Probing the presence of planets in transition discs' cavities via warps: the case of TW Hya

Abstract

We are entering the era in which observations of protoplanetary discs properties can indirectly probe the presence of massive planets or low mass stellar companions interacting with the disc. In particular, the detection of warped discs can provide important clues to the properties of the star-disc system. In this paper we show how observations of warped discs can be used to infer the dynamical properties of the systems. We concentrate on circumbinary discs, where the mass of the secondary can be planetary. First, we provide some simple relations that link the amplitude of the warp in the linear regime to the parameters of the system. Secondly, we apply our method to the case of TW Hya, a transition disc for which a warp has been proposed based on spectroscopic observations. Assuming values for the disc and stellar parameters from observations, we conclude that, in order for a warp induced by a planetary companion to be detectable, the planet mass should be large ($M_{\mathrm{p}}\approx 10-14M_{\mathrm{J}}$) and the disc should be viscous ($\alpha \approx 0.15-0.25$). We also apply our model to LkCa 15 and T Cha, where a substellar companion has been detected within the central cavity of the transition discs.

arXiv comment12 pages, 4 figures, 2 tables. Accepted for publication in MNRAS

References in corpus (70)

• Validation of the new Hipparcos reduction
• A giant planet imaged in the disk of the young star Beta Pictoris
• A Major Asymmetric Dust Trap in a Transition Disk
• Evidence for a developing gap in a 10 Myr old protoplanetary disk
• Accretion disc viscosity: how big is alpha?
• Dynamics of Protoplanetary Disks
• Photoevaporation of Circumstellar Disks due to External FUV Radiation in Stellar Aggregates
• Dynamical Masses of T Tauri Stars and Calibration of PMS Evolution
• Ring shaped dust accumulation in transition disks
• An Old Disk That Can Still Form a Planetary System
• The locality of transport in self-gravitating accretion discs
• Investigating fragmentation conditions in self-gravitating accretion discs
• Chaotic star formation and the alignment of stellar rotation with disc and planetary orbital axes
• Evolution of protoplanetary disks: Constraints from DM Tauri and GM Aurigae
• A planet on an inclined orbit as an explanation of the warp in the Beta Pictoris disk
• Probing the structure of protoplanetary disks: a comparative study of DM Tau, LkCa 15 and MWC 480
• On the theory of disc photoevaporation
• LkCa 15: A Young Exoplanet Caught at Formation?
• On the Diversity of the Taurus Transitional Disks: UX Tau A & Lk Ca 15
• The TW Hya Disk at 870 microns: Comparison of CO and Dust Radial Structures
• A Parametric Modeling Approach to Measuring the Gas Masses of Circumstellar Disks
• Transitional and Pre-Transitional disks: Gap Opening by Multiple Planets?
• Characterising the Gravitational Instability in Cooling Accretion Discs
• Imaging the Disk around TW Hya with the Submillimeter Array
• HST/ACS Multiband Coronagraphic Imaging of the Debris Disk around Beta Pictoris
• Dynamical modeling of large scale asymmetries in the beta Pictoris dust disk
• STIS Coronagraphic Observations of Beta Pictoris
• Observational Implications of Precessing Protostellar Discs and Jets
• On the tilting of protostellar disks by resonant tidal effects
• Small vs large dust grains in transitional disks: do different cavity sizes indicate a planet?
• An Inner Hole in the Disk around TW Hydrae Resolved in 7 Millimeter Dust Emission
• Wave-like warp propagation in circumbinary discs I. Analytic theory and numerical simulations
• VLBA determination of the distance to nearby star-forming regions III. HP Tau/G2 and the three-dimensional structure of Taurus
• An azimuthal asymmetry in the LkHa 330 disk
• A companion candidate in the gap of the T Cha transitional disk
• Can grain growth explain transition disks?
• The evolution of a warped disc around a Kerr black hole
• Emission Lines from the Gas Disk around TW Hydra and the Origin of the Inner Hole
• On the age of the TW Hydrae Association and 2M1207334-393254
• The 0.5-2.22-micron Scattered Light Spectrum of the Disk Around TW Hya: Detection of a Partially Filled Disk Gap at 80 AU
• Highly inclined and eccentric massive planets I: Planet-disc interactions
• High spatial resolution mid-infrared observations of the low-mass young star TW Hya
• The Photoevaporative Wind from the Disk of TW Hya
• A Closer Look at the LkCa 15 Protoplanetary Disk
• Near-Infrared Spectroscopy of TW Hya: A Revised Spectral Type and Comparison with Magnetospheric Accretion Models
• Distance and Kinematics of the TW Hydrae Association from Parallaxes
• Kinematics of the CO Gas in the Inner Regions of the TW Hya Disk
• Mean-Field Magnetohydrodynamics of Accretion Disks
• Interaction between massive planets on inclined orbits and circumstellar discs
• Mapping the Shores of the Brown Dwarf Desert III: Young Moving Groups
• Fast Radial Flows in Transition Disk Holes
• Orbital evolution of a planet on an inclined orbit interacting with a disc
• Secular interactions between inclined planets and a gaseous disk
• Spatially Resolving the Inner Disk of TW Hya
• CARMA interferometric observations of 2MASS J044427+2512: the first spatially resolved observations of thermal emission of a brown dwarf disk
• On the nature of the transition disk around LkCa 15
• The final parsec problem: aligning a binary with an external accretion disc
• ALMA observations of rho-Oph 102: grain growth and molecular gas in the disk around a young Brown Dwarf
• Two timescale dispersal of magnetized protoplanetary disks
• Wave-like warp propagation in circumbinary discs II. Application to KH 15D
• Hydrodynamic Simulations of Propagating Warps and Bending Waves In Accretion Discs
• Early Dynamical Instabilities in the Giant Planet Systems
• Assembly of Protoplanetary Disks and Inclinations of Circumbinary Planets
• Sculpting the disk around T Cha: an interferometric view
• HST-STIS Spatially Resolved Spectroscopy and Coronagraphic Imaging of the TW Hydrae Circumstellar Disk
• Herschel Observations of the T Cha Transition Disk: Constraining the Outer Disk Properties
• Photoevaporation and spatial variation of grain sizes in Orion 114-426
• Accretion disc viscosity: what do warped discs tell us?
• The effects of disc warping on the inclination of planetary orbits
• New Spatially Resolved Mid-IR Observations of the Transitional Disk TW Hya and Tentative Evidence for a Self-Luminous Companion

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