A multi-wavelength study of the debris disc around 49 Cet

Abstract

In a multi-wavelength study of thermal emission and scattered light images we analyse the dust properties and structure of the debris disc around the A1-type main sequence star 49~Cet. As a basis for this study, we present new scattered light images of the debris disc known to possess both a high amount of dust and gas. The outer region of the disc is revealed in former coronagraphic H-band and our new Y-band images from the Very Large Telescope SPHERE instrument. We use the knowledge of the disc's radial extent inferred from ALMA observations and the grain size distribution found by SED fitting to generate semi-dynamical dust models of the disc. We compare the models to scattered light and thermal emission data and find that a disc with a maximum of the surface density at 110~au and shallow edges can describe both thermal emission and scattered light observations. This suggests that grains close to the blow-out limit and large grains stem from the same planetesimal population and are mainly influenced by radiation pressure. The influence of inwards transport processes could not be analysed in this study.

Accepted by MNRAS

References in corpus (75)

• Gaia Data Release 2. Summary of the contents and survey properties
• The Wide-field Infrared Survey Explorer (WISE): Mission Description and Initial On-orbit Performance
• The Gaia mission
• Interstellar Dust Grains
• Estimating distances from parallaxes IV: Distances to 1.33 billion stars in Gaia Data Release 2
• Angular Differential Imaging: a Powerful High-Contrast Imaging Technique
• Photoevaporation of protoplanetary discs II: evolutionary models and observable properties
• Timescale of Mass Accretion in Pre-Main-Sequence Stars
• A planetary system as the origin of structure in Fomalhaut's dust belt
• How Observations of Circumstellar Disk Asymmetries Can Reveal Hidden Planets: Pericenter Glow and its Application to the HR 4796 Disk
• Debris Disks: Structure, Composition, and Variability
• Dust Migration and Morphology in Optically Thin Circumstellar Gas Disks
• Age dependence of the Vega Phenomenon: Theory
• Dust Dynamics, Surface Brightness Profiles, and Thermal Spectra of Debris Disks: The Case of AU Mic
• The Insignificance of P-R Drag in Detectable Extrasolar Planetesimal Belts
• Dynamical modeling of large scale asymmetries in the beta Pictoris dust disk
• Impact of angular differential imaging on circumstellar disk images
• Long-Term Collisional Evolution of Debris Disks
• Debris Disks: Seeing Dust, Thinking of Planetesimals and Planets
• A 40 Myr Old Gaseous Circumstellar Disk at 49 Ceti: Massive CO-Rich Comet Clouds at Young A-Type Stars
• Debris disc stirring by secular perturbations from giant planets
• Collisional processes and size distribution in spatially extended debris discs
• Predictions for the secondary CO, C and O gas content of debris discs from the destruction of volatile-rich planetesimals
• ALMA observations of the molecular gas in the debris disk of the 30 Myr old star HD 21997
• Young Nearby Loose Associations
• $\beta$ Pictoris' inner disk in polarized light and new orbital parameters for $\beta$ Pictoris b
• Astrometric and photometric accuracies in high contrast imaging: The SPHERE speckle calibration tool (SpeCal)
• SONS: The JCMT legacy survey of debris discs in the submillimetre
• Discovery of an 86 AU Radius Debris Ring Around HD 181327
• Disk Radii and Grain Sizes in Herschel-Resolved Debris Disks
• Outer edges of debris discs: how sharp is sharp?
• Modeling Collisional Cascades In Debris Disks: Steep Dust-Size Distributions
• Azimuthal asymmetries in the debris disk around HD61005
• beta Pic b position relative to the Debris Disk
• The dust grain size - stellar luminosity trend in debris discs
• The Nearby, Young, Argus Association: Membership, Age, and Dusty Debris Disks
• A Trend Between Cold Debris Disk Temperature and Stellar Type: Implications for the Formation and Evolution of Wide-Orbit Planets
• First images of debris disks around TWA 7, TWA 25, HD 35650, and HD 377
• Are debris disks self-stirred?
• A Primer on Unifying Debris Disk Morphologies
• Design, analysis and test of a microdots apodizer for the Apodized Pupil Lyot Coronagraph
• SPHERE IRDIS and IFS astrometric strategy and calibration
• Imaging Discovery of the Debris Disk Around HIP 79977
• Stirring in massive, young debris discs from spatially resolved Herschel images
• Radial Surface Density Profiles of Gas and Dust in the Debris Disk around 49 Ceti
• Herschel Observations of Gas and Dust in the Unusual 49 Ceti Debris Disk
• Modeling the HD32297 Debris Disk with Far-IR Herschel Data
• Stellar Membership and Dusty Debris Disks in the alpha Persei Cluster
• Constraints on Planetesimal Collision Models in Debris Disks
• LIDT-DD: A new self-consistent debris disc model including radiation pressure and coupling collisional and dynamical evolution
• Collisional modelling of the AU Microscopii debris disc
• Imaging [CI] around HD 131835: reinterpreting young debris discs with protoplanetary disc levels of CO gas as shielded secondary discs
• Multi-wavelength modeling of the spatially resolved debris disk of HD 107146
• The SHARDDS survey: first resolved image of the HD114082 debris disk in Lower Centaurus Crux with SPHERE
• High-Resolution Imaging of the Dust Disk around 49 Ceti
• First scattered-light images of the gas-rich debris disk around 49 Ceti
• Volatile-Rich Circumstellar Gas in the Unusual 49 Ceti Debris Disk
• The HIP 79977 debris disk in polarized light
• Warm exo-Zodi from cool exo-Kuiper belts: the significance of P-R drag and the inference of intervening planets
• A dearth of small particles in the transiting material around the white dwarf WD 1145+017
• Detection of submillimeter-wave [C I] emission in gaseous debris disks of 49 Ceti and Beta Pictoris
• Bringing "The Moth" to Light: A Planet-Sculpting Scenario for the HD 61005 Debris Disk
• Very deep images of the innermost regions of the beta Pictoris debris disc at Lp
• Mid-Infrared Imaging of Candidate Vega-Like Systems
• A dearth of small particles in debris disks: An energy-constrained smallest fragment size
• Investigating the presence of two belts in the HD 15115 system
• A Comprehensive Dust Model Applied to the Resolved Beta Pictoris Debris Disk from Optical to Radio Wavelengths
• Can gas in young debris disks be constrained by their radial brightness profiles?
• Collisions and drag in debris discs with eccentric parent belts
• UV Spectroscopy of Star-Grazing Comets within the 49 Ceti Debris Disk
• Models of the Eta Corvi debris disk from the Keck Interferometer, Spitzer and Herschel
• The SPHERE data center: a reference for high contrast imaging processing
• Three years of SPHERE: the latest view of the morphology and evolution of protoplanetary discs
• Dust production in debris discs: constraints on the smallest grains
• High resolution ALMA observation of the ${}^{12}$CO(3-2) and 350 GHz continuum emissions of the debris disc of 49 Ceti

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• Physical conditions of gas components in debris disks of 49 Ceti and HD 21997
• High resolution ALMA and HST imaging of $\kappa$CrB: a broad debris disc around a post-main sequence star with low-mass companions
• Characterization of debris disks observed with SPHERE