36 citations · 96 across the 10 of their papers we have counts for
11 papers
Cooling-regulated gas accretion onto gap-opening planets
Ayumu Kuwahara, Michiel Lambrechts, Minghao Zhang +2
Gas accretion onto forming planets controls the final masses of giant planets and provides observable signatures of ongoing formation. How this process depends on the cooling prope…
Dust transport in envelopes of disk-embedded planets: II. Fully convective envelopes
Ayumu Kuwahara, Michiel Lambrechts
We perform 3D multifluid simulations of gas and dust to quantify how convection reshapes the spatial distribution of dust grains inside the envelopes of disk-embedded planets. Buil…
Dust transport in envelopes of disk-embedded planets: I. Convectively stable envelopes
Ayumu Kuwahara, Michiel Lambrechts
Planets embedded in protoplanetary disks accrete solids through their gaseous envelopes. The spatial distribution of these dust particles inside the envelopes of disk-embedded plan…
Interior dynamics of envelopes around disk-embedded planets
Ayumu Kuwahara, Michiel Lambrechts
In the core accretion scenario, forming planets start to acquire gaseous envelopes while accreting solids. Conventional one-dimensional models assume envelopes to be static and iso…
Dust ring and gap formation by gas flow induced by low-mass planets embedded in protoplanetary disks . Time-dependent model
Ayumu Kuwahara, Michiel Lambrechts, Hiroyuki Kurokawa +2
The observed dust rings and gaps in protoplanetary disks could be imprints of forming planets. Even low-mass planets in the one-to-ten Earth-mass regime, that do not yet carve deep…
Analytic description of the gas flow around planets embedded in protoplanetary disks
Ayumu Kuwahara, Hiroyuki Kurokawa
A growing planet embedded in a protoplanetary disk induces three-dimensional gas flow, which exhibits a midplane outflow that can suppress dust accretion onto the planet and form g…
Spin of protoplanets generated by pebble accretion: Influences of protoplanet-induced gas flow
Kohsuke Takaoka, Ayumu Kuwahara, Shigeru Ida +1
We investigate the spin state of a protoplanet during the pebble accretion influenced by the gas flow in the gravitational potential of the protoplanet and how it depends on the pl…
Dust ring and gap formation by gas flow induced by low-mass planets embedded in protoplanetary disks . Steady-state model
Ayumu Kuwahara, Hiroyuki Kurokawa, Takayuki Tanigawa +1
Recent high-spatial-resolution observations have revealed dust substructures in protoplanetary disks such as rings and gaps, which do not always correlate with gas. Because radial…
Influences of protoplanet-induced three-dimensional gas flow on pebble accretion . Headwind regime
Ayumu Kuwahara, Hiroyuki Kurokawa
Pebble accretion is one of the major theories in planet formation. Aerodynamically small particles, called pebbles, are highly affected by the gas flow. A growing planet embedded i…
Influences of three-dimensional gas flow induced by protoplanets on pebble accretion --. shear regime
Ayumu Kuwahara, Hiroyuki Kurokawa
The pebble accretion model has the potential to explain the formation of various types of planets. A growing planet embedded in a disk induces three-dimensional (3D) gas flow, whic…
Gas flow around a planet embedded in a protoplanetary disc: the dependence on the planetary mass
Ayumu Kuwahara, Hiroyuki Kurokawa, Shigeru Ida
The three-dimensional structure of the gas flow around a planet is thought to influence the accretion of both gas and solid materials. In particular, the outflow in the mid-plane r…