Testing giant planet formation in the transitional disk of SAO 206462 using deep VLT/SPHERE imaging

Abstract

Context. The SAO 206462 (HD 135344B) disk is one of the few known transitional disks showing asymmetric features in scattered light and thermal emission. Near-infrared scattered-light images revealed two bright outer spiral arms and an inner cavity depleted in dust. Giant protoplanets have been proposed to account for the disk morphology. Aims. We aim to search for giant planets responsible for the disk features and, in the case of non-detection, to constrain recent planet predictions using the data detection limits. Methods. We obtained new high-contrast and high-resolution total intensity images of the target spanning the Y to the K bands (0.95-2.3 mic) using the VLT/SPHERE near-infrared camera and integral field spectrometer. Results. The spiral arms and the outer cavity edge are revealed at high resolutions and sensitivities without the need for image post-processing techniques, which introduce photometric biases. We do not detect any close-in companions. For the derivation of the detection limits on putative giant planets embedded in the disk, we show that the knowledge of the disk aspect ratio and viscosity is critical for the estimation of the attenuation of a planet signal by the protoplanetary dust because of the gaps that these putative planets may open. Given assumptions on these parameters, the mass limits can vary from ~2-5 to ~4-7 Jupiter masses at separations beyond the disk spiral arms. The SPHERE detection limits are more stringent than those derived from archival NaCo/L' data and provide new constraints on a few recent predictions of massive planets (4-15 MJ) based on the spiral density wave theory. The SPHERE and ALMA data do not favor the hypotheses on massive giant planets in the outer disk (beyond 0.6). There could still be low-mass planets in the outer disk and/or planets inside the cavity.

arXiv commentA&A, in press. 16 pages, 17 figures. Updated to match proofs

References in corpus (69)

