activity
20152019
most citedResolution Dependence of Disruptive Collisions between Planetesimals in the Gravity Regime

50 citations · 120 across the 5 of their papers we have counts for

collaborators

5 papers

astro-ph.EP2019★ 25 cited

Runaway climate cooling of ocean planets in the habitable zone: a consequence of seafloor weathering enhanced by melting of high-pressure ice

Akifumi Nakayama, Takanori Kodama, Masahiro Ikoma +1

Terrestrial planets covered globally with thick oceans (termed ocean planets) in the habitable zone were previously inferred to have extremely hot climates in most cases. This is b…

astro-ph.EP2017★ 27 cited

Impact Erosion Model for Gravity-Dominated Planetesimals

H. Genda, T. Fujita, H. Kobayashi +3

Disruptive collisions have been regarded as an important process for planet formation, while non-disruptive, small-scale collisions (hereafter called erosive collisions) have been…

astro-ph.EP2015★ 18 cited

Rapid Water Loss can Extend the Lifetime of the Planetary Habitability

T. Kodama, H. Genda, Y. Abe +1

Two habitable planetary states are proposed: an aqua planet like the Earth and a land planet that has a small amount of water. Land planets keep liquid water under larger solar rad…

astro-ph.EP2015★ 50 cited

Resolution Dependence of Disruptive Collisions between Planetesimals in the Gravity Regime

H. Genda, T. Fujita, H. Kobayashi +2

Collisions are a fundamental process in planet formation. If colliding objects simply merge, a planetary object can grow. However, if the collision is disruptive, planetary growth…

astro-ph.EP2015

Lifetime and Spectral Evolution of a Magma Ocean with a Steam Atmosphere: Its Detectability by Future Direct Imaging

Keiko Hamano, Hajime Kawahara, Yutaka Abe +2

We present the thermal evolution and emergent spectra of solidifying terrestrial planets along with the formation of steam atmospheres. The lifetime of a magma ocean and its spectr…