Tracing large-scale structures in circumstellar disks with ALMA
arXiv:1212.1793 · doi:10.1051/0004-6361/201220390
Abstract
Planets are supposed to form in circumstellar disks. The gravitational potential of a planet perturbs the disk and leads to characteristic structures, i.e. spiral waves and gaps, in the disk's density profile. We perform a large-scale parameter study of the observability of these planet-induced structures in circumstellar disks with ALMA. On the basis of HD and MHD simulations, we calculated the disk temperature structure and (sub)mm images of these systems. These were used to derive simulated ALMA images. Because appropriate objects are frequent in Taurus, we focused on a distance of 140pc and a declination of 20°. The explored range of star-disk-planet configurations consists of 6 HD simulations (including magnetic fields and different planet masses), 9 disk sizes, 15 total disk masses, 6 different central stars, and two different grain size distributions. On almost all scales and in particular down to a scale of a few AU, ALMA is able to trace disk structures induced by planet-disk interaction or by the influence of magnetic fields on the wavelength range between 0.4 and 2.0mm. In most cases, the optimum angular resolution is limited by the sensitivity. However, within the range of typical masses of protoplanetary disks (0.1-0.001Msun) the disk mass has a minor impact on the observability. It is possible to resolve disks down to 2.67e-6Msun and trace gaps induced by a planet with M_p/M_s = 0.001 in disks with 2.67e-4Msun with a signal-to-noise ratio greater than three. The central star has a major impact on the observability of gaps, as well as the considered maximum grainsize of the dust in the disk. In general, it is more likely to trace planet-induced gaps in our MHD models, because gaps are wider in the presence of magnetic fields. We also find that zonal flows resulting from MRI create gap-like structures in the disk's re-emission radiation, which are observable with ALMA.
17 pages, 21 figures
References in corpus (47)
- Dust Grain Size Distributions and Extinction in the Milky Way, LMC, and SMC
- Disk Frequencies and Lifetimes in Young Clusters
- PLUTO: a Numerical Code for Computational Astrophysics
- Optical Images of an Exosolar Planet 25 Light Years from Earth
- On the width and shape of gaps in protoplanetary disks
- An Unsplit Godunov Method for Ideal MHD via Constrained Transport
- A comparative study of disc-planet interaction
- Turbulence in Accretion Disks. Vorticity Generation and Angular Momentum Transport via the Global Baroclinic Instability
- Ring shaped dust accumulation in transition disks
- Protoplanetary Disk Structures in Ophiuchus II: Extension to Fainter Sources
- Zonal Flows and Long-Lived Axisymmetric Pressure Bumps in Magnetorotational Turbulence
- Hydrodynamic turbulence cannot transport angular momentum effectively in astrophysical disks
- The interaction of planets with a disc with MHD turbulence IV: Migration rates of embedded protoplanets
- Planets opening dust gaps in gas disks
- Nested-grid calculations of disk-planet interaction
- Trapping Solids at the Inner Edge of the Dead Zone: 3-D Global MHD Simulations
- The Circumstellar Disk of the Butterfly Star in Taurus
- Turbulence and Steady Flows in 3D Global Stratified MHD Simulations of Accretion Disks
- 3D-radiation hydro simulations of disk-planet interactions: I. Numerical algorithm and test cases
- The interaction of a giant planet with a disc with MHD turbulence II: The interaction of the planet with the disc
- Constraining the Planetary System of Fomalhaut Using High-Resolution ALMA Observations
- On the Observability of Giant Protoplanets in Circumstellar Disks
- Dust Transport in Protostellar Disks Through Turbulence and Settling
- MC3D - 3D Continuum Radiative Transfer, Version 2
- The interaction of a giant planet with a disc with MHD turbulence I: The initial turbulent disc models
- Planet gaps in the dust layer of 3D protoplanetary disks: I. Hydrodynamical simulations of T Tauri disks
- Detecting planets in protoplanetary disks: A prospective study
- 3D MHD Simulations of Planet Migration in Turbulent Stratified Disks
