1.1k citations · 4.1k across the 32 of their papers we have counts for
32 papers
A Framework to Model Stellar Irradiated Disks with Frequency-dependent Absorption and Scattering Opacities in Athena++
Stanley A. Baronett, Yan-Fei Jiang, Zhaohuan Zhu +2
The frequency dependence of opacity is crucial for determining the thermal structure of protoplanetary disks, which in turn influences disk dynamics and planet formation. Yet many…
Shadow-Induced Warps in Protoplanetary disks
Shangjia Zhang, Zhaohuan Zhu, Callum W. Fairbairn
Shadows are commonly observed in protoplanetary disks in near-infrared and (sub)millimeter images, often cast by misaligned inner disks or other obscuring material. While recent st…
JWST/NIRCam Coronagraphic Search for Hidden Planets in the HD~163296 Protoplanetary Disk
Taichi Uyama, Luca Ricci, Marie Ygouf +10
HD~163296 is a Herbig Ae/Be star with multiple signposts of on-going planet formation on its disk, such as prominent rings and gaps, as well as kinematic features as identified by…
High Resolution ALMA Observations of Richly Structured Protoplanetary Disks in Orionis
Jane Huang, Megan Ansdell, Tilman Birnstiel +5
ALMA has detected substructures in numerous protoplanetary disks at radii from a few to over a hundred au. These substructures are commonly thought to be associated with planet for…
3D Radiation-Hydrodynamical Simulations of Shadows on Transition Disks
Shangjia Zhang, Zhaohuan Zhu
Shadows are often observed in transition disks, which can result from obscuring by materials closer to the star, such as a misaligned inner disk. While shadows leave apparent darke…
A Survey of Protoplanetary Disks Using the Keck/NIRC2 Vortex Coronagraph
Nicole L. Wallack, Jean-Baptiste Ruffio, Garreth Ruane +34
Recent Atacama Large Millimeter/submillimeter Array (ALMA) observations of protoplanetary disks in the millimeter continuum have shown a variety of radial gaps, cavities, and spira…
Thermal Structure Determines Kinematics: Vertical Shear Instability in Stellar Irradiated Protoplanetary Disks
Shangjia Zhang, Zhaohuan Zhu, Yan-Fei Jiang
Turbulence is crucial for protoplanetary disk dynamics, and Vertical Shear Instability (VSI) is a promising mechanism in outer disk regions to generate turbulence. We use Athena++…
Porous Dust Particles in Protoplanetary Disks: Application to the HL Tau Disk
Shangjia Zhang, Zhaohuan Zhu, Takahiro Ueda +4
Dust particle sizes constrained from dust continuum and polarization observations by radio interferometry are inconsistent by at least an order of magnitude. Motivated by porous du…
Substructures in Compact Disks of the Taurus Star-forming Region
Shangjia Zhang, Matt Kalscheur, Feng Long +5
Observations of substructure in protoplanetary disks have largely been limited to the brightest and largest disks, excluding the abundant population of compact disks which are like…
ALMA Detection of Dust Trapping around Lagrangian Points in the LkCa 15 Disk
Feng Long, Sean M. Andrews, Shangjia Zhang +10
We present deep high-resolution (50 mas, 8 au) ALMA 0.88 and 1.3 mm continuum observations of the LkCa 15 disk. The emission morphology shows an inner cavity and three dust r…
Investigating the Future Potential of an Upgraded ALMA to Image Planet Forming Disks at Sub-au Scales
Benjamin Burrill, Luca Ricci, Sarah Harter +2
In recent years, ALMA has been able to observe large-scale substructures within protoplanetary disks. Comparison with the predictions from models of planet-disk interaction has ind…
PGNets: Planet mass prediction using convolutional neural networks for radio continuum observations of protoplanetary disks
Shangjia Zhang, Zhaohuan Zhu, Mingon Kang
We developed Convolutional Neural Networks (CNNs) to rapidly and directly infer the planet mass from radio dust continuum images. Substructures induced by young planets in protopla…
Self-consistent ring model in protoplanetary disks: temperature dips and substructure formation
Shangjia Zhang, Xiao Hu, Zhaohuan Zhu +1
