Global axisymmetric simulations of photoevaporation and magnetically driven protoplanetary disk winds

Abstract

Photoevaporation and magnetically driven winds are two independent mechanisms to remove mass from protoplanetary disks. In addition to accretion, the effect of these two principles acting concurrently could be significant and the transition between those two has not been extensively studied and quantified in the literature yet. In order to contribute to the understanding of disk winds, we present the phenomena emerging in the framework of two-dimensional axisymmetric, non-ideal magnetohydrodynamic simulations including EUV-/ X-ray driven photoevaporation. Of particular interest are the examination of the transition region between photoevaporation and magnetically driven wind, the possibility of emerging magneto-centrifugal wind effects, as well as the morphology of the wind itself depending on the strength of the magnetic field. We use the PLUTO code in a 2.5D axisymmetric configuration with additional treatment of EUV-/ X-ray heating and dynamic ohmic diffusion based on a semi-analytical chemical model. We identify the transition between both outflow types to occur for values of the initial plasma beta $\beta \ge 10^7$, while magnetically driven winds generally outperform photoevaporation for stronger fields. In our simulations we observe irregular and asymmetric outflows for stronger magnetic fields. In the weak field regime the photoevaporation rates are slightly lowered by perturbations of the gas density in the inner regions of the disk. Overall, our results predict a wind with a lever arm smaller than 1.5, consistent with a hot magneto-thermal wind. Stronger accretion flows are present for values of $\beta <10^7$.

arXiv commentPublished in A&A 633, A21 (2020)

References in corpus (52)

• Disk Frequencies and Lifetimes in Young Clusters
• PLUTO: a Numerical Code for Computational Astrophysics
• Rossby Wave Instability of Keplerian Accretion Disks
• Wind-driven Accretion in Protoplanetary Disks. I: Suppression of the Magnetorotational Instability and Launching of the Magnetocentrifugal Wind
• The PLUTO Code for Adaptive Mesh Computations in Astrophysical Fluid Dynamics
• Photoevaporation of Circumstellar Disks due to External FUV Radiation in Stellar Aggregates
• Linear and nonlinear evolution of the vertical shear instability in accretion discs
• Turbulence in Accretion Disks. Vorticity Generation and Angular Momentum Transport via the Global Baroclinic Instability
• Photoevaporation of Circumstellar Disks by FUV, EUV and X-ray Radiation from the Central Star
• Radiation-Hydrodynamic Models of X-Ray & EUV Photoevaporating Protoplanetary Discs
• The locality of transport in self-gravitating accretion discs
• On the theory of disc photoevaporation
• Global simulations of protoplanetary disks with ohmic resistivity and ambipolar diffusion
• Protoplanetary disk lifetimes vs stellar mass and possible implications for giant planet populations
• Disk Winds Driven by Magnetorotational Instability and Dispersal of Proto-Planetary Disks
• Global simulations of protoplanetary disks with net magnetic flux: I. Non-ideal MHD case
• Local Study of Accretion Disks with a Strong Vertical Magnetic Field: Magnetorotational Instability and Disk Outflow
• Photoevaporation of Circumstellar Disks around Young Stars
• Magnetic fields in protoplanetary disks
• MHD simulations of the magnetorotational instability in a shearing box with zero net flux. I. The issue of convergence
• On Why Disks Generate Magnetic Towers and Collimate Jets
• Electric charging of dust aggregates and its effect on dust coagulation in protoplanetary disks
• Towards a Global Evolutionary Model of Protoplanetary Disks
• Testing the locality of transport in self-gravitating accretion discs - II. The massive disc case
• Turbulent Mixing and the Dead Zone in Protostellar Disks
• MHD simulations of jet acceleration from Keplerian accretion disks: the effects of disk resistivity
• Magneto-thermal Disk Wind from Protoplanetary Disks
• Trapping Solids at the Inner Edge of the Dead Zone: 3-D Global MHD Simulations
• Magnetorotational Instability Driven Accretion in Protoplanetary Disks
• Magnetized Accretion-Ejection Structures: 2.5D MHD simulations of continuous Ideal Jet launching from resistive accretion disks
• Global Simulations of the Inner Regions of Protoplanetary Disks with Comprehensive Disk Microphysics
• X-ray irradiated protoplanetary disk atmospheres II: Predictions from models in hydrostatic equilibrium
• Protoplanetary Disk Winds by Magnetorotational Instability : Formation of an Inner Hole and a Crucial Assist for Planet Formation
• Convective Overstability in radially stratified accretion disks under thermal relaxation
• Local outflows from turbulent accretion disks
• The dispersal of protoplanetary discs I: A new generation of X-ray photoevaporation models
• Turbulence and Steady Flows in 3D Global Stratified MHD Simulations of Accretion Disks
• Models of Chemistry, Thermal Balance and Infrared Spectra from Intermediate-Aged Disks around G and K stars
• A New Look at T Tauri Star Forbidden Lines: MHD Driven Winds from the Inner Disk
• Magnetized Accretion and Dead Zones in Protostellar Disks
• Global Simulations of Protoplanetary Disk Outflows with Coupled Non-ideal Magnetohydrodynamics and Consistent Thermochemistry
• Constraining the Lifetime of Circumstellar Disks in the Terrestrial Planet Zone: A Mid-IR Survey of the 30-Myr-old Tucana-Horologium Association
• Bipolar jets launched from magnetically diffusive accretion disks. I. Ejection efficiency vs field strength and diffusivity
• Heating and Cooling Protostellar Disks
• Numerical convergence in self-gravitating disc simulations: initial conditions and edge effects
• Stringent limits on the magnetic field strength in the disc of TW Hya: ALMA observations of CN polarisation
• Bipolar jets launched from accretion disks. II. Formation of symmetric and asymmetric jets and counter jets
• Modelling MHD accretion-ejection - from the launching area to propagation scales
• Lack of PAH emission toward low-mass embedded young stellar objects
• Characterising thermal sweeping: a rapid disc dispersal mechanism
• An extensive numerical survey of the correlation between outflow dynamics and accretion disk magnetization
• Rapid radiative clearing of protoplanetary discs

