218 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Tokyo Institute of TechnologyJP129 papers
- The University of TokyoJP34 papers
- National Astronomical Observatory of JapanJP24 papers
- Japan Aerospace Exploration AgencyJP11 papers
- Centre National de la Recherche ScientifiqueFR10 papers
- RIKEN Center for Computational ScienceJP10 papers
- Institute of Space and Astronautical ScienceJP8 papers
- Life Science InstituteJP8 papers
- California Institute of TechnologyUS7 papers
- Hungarian Academy of SciencesHU7 papers
- Kyoto UniversityJP7 papers
- Nagoya UniversityJP7 papers
19 papers · 1 filter
Effects of Dynamical Evolution of Giant Planets on the Delivery of Atmophile Elements During Terrestrial Planet Formation
Soko Matsumura, Ramon Brasser, Shigeru Ida
Recent observations started revealing the compositions of protostellar discs and planets beyond the Solar System. In this paper, we explore how the compositions of terrestrial plan…
Temporary Capture of Asteroids by a Planet: Dependence of Prograde/Retrograde Capture on Asteroids' Semimajor Axes
Arika Higuchi, Shigeru Ida
We have investigated the dependence of the prograde/retrograde temporary capture of asteroids by a planet on their original heliocentric semimajor axes through analytical arguments…
ALMA Observations of a Gap and a Ring in the Protoplanetary Disk around TW Hya
Hideko Nomura, Takashi Tsukagoshi, Ryohei Kawabe +8
We report the first detection of a gap and a ring in 336 GHz dust continuum emission from the protoplanetary disk around TW Hya, using the Atacama Large Millimeter/Submillimeter Ar…
Interactive Evolution of Multiple Water-Ice Reservoirs on Mars: Insights from Hydrogen Isotope Compositions
Hiroyuki Kurokawa, Tomohiro Usui, Masahiko Sato
Remote sensing data from orbiter missions have proposed that ground ice may currently exist on Mars, although the volume is still uncertain. Recent analyses of Martian meteorites h…
On the Radius Anomaly of Hot Jupiters: Reexamination of the Possibility and Impact of Layered Convection
Hiroyuki Kurokawa, Shu-ichiro Inutsuka
Observations have revealed that a significant number of hot Jupiters have anomalously large radii. Layered convection induced by compositional inhomogeneity has been proposed to ac…
A semi-analytical model for exploring Galilean satellites formation from a massive disk
Yamila Miguel, Shigeru Ida
A better knowledge of Jovian satellites' origins will bring light on the environment that surrounded Jupiter during its formation and can help us to understand the characteristics…
Excavation and Melting of the Hadean Continental Crust by Late Heavy Bombardment
Yuhito Shibaike, Takanori Sasaki, Shigeru Ida
No Hadean rocks have ever been found on Earth's surface except for zircons---evidence of continental crust, suggesting that Hadean continental crust existed but later disappeared.…
Short-term dynamical evolution of grand-design spirals in barred galaxies
Junichi Baba
We investigate the short-term dynamical evolution of stellar grand-design spiral arms in barred spiral galaxies using a three-dimensional (3D) -body/hydrodynamic simulation. Sim…
Enrichment of r-process elements in dwarf spheroidal galaxies in chemo-dynamical evolution model
Yutaka Hirai, Yuhri Ishimaru, Takayuki R. Saitoh +3
The rapid neutron-capture process (r-process) is a major process to synthesize elements heavier than iron, but the astrophysical site(s) of r-process is not identified yet. Neutron…
Redshift evolution of stellar mass versus gas fraction relation in 0<z<2 regime: observational constraint for galaxy formation models
Kana Morokuma-Matsui, Junichi Baba
We investigate the redshift evolution of the molecular gas mass fraction (f_mol=M_mol/(M_star+M_mol), where M_mol is molecular gas mass and M_star is stellar mass) of galaxies in t…
Tilting Saturn without tilting Jupiter: Constraints on giant planet migration
R. Brasser, Man Hoi Lee
The migration and encounter histories of the giant planets in our Solar System can be constrained by the obliquities of Jupiter and Saturn. We have performed secular simulations wi…
Rapid Water Loss can Extend the Lifetime of the Planetary Habitability
T. Kodama, H. Genda, Y. Abe +1
Two habitable planetary states are proposed: an aqua planet like the Earth and a land planet that has a small amount of water. Land planets keep liquid water under larger solar rad…
Single-photon decision maker
Makoto Naruse, Martin Berthel, Aurelien Drezet +4
Decision making is critical in our daily lives and for society in general and is finding evermore practical applications in information and communication technologies. Herein, we d…
Resolution Dependence of Disruptive Collisions between Planetesimals in the Gravity Regime
H. Genda, T. Fujita, H. Kobayashi +2
Collisions are a fundamental process in planet formation. If colliding objects simply merge, a planetary object can grow. However, if the collision is disruptive, planetary growth…
Post-stishovite transition in hydrous aluminous SiO2
Koichiro Umemoto, Katsuyuki Kawamura, Kei Hirose +1
Lakshtanov et al. (2007) showed that incorporation of aluminum and some water into SiO2 significantly reduces the post-stishovite transition pressure in SiO2. This discovery sugges…
Warm Debris Disks Produced by Giant Impacts During Terrestrial Planet Formation
H. Genda, H. Kobayashi, E. Kokubo
In our solar system, Mars-sized protoplanets frequently collided with each other during the last stage of terrestrial planet formation called the giant impact stage. Giant impacts…
Eccentricity Evolution Through Accretion of Protoplanets
Yuji Matsumoto, Makiko Nagasawa, Shigeru Ida
Most of super-Earths detected by the radial velocity (RV) method have significantly smaller eccentricities than the eccentricities corresponding to velocity dispersion equal to the…
On the universal structure of human lexical semantics
Hyejin Youn, Logan Sutton, Eric Smith +5
How universal is human conceptual structure? The way concepts are organized in the human brain may reflect distinct features of cultural, historical, and environmental background i…
Transferable measurements of Heredity in models of the Origins of Life
Nicholas Guttenberg, Matthieu Laneuville, Melissa Ilardo +1
We propose a metric which can be used to compute the amount of heritable variation enabled by a given dynamical system. A distribution of selection pressures is used such that each…