Belt(s) of debris resolved around the Sco-Cen star HIP 67497

Abstract

In 2015, we initiated a survey of Scorpius-Centaurus A-F stars that are predicted to host warm-inner and cold-outer belts of debris similar to the case of the system HR~8799. The survey aims to resolve the disks and detect planets responsible for the disk morphology. In this paper, we study the F-type star HIP~67497 and present a first-order modelisation of the disk in order to derive its main properties. We used the near-infrared integral field spectrograph (IFS) and dual-band imager IRDIS of VLT/SPHERE to obtain angular-differential imaging observations of the circumstellar environnement of HIP~67497. We removed the stellar halo with PCA and TLOCI algorithms. We modeled the disk emission with the GRaTeR code. We resolve a ring-like structure that extends up to $\sim$450 mas ($\sim$50 au) from the star in the IRDIS and IFS data. It is best reproduced by models of a non-eccentric ring with an inclination of $80\pm 1^{\circ }$, a position angle of $-93\pm 1^{\circ }$, and a semi-major axis of $59\pm 3$ au. We also detect an additional, but fainter, arc-like structure with a larger extension (0.65 arcsec) South of the ring that we model as a second belt of debris at $\sim$130 au. We detect 10 candidate companions at separations $\ge$1''. We estimate the mass of putative perturbers responsible for the disk morphology and compare it to our detection limits. Additional data are needed to find those perturbers, and to relate our images to large-scale structures seen with HST/STIS.

arXiv comment6 pages, 10 figures, 4 tables. 3 appendixes. Accepted for publication in A&A

References in corpus (24)

• Validation of the new Hipparcos reduction
• Direct Imaging of Multiple Planets Orbiting the Star HR 8799
• Evolutionary models for cool brown dwarfs and extrasolar giant planets. The case of HD 20945
• A Hipparcos census of the nearby OB associations
• Images of a fourth planet orbiting HR 8799
• Detection and Characterization of Exoplanets and Disks using Projections on Karhunen-Loeve Eigenimages
• Post-T Tauri Stars in the Nearest OB Association
• Photometric characterization of exoplanets using angular and spectral differential imaging
• The Debris Disk Around HR 8799
• Probing for Exoplanets Hiding in Dusty Debris Disks: Disk Imaging, Characterization, and Exploration with HST/STIS Multi-Roll Coronagraphy
• Impact of angular differential imaging on circumstellar disk images
• Formation of sharp eccentric rings in debris disks with gas but without planets
• Confirmation of the planet around HD 95086 by direct imaging
• High-contrast imaging of Sirius~A with VLT/SPHERE: Looking for giant planets down to one astronomical unit
• Dependence of a planet's chaotic zone on particle eccentricity: the shape of debris disc inner edges
• A narrow, edge-on disk resolved around HD 106906 with SPHERE
• A Primer on Unifying Debris Disk Morphologies
• Planetary chaotic zone clearing: destinations and timescales
• Modeling Self-Subtraction in Angular Differential Imaging: Application to the HD 32297 Debris Disk
• Dynamical behaviour of multiplanet systems close to their stability limit
• A Multiplicity Census of Intermediate-Mass Stars in Scorpius-Centaurus
• The Peculiar Debris Disk of HD 111520 as Resolved by the Gemini Planet Imager
• Discovery of an Edge-on Debris Disk with a Dust Ring and an Outer Disk Wing-tilt Asymmetry
• Characterizing HR3549B using SPHERE

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