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
90 papers · 1 filter
Oxygen isotope fractionation in the Martian atmosphere induced by CO photolysis and O formation
Tatsuya Yoshida, Shohei Aoki, Hiromu Nakagawa +8
The enrichment of heavy isotopes of volatile elements in the Martian atmosphere indicates that Mars lost a large portion of its atmosphere through escape to space. Recent atmospher…
Particle-particle Particle-tree Code for Planetary System Formation with Individual Cut-off Method: GPLUM
Yota Ishigaki, Junko Kominami, Junichiro Makino +2
In a standard theory of the formation of the planets in our Solar System, terrestrial planets and cores of gas giants are formed through accretion of kilometer-sized objects (plane…
Microlensed Radio Emission from Exoplanets
Yuta Shiohira, Yuka Terada, Den Mukuno +2
In this paper, we investigate the detectability of radio emission from exoplanets, especially hot Jupiters, which are magnified by gravitational microlensing. Because hot Jupiters…
The effect of high nitrogen pressures on the habitable zone and an appraisal of greenhouse states
Ramses M. Ramirez
The habitable zone is the main tool that mission architectures utilize to select potentially habitable planets for follow up spectroscopic observation. Given its importance, the pr…
Uranian Satellite Formation by Evolution of a Water Vapor Disk Generated by a Giant Impact
Shigeru Ida, Shoji Ueta, Takanori Sasaki +1
The ice-giant planet Uranus likely underwent a giant impact, given that its spin axis is tilted by 98 degrees. That its satellite system is equally inclined and prograde suggests t…
Impact Ejecta near the Impact Point Observed using Ultra-high-speed Imaging and SPH Simulations, and a Comparison of the Two Methods
Takaya Okamoto, Kosuke Kurosawa, Hidenori Genda +1
High-speed impact ejecta at velocities comparable to the impact velocity are expected to contribute to material transport between planetary bodies and deposition of ejecta far from…
Earth-Like: An education & outreach tool for exploring the diversity of planets like our own
Elizabeth J. Tasker, Kana Ishimaru, Nicholas Guttenberg +1
Earth-Like is an interactive website and twitter bot that allows users to explore changes in the average global surface temperature of an Earth-like planet due to variations in the…
The Properties of Planetesimal Collisions under Jupiter's Perturbation and the Application to Chondrule Formation via Impact Jetting
Shoichi Oshino, Yasuhiro Hasegawa, Shigeru Wakita +1
Understanding chondrule formation provides invaluable clues about the origin of the solar system. Recent studies suggest that planetesimal collisions and the resulting impact melts…
The formation of the Martian moons
Pascal Rosenblatt, Ryuki Hyodo, Francesco C. Pignatale +5
Almost all the planets of our solar system have moons. Each planetary system has however unique characteristics. The Martian system has not one single big moon like the Earth, not…
Diverse outcomes of planet formation and composition around low-mass stars and brown dwarfs
Y. Miguel, A. Cridland, C. W. Ormel +2
The detection of Earth-size exoplanets around low-mass stars -- in stars such as Proxima Centauri and TRAPPIST-1 -- provide an exceptional chance to improve our understanding of th…
When did Life Likely Emerge on Earth in an RNA-First Process?
Steven A. Benner, Elizabeth A. Bell, Elisa Biondi +7
The widespread presence of ribonucleic acid (RNA) catalysts and cofactors in Earth's biosphere today suggests that RNA was the first biopolymer to support Darwinian evolution. Howe…
Inner Edge of Habitable Zones for Earth-sized Planets with Various Surface Water Distributions
Takanori Kodama, Hidenori Genda, Ryouta O'ishi +2
When planets receive insolation above a certain critical value called the runaway threshold, liquid surface water vaporizes completely, which forms the inner edge of the habitable…
Photophoresis in the circumjovian disk and its impact on the orbital configuration of the Galilean satellites
Sota Arakawa, Yuhito Shibaike
Jupiter has four large regular satellites called the Galilean satellites: Io, Europa, Ganymede, and Callisto. The inner three of the Galilean satellites orbit in a 4:2:1 mean motio…
Climate simulations of early Mars with estimated precipitation, runoff, and erosion rates
Ramses M. Ramirez, Robert A. Craddock, Tomohiro Usui
The debate over the early Martian climate is among the most intriguing in planetary science. Although the geologic evidence generally supports a warmer and wetter climate, climate…
Spinning up planetary bodies by pebble accretion
R. G. Visser, C. W. Ormel, C. Dominik +1
Most major planetary bodies in the solar system rotate in the same direction as their orbital motion: their spin is prograde. Theoretical studies to explain the direction as well a…
Formation of rocky and icy planetesimals inside and outside the snow line: Effects of diffusion, sublimation and back-reaction
Ryuki Hyodo, Shigeru Ida, Sébastien Charnoz
It is important to clarify where and when rocky and icy planetesimals are formed in a viscously evolving disk. We wish to understand how local runaway pile-up of solids occurs insi…
Effects of a Binary Companion Star on Habitability of Tidally Locked Planets around an M-type Host Star
Ayaka Okuya, Yuka Fujii, Shigeru Ida
Planets in the "Habitable Zones" around M-type stars are important targets for characterization in future observations. Due to tidal-locking in synchronous spin-orbit rotations, th…
Theoretical Transmission Spectra of Exoplanet Atmospheres with Hydrocarbon Haze. II. Dependence on UV Irradiation Intensity, Metallicity, C/O Ratio, Eddy Diffusion Coefficient, and Temperature
Yui Kawashima, Masahiro Ikoma
Recent transmission spectroscopy has revealed that clouds and hazes are common in the atmospheres of close-in exoplanets. In this study, using the photochemical, microphysical, and…
Onset of giant planet migration before 4480 million years ago
Stephen J. Mojzsis, Ramon Brasser, Nigel M. Kelly +2
Immediately after their formation, the terrestrial planets experienced intense impact bombardment by comets, leftover planetesimals from primary accretion, and asteroids. This temp…
Possibility of Concentration of Non-volatile Species near the Surface of Comet 67P/Churyumov-Gerasimenko
Taiki Suzuki, Yoshiharu Shinnaka, Liton Majumdar +4
The cometary materials are thought to be the reservoir of primitive materials in the Solar System. The recent detection of glycine and CHNH by the ROSINA mass spectrometer…
Water delivery by pebble accretion to rocky planets in habitable zones in evolving disks
Shigeru Ida, Takeru Yamamura, Satoshi Okuzumi
The Earth's ocean mass is only 2.3 x 10^{-4} of the whole planet mass. Even including water in the interior, it would be at most 10^{-3}-10^{-2}. Ancient Mars may have had a simila…
Albedos, Equilibrium Temperatures, and Surface Temperatures of Habitable Planets
Anthony D. Del Genio, Nancy Y. Kiang, Michael J. Way +8
The potential habitability of known exoplanets is often categorized by a nominal equilibrium temperature assuming a Bond albedo of either 0.3, similar to Earth, or 0. As an indicat…
Direct imaging of molten protoplanets in nearby young stellar associations
Irene Bonati, Tim Lichtenberg, Dan J Bower +2
During their formation and early evolution, rocky planets undergo multiple global melting events due to accretionary collisions with other protoplanets. The detection and character…
Impact bombardment on the regular satellites of Jupiter and Uranus during an episode of giant planet migration
E. W. Wong, R. Brasser, S. C. Werner
The intensity and effects of early impact bombardment on the major satellites of the giant planets during an episode of giant planet migration is still poorly known. We use a combi…