Rings and gaps are ubiquitous in protoplanetary disks. Larger dust grains will concentrate in gaseous rings more compactly due to stronger aerodynamic drag. However, the effects of…
Limits on Millimeter Continuum Emission from Circumplanetary Material in the DSHARP Disks
Sean M. Andrews, William Elder, Shangjia Zhang +10
We present a detailed analysis for a subset of the high resolution (~35 mas, or 5 au) ALMA observations from the Disk Substructures at High Angular Resolution Project (DSHARP) to s…
Impact of Differential Dust Settling on the SED and Polarization: Application to the Inner Region of the HL Tau Disk
Takahiro Ueda, Akimasa Kataoka, Shangjia Zhang +3
The polarimetric observations on the protoplanetary disk around HL Tau have shown the scattering-induced polarization at ALMA Band 7, which indicates that the maximum dust size is…
A search for companions via direct imaging in the DSHARP planet-forming disks
Sebastián Jorquera, Laura M. Pérez, Gaël Chauvin +10
The "Disk Substructures at High Angular Resolution Project" (DSHARP) has revealed an abundance and ubiquity of rings and gaps over a large sample of young planet-forming disks, whi…
Imaging the Dusty Substructures due to Terrestrial Planets in Planet-forming Disks with ALMA and the Next Generation Very Large Array
Sarah Harter, Luca Ricci, Shangjia Zhang +1
We present simulations of the capabilities of the Atacama Large Millimeter/submillimeter Array (ALMA) and of a Next Generation Very Large Array (ngVLA) to detect and resolve substr…
A multi-frequency ALMA characterization of substructures in the GM Aur protoplanetary disk
Jane Huang, Sean M. Andrews, Cornelis P. Dullemond +12
The protoplanetary disk around the T Tauri star GM Aur was one of the first hypothesized to be in the midst of being cleared out by a forming planet. As a result, GM Aur has had an…
The effects of disk self-gravity and radiative cooling on the formation of gaps and spirals by young planets
Shangjia Zhang, Zhaohuan Zhu
We have carried out two-dimensional hydrodynamical simulations to study the effects of disk self-gravity and radiative cooling on the formation of gaps and spirals. (1) With disk s…
One Solution to the Mass Budget Problem for Planet Formation: Optically Thick Disks with Dust Scattering
Zhaohuan Zhu, Shangjia Zhang, Yan-Fei Jiang +10
ALMA surveys have suggested that the dust in Class II disks may not be enough to explain the averaged solid mass in exoplanets, under the assumption that the mm disk continuum emis…
The Disk Substructures at High Angular Resolution Project (DSHARP): III. Spiral Structures in the Millimeter Continuum of the Elias 27, IM Lup, and WaOph 6 Disks
Jane Huang, Sean M. Andrews, Laura M. Pérez +13
We present an analysis of ALMA 1.25 millimeter continuum observations of spiral structures in three protoplanetary disks from the Disk Substructures at High Angular Resolution Proj…
The Disk Substructures at High Angular Resolution Project (DSHARP): IV. Characterizing substructures and interactions in disks around multiple star systems
Nicolás Kurtovic, Laura Pérez, Myriam Benisty +11
To characterize the substructures induced in protoplanetary disks by the interaction between stars in multiple systems, we study the mm continuum and the CO…
The Disk Substructures at High Angular Resolution Project (DSHARP): X. Multiple rings, a misaligned inner disk, and a bright arc in the disk around the T Tauri star HD 143006
Laura M. Pérez, Myriam Benisty, Sean M. Andrews +14
We present a detailed analysis of new ALMA observations of the disk around the T-Tauri star HD 143006, which at 46 mas (7.6 au) resolution reveal new substructures in the 1.25 mm c…
The Disk Substructures at High Angular Resolution Project (DSHARP) - IX. A high definition study of the HD 163296 planet forming disk
Andrea Isella, Jane Huang, Sean M. Andrews +11
ALMA observations of protoplanetary disks acquired by the Disk Substructure at High Angular Resolution Project (DSHARP) resolve the dust and gas emission on angular scales as small…