109 citations · 502 across the 27 of their papers we have counts for
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Unified simulations of planetary formation and atmospheric evolution II: Rapid disk clearing by photoevaporation yields low-mass super-Earth atmospheres
Masahiro Ogihara, Masanobu Kunitomo, Yasunori Hori
Super-Earths possess low-mass H/He atmospheres (typically less than 10% by mass). However, the origins of super-Earth atmospheres have not yet been ascertained. We investigate…
Promoted Mass Growth of Multiple, Distant Giant Planets through Pebble Accretion and Planet-Planet Collision
John Wimarsson, Beibei Liu, Masahiro Ogihara
We propose a pebble-driven planet formation scenario to form giant planets with high multiplicity and large orbital distances in the early gas disk phase. We perform N-body simulat…
Unified simulations of planetary formation and atmospheric evolution: Effects of pebble accretion, giant impacts, and stellar irradiations on super-Earth formation
Masahiro Ogihara, Yasunori Hori
A substantial number of super-Earths have been discovered, and atmospheres of transiting super-Earths have also been observed by transmission spectroscopy. Several lines of observa…
Formation of single-moon systems around gas giants
Yuri I. Fujii, Masahiro Ogihara
Several mechanisms have been proposed to explain the formation process of satellite systems, and relatively large moons are thought to be born in circumplanetary disks. Making a si…
Breaking Resonant Chains: Destabilization of Resonant Planets due to Long-term Mass Evolution
Yuji Matsumoto, Masahiro Ogihara
Recent exoplanet observations reported a large number of multiple-planet systems, in which some of the planets are in a chain of resonances. The fraction of resonant systems to non…
Do the TRAPPIST-1 Planets Have Hydrogen-rich Atmospheres?
Yasunori Hori, Masahiro Ogihara
Recently, transmission spectroscopy in the atmospheres of the TRAPPIST-1 planets revealed flat and featureless absorption spectra, which rule out cloud-free hydrogen-dominated atmo…