Constraints on the radial distribution of the dust properties in the CQ Tau protoplanetary disk

Abstract

Grain growth in protoplanetary disks is the first step towards the formation of the rocky cores of planets. Models predict that grains grow, migrate, and fragment in the disk and predict varying dust properties as a function of radius, age, and physical properties. High-angular resolution observations at more than one (sub-)mm wavelength are the essential tool for constraining grain growth and migration on the disk midplane. We developed a procedure to analyze self-consistently multi wavelength (sub-)mm continuum interferometric observations of protoplanetary disks to constrain the radial distribution of dust properties. We apply this technique to existing multi frequency continuum mm observations of the disk around CQ Tau, a A8 pre-main sequence star with a well-studied disk. We demonstrate that our models can be used to simultaneously constrain the disk and dust structure. In CQ Tau, the best-fitting model has a radial dependence of the maximum grain size, which decreases from a few cm in the inner disk (<40 AU) to a few mm at 80 AU. Nevertheless, the currently available dataset does not allow us to exclude the possibility of a uniform grain size distribution at a 3sigma level.

7 pages, A&A in press

References in corpus (9)

• Coagulation, fragmentation and radial motion of solid particles in protoplanetary disks
• Gas- and dust evolution in protoplanetary disks
• Structure and evolution of pre-main sequence circumstellar disks
• Survival of the mm-cm size grain population observed in protoplanetary disks
• Testing the theory of grain growth and fragmentation by millimeter observations of protoplanetary disks
• Disks around CQ Tau and MWC 758: dense PDR or gas dispersal?
• Investigating grain growth in disks around southern T Tauri stars at millimetre wavelengths
• Large grains in disks around young stars: ATCA observations of WW Cha, RU Lup, and CS Cha
• Probing Dust Settling in Proto-planetary Disks with ALMA

Cited by in corpus (45)

• Forming the cores of giant planets from the radial pebble flux in protoplanetary discs
• Dust Evolution and the Formation of Planetesimals
• Inside-Out Planet Formation
• A Millimeter Continuum Size-Luminosity Relationship for Protoplanetary Disks
• Dust Evolution in Protoplanetary Disks
• A multi-wavelength analysis for interferometric (sub-)mm observations of protoplanetary disks: radial constraints on the dust properties and the disk structure
• Evidence for the formation of comet 67P/Churyumov-Gerasimenko through gravitational collapse of a bound clump of pebbles
• The Radial Distribution of Dust Particles in the HL Tau Disk from ALMA and VLA Observations
• Physical properties of dusty protoplanetary disks in Lupus: evidence for viscous evolution?
• Dust evolution in protoplanetary discs and the formation of planetesimals. What have we learned from laboratory experiments?
• Grain Growth in the Circumstellar Disks of the Young Stars CY Tau and DoAr 25
• How planetary growth outperforms migration
• Measurement of Circumstellar Disk Sizes in the Upper Scorpius OB Association with ALMA
• The time evolution of dusty protoplanetary disc radii: observed and physical radii differ
• Brown dwarf disks with ALMA: evidence for truncated dust disks in Ophiuchus
• Brown dwarf disks with ALMA
• ALMA observations of polarization from dust scattering in the IM Lup protoplanetary disk
• The formation of the solar system
• Millimetre spectral indices of transition disks and their relation to the cavity radius
• Characterizing magnetic field morphologies in three Serpens protostellar cores with ALMA
• ALMA observations of the debris disk around the young Solar Analog HD 107146
• The SEEDS High Contrast Imaging Survey of Exoplanets around Young Stellar Objects
• Resolving Protoplanetary Disks at Millimeter Wavelengths by CARMA
• A dust and gas cavity in the disc around CQ Tau revealed by ALMA
• How to Detect the Signatures of Self-Gravitating Circumstellar Discs with the Atacama Large Millimetre/sub-millimetre Array
• From grains to pebbles: the influence of size distribution and chemical composition on dust emission properties
• Dust properties across the CO snowline in the HD 163296 disk from ALMA and VLA observations
• A highly non-Keplerian protoplanetary disc: Spiral structure in the gas disc of CQ Tau
• A Multi-Wavelength Analysis of Dust and Gas in the SR 24S Transition Disk
• Resolving structure of the disk around HD100546 at 7 mm with ATCA
• Detectability of embedded protoplanets from hydrodynamical simulations
• The properties of the inner disk around HL Tau: Multi-wavelength modeling of the dust emission
• The Millimeter Continuum Size-Frequency Relationship in the UZ Tau E Disk
• Formation of Comets
• Resolved Multifrequency Radio Observations of GG Tau
• Consistent dust and gas models for protoplanetary disks IV. A panchromatic view of protoplanetary disks
• Inside-Out Planet Formation. IV. Pebble Evolution and Planet Formation Timescales
• Asymmetric mid-plane gas in ALMA images of HD~100546
• Forming the Cold Classical Kuiper Belt in a light Disk
• External or internal companion exciting the spiral arms in CQ Tau?
• Planetary core formation via multi-species pebble accretion
• Dynamics of Dusty Vortices II: Stability of 2D dust laden vortices
• The role of density perturbation on planet formation by pebble accretion
• Multi-frequency analysis of the ALMA and VLA high resolution continuum observations of the substructured disc around CI Tau. Preference for sub-mm-sized low-porosity amorphous carbon grains
• The Radial Profile of Dust Grain Size in the Protoplanetary Disk of DS Tau