557 citations · 4.3k across the 68 of their papers we have counts for
4 papers · 1 filter
The metal enrichment of passive galaxies in cosmological simulations of galaxy formation
Takashi Okamoto, Masahiro Nagashima, Cedric G. Lacey +1
Massive early-type galaxies have higher metallicities and higher ratios of elements to iron than their less massive counterparts. Reproducing these correlations has long been a…
Detection of an oxygen emission line from a high redshift galaxy in the reionization epoch
Akio K. Inoue, Yoichi Tamura, Hiroshi Matsuo +14
The physical properties and elemental abundances of the interstellar medium in galaxies during cosmic reionization are important for understanding the role of galaxies in this proc…
Radiation feedback in dusty clouds
Shohei Ishiki, Takashi Okamoto
We have investigated the impact of photoionization and radiation pressure on a dusty star-forming cloud using one-dimensional radiation hydrodynamic simulations, which include abso…
Theoretical reevaluations of the black hole mass - bulge mass relation - I. Effect of the seed black hole mass
Hikari Shirakata, Toshihiro Kawaguchi, Takashi Okamoto +7
We explore the effect of varying the mass of the seed black hole on the resulting black hole mass - bulge mass relation at z ~ 0, using a semi-analytic model of galaxy formation co…