- The interaction of planets with a disc with MHD turbulence III: Flow morphology and conditions for gap formation in local and global simulations
- Gaps in Protoplanetary Disks as Signatures of Planets: I. Methodology and Validation
- The T Tauri star RY Tau as a case study of the inner regions of circumstellar dust disks
- Gap Formation by Planets in Turbulent Protostellar Disks
- Planet gaps in the dust layer of 3D protoplanetary disks. II. Observability with ALMA
- The circumstellar disc in the Bok globule CB 26: Multi-wavelength observations and modelling of the dust disc and envelope
- Resolved images of self-gravitating circumstellar discs with ALMA
- Submillimeter Structure of the Disk of the Butterfly Star
- The circumstellar disk of HH 30. Searching for signs of disk evolution with multi-wavelength modeling
- Chemical and thermal structure of protoplanetary disks as observed with ALMA
- Signatures of Planet Formation in Gravitationally Unstable Disks
- Observational Properties of Proto-planetary Disk Gaps
- Planet Shadows in Protoplanetary Disks. II: Observable Signatures
- Observing planet-disk interaction in debris disks
- Transition disk chemistry and future prospects with ALMA
- Radiative Transfer on Perturbations in Protoplanetary Disks
- Circumstellar disks and planets. Science cases for next-generation optical/infrared long-baseline interferometers
- Detectability of giant planets in protoplanetary disks by CO emission lines
- Mid-infrared observations of the transitional disks around DH Tau, DM Tau, and GM Aur
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- Gaps, Rings, and Non-Axisymmetric Structures in Protoplanetary Disks - From Simulations to ALMA Observations
- Observational Signatures of Planets in Protoplanetary Disks I: Gaps Opened by Single and Multiple Young Planets in Disks
- A Spatially Resolved Vertical Temperature Gradient in the HD 163296 Disk
- The minimum mass of detectable planets in protoplanetary discs and the derivation of planetary masses from high resolution observations
- Gaps in the HD169142 protoplanetary disk revealed by polarimetric imaging: Signs of ongoing planet formation?
- On the formation of multiple concentric rings and gaps in protoplanetary disks
- What is the Mass of a Gap-Opening Planet?
- Modeling Dust Emission of HL Tau Disk Based on Planet-Disk Interactions
- An ALMA survey of DCN/HCN and DCO/HCO in protoplanetary disks
- Gaps, rings, and non-axisymmetric structures in protoplanetary disks - Emission from large grains
- ALMA images of discs: are all gaps carved by planets?
- Inferring giant planets from ALMA millimeter continuum and line observations in (transition) disks
- Long Term Evolution of Planet-Induced Vortices in Protoplanetary Disks
- The accumulation and trapping of grains at planet gaps: effects of grain growth and fragmentation
- How to Detect the Signatures of Self-Gravitating Circumstellar Discs with the Atacama Large Millimetre/sub-millimetre Array
- Simulated Observations of Young Gravitationally Unstable Protoplanetary Discs
- Gaps in Protoplanetary Disks as Signatures of Planets: II. Inclined Disks
- Directly observing continuum emission from self-gravitating spiral waves
- Tracing planet-induced structures in circumstellar disks using molecular lines
- Companion-driven evolution of massive stellar binaries
- Vortex Formation and Evolution in Planet Harboring Disks under Thermal Relaxation
- Interferometric study on the temporal variability of the brightness distributions of protoplanetary disks
- Structures in circumbinary disks: Prospects for observability
- Feasibility of detecting and characterizing embedded low-mass giant planets in gaps in the VIS/NIR wavelength range
- Clumpy accretion in pre-main-sequence stars as a source of perturbations in circumstellar disks
- Planet-induced disk structures: A comparison between (sub)mm and infrared radiation
- Long-Term Dynamics of Planetesimals in Planetary Chaotic Zones
- Catastrophic events in protoplanetary disks and their observational manifestations
- Monte Carlo post-processing for radiation hydro simulations of accreting planets in protoplanetary disks