• Gaia Data Release 1. Summary of the astrometric, photometric, and survey properties
• Evolutionary models for cool brown dwarfs and extrasolar giant planets. The case of HD 20945
• New evolutionary models for pre-main sequence and main sequence low-mass stars down to the hydrogen-burning limit
• Angular Differential Imaging: a Powerful High-Contrast Imaging Technique
• Images of a fourth planet orbiting HR 8799
• Models of Stars, Brown Dwarfs and Exoplanets
• Detection and Characterization of Exoplanets and Disks using Projections on Karhunen-Loeve Eigenimages
• Dust coagulation in protoplanetary disks: a rapid depletion of small grains
• Resolved Images of Large Cavities in Protoplanetary Transition Disks
• On the width and shape of gaps in protoplanetary disks
• On the Luminosity of Young Jupiters
• A new algorithm for point spread function subtraction in high-contrast imaging: a demonstration with angular differential imaging
• Ring shaped dust accumulation in transition disks
• Discovery of Small-Scale Spiral Structures in the Disk of SAO 206462 (HD 135344B): Implications for the Physical State of the Disk from Spiral Density Wave Theory
• Consistent dust and gas models for protoplanetary disks. I. Disk shape, dust settling, opacities, and PAHs
• Fundamental limitations of high contrast imaging set by small sample statistics
• Spectral and Photometric Diagnostics of Giant Planet Formation Scenarios
• PynPoint: An Image Processing Package for Finding Exoplanets
• Characterization of exoplanets from their formation I: Models of combined planet formation and evolution
• Photometric characterization of exoplanets using angular and spectral differential imaging
• Accretion Rates in Herbig Ae stars
• Spectro-astrometric imaging of molecular gas within protoplanetary disk gaps
• Large-Scale Asymmetries in the Transitional Disks of SAO 206462 and SR 21
• Resolved gas cavities in transitional disks inferred from CO isotopologues with ALMA
• Apodized Pupil Lyot Coronagraphs for Arbitrary Telescope Apertures
• Observational Signatures of Planets in Protoplanetary Disks II: Spiral Arms Observed in Scattered Light Imaging Can be Induced by Planets
• How Empty are Disk Gaps Opened by Giant Planets?
• CO emission from discs around isolated HAeBe and Vega-excess stars
• Transitional Disks as Signposts of Young, Multiplanet Systems
• LkH$\alpha$ 330: Evidence for dust clearing through resolved submillimeter imaging
• Evidence for dust clearing through resolved submillimeter imaging
• The Structure of Spiral Shocks Excited by Planetary-mass Companions
• A young protoplanet candidate embedded in the circumstellar disk of HD100546
• Polarimetry with the Gemini Planet Imager: Methods, Performance at First Light, and the Circumstellar Ring around HR 4796A
• Shadows cast on the transition disk of HD 135344B. Multiwavelength VLT/SPHERE polarimetric differential imaging
• Small vs large dust grains in transitional disks: do different cavity sizes indicate a planet?
• Discovery of a Companion Candidate in the HD169142 Transition Disk and the Possibility of Multiple Planet Formation
• Performance of the VLT Planet Finder SPHERE II. Data analysis and Results for IFS in laboratory
• Resolving the HD 100546 Protoplanetary System with the Gemini Planet Imager: Evidence for Multiple Forming, Accreting Planets
• Mass constraint for a planet in a protoplanetary disk from the gap width
• Inside-Out Evacuation of Transitional Protoplanetary Disks by the Magneto-Rotational Instability
• Identifying gaps in flaring Herbig Ae/Be disks using spatially resolved mid-infrared imaging. Are all group I disks transitional?
• Multiwavelength optical properties of compact dust aggregates in protoplanetary disks
• First light of the VLT planet finder SPHERE. II. The physical properties and the architecture of the young systems PZ Tel and HD 1160 revisited
• Near-infrared scattered light properties of the HR4796A dust ring: a measured scattering phase function from 13.6deg to 166.6deg
• An Enigmatic Pointlike Feature within the HD 169142 Transitional Disk
• First light of the VLT planet finder SPHERE. I. Detection and characterization of the sub-stellar companion GJ 758 B
• Inferring Planet Mass from Spiral Structures in Protoplanetary Disks
• The structure of disks around intermediate-mass young stars from mid-infrared interferometry. Evidence for a population of group II disks with gaps
• The structure of the protoplanetary disk surrounding three young intermediate mass stars. II. Spatially resolved dust and gas distribution
• Scattered light images of spiral arms in marginally gravitationally unstable discs with an embedded planet
• On the gap-opening criterion of migrating planets in protoplanetary disks
• SPHERE IRDIS and IFS astrometric strategy and calibration
• Testing particle trapping in transition disks with ALMA
• How Bright are Planet-Induced Spiral Arms in Scattered Light?
• Vortices and spirals in the HD135344B transition disk
• BIGRE: a low cross-talk integral field unit tailored for extrasolar planets imaging spectroscopy
• HD 135344B: a young star has reached its rotational limit
• Planetary Signatures in the SAO 206462 (HD 135344B) Disk: A Spiral Arm Passing Through Vortex?
• Constraining the structure of the transition disk HD 135344B (SAO 206462) by simultaneous modeling of multiwavelength gas and dust observations
• GPI PSF subtraction with TLOCI: the next evolution in exoplanet/disk high-contrast imaging
• Millimeter Observations of the Transition Disk around HD135344B (SAO 206462)
• Improving Signal to Noise in the Direct Imaging of Exoplanets and Circumstellar Disks
• Prototyping coronagraphs for exoplanet characterization with SPHERE
• Mid-InfraRed imaging of the circumstellar dust around three Herbig Ae stars : HD135344, CQTau, HD163296
• Flaring and self-shadowed disks around Herbig Ae stars: simulations for 10 micron interferometers
• Resolving the inner regions of the HD97048 circumstellar disk with VLT/NACO polarimetric differential imaging
• Characterizing HR3549B using SPHERE
• Ruling out unresolved binaries in five transitional disks VLT/NACO: deep 2.12 and 1.75 μm narrow-band imaging

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• A search for companions via direct imaging in the DSHARP planet-forming disks
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• Improving Planet Detection with Disk Modeling: Keck/NIRC2 Imaging of the HD 34282 Single-armed Protoplanetary Disk
• Reference-less algorithm for circumstellar disks imaging
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