36 citations · 147 across the 11 of their papers we have counts for
11 papers
Particle deposition on the saturnian satellites from ephemeral cryovolcanism on Enceladus
Naoyuki Hirata, Hideaki Miyamoto, Adam P. Showman
The geologically active south pole of Enceladus generates a plume of micron-sized particles, which likely form Saturn's tenuous E-ring extending from the orbit of Mimas to Titan. I…
Timing of the faulting on the Wispy Terrain of Dione based on stratigraphic relationships with impact craters
Naoyuki Hirata
The trailing hemisphere of Dione is characterized by the Wispy Terrain, where it exhibits a hemispheric-scale network of extensional tectonic faults superposed on the moon's crater…
Rayed craters on Dione: Implication for the dominant surface alteration process
Naoyuki Hirata, Hideaki Miyamoto
From recently-acquired, high-resolution images obtained by the Cassini spacecraft, we examine the patterns and spatial distributions of rayed craters on Dione. We identify 29 rayed…
The spatial distribution of impact craters on Ryugu
Naoyuki Hirata, Tomokatsu Morota, Yuichiro Cho +40
Asteroid 162173 Ryugu has numerous craters. The initial measurement of impact craters on Ryugu, by Sugita et al. (2019), is based on Hayabusa2 ONC images obtained during the first…
Ejecta emplacement as the possible origin of Ryugu's equatorial ridge
Ren Ikeya, Naoyuki Hirata
The Japanese spacecraft Hayabusa 2 visited the asteroid (162173) Ryugu and provided many high-resolution images of its surface, revealing that Ryugu has a spinning-top shape with a…
Ejecta distribution from impact craters on Ryugu: possible origin of the bluer units
Naoyuki Hirata, Ren Ikeya
Asteroid (162173) Ryugu was the first spinning-top-shaped asteroid to be closely approached by a probe, the Hayabusa2 spacecraft, which sent numerous high-resolution images of Ryug…