC 480
• Dust Evolution and the Formation of Planetesimals
• Shadows cast by a warp in the HD 142527 protoplanetary disk
• Constraints on the Radial Variation of Grain Growth in the AS 209 Circumstellar Disk
• Dust grain growth in rho-Ophiuchi protoplanetary disks
• LkH$\alpha$ 330: Evidence for dust clearing through resolved submillimeter imaging
• Evidence for dust clearing through resolved submillimeter imaging
• Dust Evolution in Protoplanetary Disks
• One Solution to the Mass Budget Problem for Planet Formation: Optically Thick Disks with Dust Scattering
• A multi-wavelength analysis for interferometric (sub-)mm observations of protoplanetary disks: radial constraints on the dust properties and the disk structure
• A search for evolved dust in Herbig Ae stars
• The Disk Substructures at High Angular Resolution Project (DSHARP) - IX. A high definition study of the HD 163296 planet forming disk
• Molecules with ALMA at Planet-forming Scales (MAPS) V: CO gas distributions
• The Disk Substructures at High Angular Resolution Project (DSHARP): III. Spiral Structures in the Millimeter Continuum of the Elias 27, IM Lup, and WaOph 6 Disks
• The Radial Distribution of Dust Particles in the HL Tau Disk from ALMA and VLA Observations
• Dust evolution in protoplanetary disks around Herbig Ae/Be stars - The Spitzer view
• The newborn planet population emerging from ring-like structures in discs
• An azimuthal asymmetry in the LkHa 330 disk
• The anomalously low (sub)millimeter spectral indices of some protoplanetary disks may be explained by dust self-scattering
• Testing the theory of grain growth and fragmentation by millimeter observations of protoplanetary disks
• Self-induced dust traps: overcoming planet formation barriers
• Molecules with ALMA at Planet-forming Scales (MAPS) XIV: Revealing disk substructures in multi-wavelength continuum emission
• A New Look at T Tauri Star Forbidden Lines: MHD Driven Winds from the Inner Disk
• Gas and dust structures in protoplanetary disks hosting multiple planets
• Testing particle trapping in transition disks with ALMA
• The Ring Structure in the MWC 480 Disk Revealed by ALMA
• Hints on the origins of particle traps in protoplanetary disks given by the $M_{\mathrm{dust}}-M_{\star }$ relation
• Far-infrared to millimeter data of protoplanetary disks: dust growth in the Taurus, Ophiuchus, and Chamaeleon I star-forming regions
• Constraints on the radial distribution of the dust properties in the CQ Tau protoplanetary disk
• On the accuracy of the ALMA flux calibration in the time domain and across spectral windows
• The properties of the inner disk around HL Tau: Multi-wavelength modeling of the dust emission
• Dual-Wavelength ALMA Observations of Dust Rings in Protoplanetary Disks
• Is the gap in the DS Tau disc hiding a planet?
• Millimeter Gap Contrast as a Probe for Turbulence Level in Protoplanetary Disks
• Dynamical signatures of Rossby vortices in cavity-hosting disks