31 citations · 44 across the 13 of their papers we have counts for
16 papers
Multi-wavelength Polarization as a Probe of Planet Formation
Ian Stephens, Sarah Sadavoy, Akimasa Kataoka +11
Polarization reveals details of circumstellar disks that are not readily available from total intensity observations. Via multi-wavelength polarimetric observations of disks, we ca…
Dust characterization of the HD 163296 disk with high-resolution multi-wavelength ALMA observations
Kiyoaki Doi, Myriam Benisty, Akimasa Kataoka +10
Context. Planets form through the growth and accumulation of dust grains in protoplanetary disks. Characterizing dust properties such as size, surface density, and temperature is k…
Empirical Constraints on the CO Snowline Transition in HD 163296: The Local CO Column and CO Optical Depth
Chunhua Qi, Takahiro Ueda, David J. Wilner +1
CO isotopologue emission is widely used to infer gas masses and volatile carbon abundances in protoplanetary disks, but converting line emission into a CO column depends on optical…
Interpreting ALMA Multiwavelength Continuum Observations of PDS 70 c: An Optically Thick Dust Ring in the Circumplanetary Disk
Yuhito Shibaike, Satoshi Okuzumi, Takahiro Ueda +2
Giant planets form small gas disks, called circumplanetary disks (CPDs), during gas accretion. The CPD of PDS 70 c has been detected by the Atacama Large Millimeter/submillimeter A…
Substructures in Planet-Forming Disks with the SKAO
Yinhao Wu, Jessica Speedie, Sebastián Pérez +33
Disks of gas and dust orbiting young stars are the arenas and material reservoirs for planet formation. Over the past decade, multiwavelength observations, from infrared to radio,…
Thermal instability and rocky planetesimal formation in the inner regions of protoplanetary disks
Ryo Kato, Takahiro Ueda, Satoshi Okuzumi
The inner regions of protoplanetary disks are promising formation sites of rocky planetesimals. Theoretical studies have proposed that dust trapping at the magnetorotational instab…
Multi-wavelength ALMA Imaging of HD 34282: Dust-trapping Signatures of a Vortex Candidate
Xiaoyi Ma, Fangyuan Yu, Ruobing Dong +8
Azimuthal arcs in millimeter continuum emission from protoplanetary disks are often attributed to dust-trapping vortices, but definitive observational confirmation of vortices rema…
Grain growth in protoplanetary disks in the Upper Scorpius revealed by millimeter-wave spectral indices
Tau Bito, Akimasa Kataoka, Takahiro Ueda +3
The measurement of dust size from millimeter-wavelength spectra provides direct constraints on grain growth in protoplanetary disks. The spectral indices between 0.88 mm and 2.9 mm…
Multi dust species inner rim in magnetized protoplanetary disks
Mario Flock, Ondřej Chrenko, Takahiro Ueda +3
The inner regions of protoplanetary disks, within ten astronomical units, are where terrestrial planets are born. By developing a new class of multi-dust radiative magnetized inner…
Predictions of dust continuum observations of circumplanetary disks with ngVLA: A case study of PDS 70 c
Yuhito Shibaike, Takahiro Ueda, Misato Fukagawa
A gas giant forms a small gas disk called a "circumplanetary disk (CPD)" around the planet during its gas accretion process. The small gas disk contains dust particles like those i…
Multi-Wavelength Dust Characterization of the HL Tau Disk and Implications for Planet Formation
Takahiro Ueda, Sean M. Andrews, Carlos Carrasco-González +4
We present a comprehensive analysis of the HL Tau dust disk by modeling its intensity profiles across six wavelengths (0.45 to 7.9 mm) with a resolution of 0.05 arcsec ( au)…
Detailed Microwave Continuum Spectra from Bright Protoplanetary Disks in Taurus
Caleb Painter, Sean M. Andrews, Claire J. Chandler +9
We present new observations that densely sample the microwave (4-360 GHz) continuum spectra from eight young systems in the Taurus region. Multi-component, empirical model prescrip…
SMA and NOEMA reveal asymmetric sub-structure in the protoplanetary disk of IRAS23077+6707
Joshua B. Lovell, Leon Trapman, Kristina Monsch +5
We present high-resolution data of IRAS 23077+6707 (`Dracula's Chivito') with the Submillimeter Array (SMA at 1.33 mm/225.5 GHz) and the Northern Extended Millimeter Array (NOEMA a…
Thermally driven spontaneous dust accumulation in the inner regions of protoplanetary disks
Ryo Kato, Takahiro Ueda, Satoshi Okuzumi
In protoplanetary disks, the formation of planetesimals via streaming and/or gravitational instabilities requires regions with a locally enhanced dust-to-gas mass ratio. Convention…
Support for fragile porous dust in a gravitationally self-regulated disk around IM Lup
Takahiro Ueda, Ryo Tazaki, Satoshi Okuzumi +2
Protoplanetary disks, the birthplace of planets, are expected to be gravitationally unstable in their early phase of evolution. IM Lup, a well-known T-Tauri star, is surrounded by…
The inner disk rim of HD 163296: linking radiative hydrostatic models with infrared interferometry
Ondřej Chrenko, Mario Flock, Takahiro Ueda +3
Previous studies of the protoplanetary disk HD 163296 revealed that the morphology of its sub-au infrared emission encompasses the terminal sublimation front of dust grains, referr…