64 citations · 335 across the 11 of their papers we have counts for
11 papers
Evolution of a Water-rich Atmosphere Formed by a Giant Impact on an Earth-sized Planet
Kenji Kurosaki, Yasunori Hori, Masahiro Ogihara +1
The atmosphere of a terrestrial planet that is replenished with secondary gases should have accumulated hydrogen-rich gas from its protoplanetary disk. Although a giant impact blow…
Giant Impact Events for Protoplanets: Energetics of Atmospheric Erosion by Head-on Collision
Kenji Kurosaki, Shu-ichiro Inutsuka
Numerous exoplanets with masses ranging from Earth to Neptune and radii larger than Earth have been found through observations. These planets possess atmospheres that range in mass…
Size evolution of close-in super-Earths through giant impacts and photoevaporation
Yuji Matsumoto, Eiichiro Kokubo, Pin-Gao Gu +1
The Kepler transit survey with follow-up spectroscopic observations has discovered numerous super-Earth sized planets and revealed intriguing features of their sizes, orbital perio…
Formation of giant planets with large metal masses and metal fractions via giant impacts in a rapidly dissipating disk
Masahiro Ogihara, Yasunori Hori, Masanobu Kunitomo +1
According to planetary interior models, some giant planets contain large metal masses with large metal-mass fractions. HD 149026b and TOI-849b are characteristic examples of these…
The Exchange of Mass and Angular Momentum in the Impact Event of Ice Giant Planets: Implications for the origin of Uranus
Kenji Kurosaki, Shu-ichiro Inutsuka
Uranus has a tilted rotation axis, which is supposed to be caused by a giant impact. In general, an impact event also changes the internal compositional distribution and drives mas…
Acceleration of Cooling of Ice Giants by Condensation in Early Atmospheres
Kenji Kurosaki, Masahiro Ikoma
The present infrared brightness of a planet originates partly from the accretion energy that the planet gained during its formation and hence provides important constraints to the…
Multi-band, Multi-epoch Observations of the Transiting Warm Jupiter WASP-80b
Akihiko Fukui, Yui Kawashima, Masahiro Ikoma +22
WASP-80b is a warm Jupiter transiting a bright late-K/early-M dwarf, providing a good opportunity to extend the atmospheric study of hot Jupiters toward the lower temperature regim…
Starspots - Transit Depth Relation of the Evaporating Planet Candidate KIC 12557548b
Hajime Kawahara, Teruyuki Hirano, Kenji Kurosaki +2
Violent variation of transit depths and an ingress-egress asymmetry of the transit light curve discovered in KIC 12557548 have been interpreted as evidences of a catastrophic evapo…
Impact of photoevaporative mass loss on masses and radii of water-rich sub/super-Earths
Kenji Kurosaki, Masahiro Ikoma, Yasunori Hori
Recent progress in transit photometry opened a new window to the interior of super-Earths. From measured radii and masses, we can infer planetary internal compositions. It has been…
Multi-Color Transit Photometry of GJ 1214b through BJHKs-Bands and a Long-Term Monitoring of the Stellar Variability of GJ 1214
Norio Narita, Akihiko Fukui, Masahiro Ikoma +19
We present 5 new transit light curves of GJ 1214b taken in BJHKs-bands. Two transits were observed in B-band using the Suprime-Cam and the FOCAS instruments onboard the Subaru 8.2m…
Optical-to-Near-Infrared Simultaneous Observations for the Hot Uranus GJ3470b: A Hint for Cloud-free Atmosphere
Akihiko Fukui, Norio Narita, Kenji Kurosaki +15
We present optical (g', R_c, and I_c) to near-infrared (J) simultaneous photometric observations for a primary transit of GJ3470b, a Uranus-mass transiting planet around a nearby M…