65 citations · 275 across the 18 of their papers we have counts for
18 papers
Cloud reflection modelling for impact flashes on Jupiter: A new constraint on the bulk properties of the impact objects
Ko Arimatsu, Kohji Tsumura, Fumihiko Usui +1
We investigate optical characteristics of flashes caused by impacting meter- to decameter-sized outer solar system objects on Jupiter and contributions of reflected light from surf…
Modelling the optical energy profile of the 2021 October Jupiter impact flash
Ko Arimatsu, Kohji Tsumura, Fumihiko Usui +1
We have conducted numerical simulations to reproduce the observed optical energy profile of the 15 October 2021 (UT) impact flash on Jupiter, which was the largest and the most wel…
Video Observations of Tiny Near-Earth Objects with Tomo-e Gozen
Jin Beniyama, Shigeyuki Sako, Ryou Ohsawa +20
We report the results of video observations of tiny (diameter less than 100 m) near-Earth objects (NEOs) with Tomo-e Gozen on the Kiso 105 cm Schmidt telescope. A rotational period…
Detection of an extremely large impact flash on Jupiter by high-cadence multiwavelength observations
Ko Arimatsu, Kohji Tsumura, Fumihiko Usui +1
We report the detection of an optical impact flash on Jupiter on 15 October 2021 by a dedicated telescope, Planetary ObservatioN Camera for Optical Transient Surveys (PONCOTS), for…
Detectability of optical transients with timescales of sub-seconds
Ko Arimatsu, Kohji Tsumura, Fumihiko Usui +2
We search for optical transient sources with durations of to s using a dataset obtained in the Organized Autotelescopes for Serendipitous Event Survey (OASES)…
An optical search for transients lasting a few seconds
Michael W. Richmond, Masaomi Tanaka, Tomoki Morokuma +37
Using a prototype of the Tomo-e Gozen wide-field CMOS mosaic camera, we acquire wide-field optical images at a cadence of 2 Hz and search them for transient sources of duration 1.5…