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• Global Hydromagnetic Simulations of Protoplanetary Disks with Stellar Irradiation and Simplified Thermochemistry
• Global Three-Dimensional Simulations of Outer Protoplanetary Disks with Ambipolar Diffusion
• The interpretation of protoplanetary disc wind diagnostic lines from X-ray photoevaporation and analytical MHD models
• Photoevaporative Dispersal of Protoplanetary Disks around Evolving Intermediate-mass Stars
• The Sandwich Mode for Vertical Shear Instability in Protoplanetary Disks
• The growth and migration of massive planets under the influence of external photoevaporation
• Population study on MHD wind-driven disc evolution -- Confronting theory and observation
• Forbidden emission lines in protostellar outflows and jets with MUSE
• Dust entrainment in magnetically and thermally driven disk winds
• Stability of Polycyclic Aromatic Hydrocarbon Clusters in Protoplanetary Disks
• Electric heating and angular momentum transport in laminar models of protoplanetary disks
• Modeling JWST MIRI-MRS Observations of T Cha: Mid-IR Noble Gas Emission Tracing a Dense Disk Wind
• Dust entrainment in photoevaporative winds: Densities and imaging
• Combined Effects of Disk Winds and Turbulence-Driven Accretion on Planet Populations
• Migration jumps of planets in transition disks
• Modelling thermochemical processes in protoplanetary disks I: numerical methods
• The interplay between forming planets and photoevaporating discs II: Wind-driven gas redistribution
• Wind-MRI interactions in local models of protoplanetary discs: I. Ohmic resistivity
• Global Non-ideal Magnetohydrodynamic Simulations of Protoplanetary Disks with Outer Truncation