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Showing 1–6 of 6 results

Advanced filters: Author: Ryuki Hyodo Clear advanced filters

Surface rejuvenation of stony near-Earth asteroids triggered by planetary shadows

Stony near-Earth asteroids may undergo fragmentation of surface rocks triggered by thermal shocks as they pass through the shadows of terrestrial planets, leading to surface rejuvenation, according to orbital simulations and thermophysical modelling.

Kohei Kitazato
Sho Sakurai
Naru Hirata
Research15 Jan 2026
Nature Geoscience

Volume: 19, P: 247-252
Early formation of moons around large trans-Neptunian objects via giant impacts

All trans-Neptunian objects larger than 1,000 km have satellites. A hydrodynamic simulation shows that such satellites were formed by giant impacts that happened before the migration of Neptune and that kept the satellites in a fluid-like state for 10⁴–10⁶ yr.

Sota Arakawa
Ryuki Hyodo
Hidenori Genda
Research24 Jun 2019
Nature Astronomy

Volume: 3, P: 802-807
Transport of impact ejecta from Mars to its moons as a means to reveal Martian history

Ryuki Hyodo
Kosuke Kurosawa
Kazuhisa Fujita
ResearchOpen Access27 Dec 2019
Scientific Reports

Volume: 9, P: 1-6
Pollution resistance of Saturn’s ring particles during micrometeoroid impact

Simulations of micrometeoroid impacts into Saturn’s icy ring particles find limited pollution of the particles by non-icy material, suggesting Saturn’s rings may appear younger than their actual age.

Ryuki Hyodo
Hidenori Genda
Gustavo Madeira
ResearchOpen Access16 Dec 2024
Nature Geoscience

Volume: 18, P: 44-49
Accretion of Phobos and Deimos in an extended debris disc stirred by transient moons

Mars has two small moons that may have formed in the aftermath of a giant impact. Simulations suggest that Phobos and Deimos accreted from the disperse outer region of the debris disc that was stirred up by short-lived larger moons.

Pascal Rosenblatt
Sébastien Charnoz
Stéven Toupin
Research04 Jul 2016
Nature Geoscience

Volume: 9, P: 581-583
Saturn’s F ring and shepherd satellites a natural outcome of satellite system formation

Lying beyond Saturn’s main rings, the F ring is shepherded by two small satellites. Simulations suggest that this enigmatic configuration can result from the partial disruption of satellites in collisions at the edge of the main ring system.

Ryuki Hyodo
Keiji Ohtsuki
Research17 Aug 2015
Nature Geoscience

Volume: 8, P: 686-689