146 citations · 492 across the 14 of their papers we have counts for
9 papers · 1 filter
Equivalence between simple multilayered and homogeneous laboratory-based rheological models in planetary science
Yeva Gevorgyan, Isamu Matsuyama, Clodoaldo Ragazzo
The goal of this work is to investigate under which circumstances the tidal response of a stratified body can be approximated by that of a homogeneous body. We show that any multil…
The thermal-orbital evolution of the Earth-Moon system with a subsurface magma ocean and fossil figure
Brynna G. Downey, Francis Nimmo, Isamu Matsuyama
Various theories have been proposed to explain the Moon's current inclined orbit. We test the viability of these theories by reconstructing the thermal-orbital history of the Moon.…
New Constraints on Pluto's Sputnik Planitia Ice Sheet from a Coupled Reorientation-Climate Model
Perianne E. Johnson, James T. Keane, Leslie A. Young +1
We present a coupled reorientation and climate model, to understand how true polar wander (TPW) and atmospheric condensation worked together to create the Sputnik Planitia (SP) ice…
Inclination damping on Callisto
Brynna G. Downey, Francis Nimmo, Isamu Matsuyama
Callisto is thought to possess a subsurface ocean, which will dissipate energy due to obliquity tides. This dissipation should have damped any primordial inclination within 1 Gyr -…
Powering the Galilean Satellites with Moon-Moon Tides
Hamish C. F. C. Hay, Antony Trinh, Isamu Matsuyama
There is compelling evidence for subsurface water oceans among the three outer Galilean satellites, and evidence for an internal magma ocean in the innermost moon, Io. Tidal forces…
Tides between the TRAPPIST-1 planets
Hamish Hay, Isamu Matsuyama
The TRAPPIST-1 system is sufficiently closely packed that tides raised by one planet on another are significant. We investigate whether this source of tidal heating is comparable t…
Ocean tidal heating in icy satellites with solid shells
Isamu Matsuyama, Mikael Beuthe, Hamish C. F. C. Hay +2
As a long-term energy source, tidal heating in subsurface oceans of icy satellites can influence their thermal, rotational, and orbital evolution, and the sustainability of oceans.…
Evidence for Lunar True Polar Wander, and a Past Low-Eccentricity, Synchronous Lunar Orbit
James Tuttle Keane, Isamu Matsuyama
As first noted 200 years ago by Laplace, the Moon's rotational and tidal bulges are significantly larger than expected, given the Moon's present orbital and rotational state. This…
Dispersal of protoplanetary disks by central wind stripping
I. Matsuyama, D. Johnstone, D. Hollenbach
We present a model for the dispersal of protoplanetary disks by winds from either the central star or the inner disk. These winds obliquely strike the flaring disk surface and stri…