48 citations · 180 across the 12 of their papers we have counts for
12 papers
Modeling the Contact Surfaces Formed by Pebble Collisions: Application to Formation of Comet 67P/Churyumov--Gerasimenko
Misako Tatsuuma, Satoshi Okuzumi, Akimasa Kataoka +1
Modeling the contact surfaces formed by pebble collisions is crucial to understanding the formation process of comets, which are thought to be composed of pebbles. In this paper, w…
Investigating the Bouncing Barrier with Collision Simulations of Compressed Dust Aggregates
Haruto Oshiro, Misako Tatsuuma, Satoshi Okuzumi +1
The collision outcomes of dust aggregates in protoplanetary disks dictate how planetesimals form. Experimental and numerical studies have suggested that bouncing collisions occurri…
On the elastoplastic behavior in collisional compression of spherical dust aggregates
Sota Arakawa, Hidekazu Tanaka, Eiichiro Kokubo +4
Aggregates consisting of submicron-sized cohesive dust grains are ubiquitous, and understanding the collisional behavior of dust aggregates is essential. It is known that low-speed…
The Bulk Densities of Small Solar System Bodies as a Probe of Planetesimal Formation
Misako Tatsuuma, Akimasa Kataoka, Hidekazu Tanaka +1
Constraining the formation processes of small solar system bodies is crucial for gaining insights into planetesimal formation. Their bulk densities, determined by their compressive…
Interparticle normal force in highly porous granular matter during compression
Sota Arakawa, Misako Tatsuuma, Hidekazu Tanaka +2
We perform a numerical simulation of compression of a highly porous dust aggregate of monodisperse spheres. We find that the average interparticle normal force within the aggregate…
Formulating Compressive Strength of Dust Aggregates from Low to High Volume Filling Factors with Numerical Simulations
Misako Tatsuuma, Akimasa Kataoka, Satoshi Okuzumi +1
Compressive strength is a key to understanding the internal structure of dust aggregates in protoplanetary disks and their resultant bodies, such as comets and asteroids in the Sol…
Size Dependence of the Bouncing Barrier in Protoplanetary Dust Growth
Sota Arakawa, Satoshi Okuzumi, Misako Tatsuuma +5
Understanding the collisional behavior of dust aggregates is essential in the context of planet formation. It is known that low-velocity collisions of dust aggregates result in bou…
Rotational Disruption of Porous Dust Aggregates due to Gas Flow in Protoplanetary Disks
Misako Tatsuuma, Akimasa Kataoka
We introduce a possible disruption mechanism of dust grains in planet formation by their spinning motion. This mechanism has been discussed as rotational disruption for the interst…
Tensile Strength of Porous Dust Aggregates
Misako Tatsuuma, Akimasa Kataoka, Hidekazu Tanaka
Comets are thought to have information about the formation process of our solar system. Recently, detailed information about comet 67P/Churyumov-Gerasimenko has been found by a spa…
Thermal conductivity and coordination number of compressed dust aggregates
Sota Arakawa, Misako Tatsuuma, Naoya Sakatani +1
Understanding the heat transfer mechanism within dust aggregates is of great importance for many subjects in planetary science. We calculated the coordination number and the therma…
Gravitational instability of a dust layer composed of porous silicate dust aggregates in a protoplanetary disk
Misako Tatsuuma, Shugo Michikoshi, Eiichiro Kokubo
Planetesimal formation is one of the most important unsolved problems in planet formation theory. In particular, rocky planetesimal formation is difficult because silicate dust gra…
The K2-ESPRINT Project III: A Close-in Super-Earth around a Metal-rich Mid-M Dwarf
Teruyuki Hirano, Akihiko Fukui, Andrew W. Mann +18
We validate a planet on a close-in orbit ( days) around K2-28 (EPIC 206318379), a metal-rich M4-type dwarf in the Campaign 3 fiel…