253 citations · 3k across the 95 of their papers we have counts for
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Planetary Companions to Evolved Intermediate-Mass Stars: 14 Andromedae, 81 Ceti, 6 Lyncis, and HD 167042
Bun'ei Sato, Eri Toyota, Masashi Omiya +9
We report on the detection of four extrasolar planets orbiting evolved intermediate-mass stars from a precise Doppler survey of G and K giants at Okayama Astrophysical Observatory.…
Toward First-Principle Simulations of Galaxy Formation: II. Shock-Induced Starburst at a Collision Interface During the First Encounter of Interacting Galaxies
Takayuki R. Saitoh, Hiroshi Daisaka, Eiichiro Kokubo +5
We investigated the evolution of interacting disk galaxies using high-resolution -body/SPH simulations, taking into account the multiphase nature of the interstellar medium (ISM…
Toward first-principle simulations of galaxy formation: I. How should we choose star formation criteria in high-resolution simulations of disk galaxies?
Takayuki R. Saitoh, Hiroshi Daisaka, Eiichiro Kokubo +5
We performed 3-dimensional N-body/SPH simulations to study how mass resolution and other model parameters such as the star formation efficiency parameter, C* and the threshold dens…
Planetary Companions around Three Intermediate-Mass G and K Giants: 18 Del, xi Aql, and HD 81688
Bun'ei Sato, Hideyuki Izumiura, Eri Toyota +11
We report the detection of 3 new extrasolar planets from the precise Doppler survey of G and K giants at Okayama Astrophysical Observatory. The host stars, namely, 18 Del (G6 III),…
Angular Momentum Accretion onto a Gas Giant Planet
Masahiro N. Machida, Eiichiro Kokubo, Shu-ichiro Inutsuka +1
We investigate the accretion of angular momentum onto a protoplanet system using three-dimensional hydrodynamical simulations. We consider a local region around a protoplanet in a…