870 micron Imaging of a Transitional Disk in Upper Scorpius: Holdover from the Era of Giant Planet Formation?

Abstract

We present 880 micron images of the transition disk around the star [PZ99] J160421.7-213028, a solar-mass star in the nearby Upper Scorpius association. With a resolution down to 0.34 arcsec, we resolve the inner hole in this disk, and via model fitting to the visibilities and spectral energy distribution we determine both the structure of the outer region and the presence of sparse dust within the cavity. The disk contains about 0.1 Jupiter masses of mm-emitting grains, with an inner disk edge of about 70 AU. The inner cavity contains a small amount of dust with a depleted surface density in a region extending from about 20-70 AU. Taking into account prior observations indicating little to no stellar accretion, the lack of a binary companion, and the presence of dust near 0.1 AU, we determine that the most likely mechanism for the formation of this inner hole is the presence of one or more giant planets.

12 pages, 7 figures. To appear in the Astrophysical Journal

References in corpus (2)

• Mapping the Shores of the Brown Dwarf Desert I.: Upper Scorpius
• An Inner Hole in the Disk around TW Hydrae Resolved in 7 Millimeter Dust Emission

Cited by in corpus (59)

• ALMA Survey of Lupus Protoplanetary Disks I: Dust and Gas Masses
• Observations of gas flows inside a protoplanetary gap
• Survival of molecular gas in cavities of transition disks (I. CO)
• Two-Component Secular Gravitational Instability in a Protoplanetary Disk: A Possible Mechanism for Creating Ring-Like Structures
• Gas density drops inside dust cavities of transitional disks around young stars observed with ALMA
• Polarimetric Imaging of Large Cavity Structures in the Pre-transitional Protoplanetary Disk around PDS 70: Observations of the disk
• Local Enhancement of Surface Density in the Protoplanetary Ring Surrounding HD 142527
• New insights into the nature of transition disks from a complete disk survey of the Lupus star forming region
• Subaru Imaging of Asymmetric Features in a Transitional Disk in Upper Scorpius
• Five steps in the evolution from protoplanetary to debris disk
• An Origin of Multiple Ring Structure and Hidden Planets in HL Tau: A Unified Picture by Secular Gravitational Instability
• Consistent dust and gas models for protoplanetary disks III. Models for selected objects from the FP7 DIANA project
• Near-Infrared Imaging Polarimetry of HD142527
• Two populations of transition discs?
• The Structure of Pre-transitional Protoplanetary Disks. II. Azimuthal Asymmetries, Different Radial Distributions of Large and Small Dust Grains in PDS~70
• The (w)hole survey: an unbiased sample study of transition disk candidates based on Spitzer catalogs
• Comparison of the dust and gas radial structure in the transition disk [PZ99] J160421.7-213028
• Reference star differential imaging of close-in companions and circumstellar disks with the NIRC2 vortex coronagraph at W.M. Keck Observatory
• An ALMA Continuum Survey of Circumstellar Disks in the Upper Scorpius OB Association
• Variable Outer Disk Shadowing Around the Dipper Star RX J1604.3-2130
• Are Inner Disc Misalignments Common? ALMA Reveals an Isotropic Outer Disc Inclination Distribution for Young Dipper Stars
• Millimetre spectral indices of transition disks and their relation to the cavity radius
• The Sizes and Depletions of the Dust and Gas Cavities in the Transitional Disk J160421.7-213028
• The Structure of Pre-transitional Protoplanetary Disks I: Radiative Transfer Modeling of the Disk+Cavity in the PDS 70 system
• The SEEDS High Contrast Imaging Survey of Exoplanets around Young Stellar Objects
• The Herschel DIGIT Survey of Weak-line T Tauri Stars: implications for disk evolution and dissipation
• Variability and dust filtration in the transition disk J160421.7-213028 observed in optical scattered light
• Gaps in Protoplanetary Disks as Signatures of Planets: II. Inclined Disks
• Dipper disks not inclined towards edge-on orbits
• Characterising thermal sweeping: a rapid disc dispersal mechanism
• Resolving structure of the disk around HD100546 at 7 mm with ATCA
• Spiral patterns in planetesimal circumbinary disks
• ALMA Reveals a Misaligned Inner Gas Disk inside the Large Cavity of a Transitional Disk
• The Taurus Boundary of Stellar/Substellar (TBOSS) Survey II. Disk Masses from ALMA Continuum Observations
• Structure Formation in a Young Protoplanetary Disk by a Magnetic Disk Wind
• Star-disc (mis-)alignment in Rho Oph and Upper Sco: insights from spatially resolved disc systems with K2 rotation periods
• Surface Geometry of Protoplanetary Disks Inferred From Near-Infrared Imaging Polarimetry
• Gas inside the 97 au cavity around the transition disk Sz\,91
• An ALMA survey of $\lambda$ Orionis disks: from supernovae to planet formation
• A Herschel PACS survey of the dust and gas in Upper Scorpius disks
• A SCUBA-2 850 micron survey of protoplanetary discs in the sigma Orionis cluster
• High-Resolution Submillimeter and Near-Infrared Studies of the Transition Disk around Sz 91
• Consistent dust and gas models for protoplanetary disks IV. A panchromatic view of protoplanetary disks
• GW Ori: Inner disk readjustments in a triple system
• A gas density drop in the inner 6 AU of the transition disk around the Herbig Ae star HD 139614: Further evidence for a giant planet inside the disk?
• Sparse Aperture Masking Observations of the FL Cha Pre-transitional Disk
• Vortex stretching in self-gravitating protoplanetary discs
• Identification of Young Stellar Variables with KELT for K2 II: The Upper Scorpius Association
• Chemical signatures of a warped protoplanetary disc
• Interpreting Brightness Asymmetries in Transition Disks: Vortex at Dead Zone or Planet Carved Gap Edges?
• A SCUBA-2 850 micron Survey of Protoplanetary Discs in the IC 348 Cluster
• A Resolved Near-Infrared Image of The Inner Cavity in The GM Aur Transitional Disk
• Extreme Pebble Accretion in Ringed Protoplanetary Discs
• On the vortex evolution in non-isothermal protoplanetary discs
• Quantitative polarimetry for the transition disk in RX J1604.3-213010
• Search for Stellar Flybys in the Sco-Cen OB Association with the Gaia DR2
• SPH simulations of structures in protoplanetary disks
• Planetary nurseries: vortices formed at smooth viscosity transition
• Constraining the mass of the planet(s) sculpting a disk cavity. The intriguing case of 2MASS J16042165-2130284