562 citations · 9.1k across the 105 of their papers we have counts for
43 papers · 1 filter
Internal Radiative Feedback Triggers Global Collapse and Direct-Collapse Black Hole Formation in Metal-free Atomic-Cooling Haloes
Masaki Kiyuna, Sunmyon Chon, Kazuyuki Omukai +1
The formation of heavy seed black holes from the collapse of supermassive stars (SMSs) is a promising pathway to the supermassive black holes (SMBHs). In the conventional direct-co…
Formation of supermassive stars and dense star clusters in metal-poor clouds exposed to strong FUV radiation
Sunmyon Chon, Kazuyuki Omukai
The direct collapse scenario, which predicts the formation of supermassive stars (SMSs) as precursors to supermassive black holes (SMBHs), has been explored primarily under the ass…
Gravitational collapse at low to moderate Mach numbers: The relationship between star formation efficiency and the fraction of mass in the massive object
Jorge Saavedra-Bastidas, Dominik R. G. Schleicher, Ralf S. Klessen +7
The formation of massive objects via gravitational collapse is relevant both for explaining the origin of the first supermassive black holes and in the context of massive star form…
Impact of Turbulent Magnetic Fields on Disk Formation and Fragmentation in First Star Formation
Kenji Eric Sadanari, Kazuyuki Omukai, Kazuyuki Sugimura +2
Recent cosmological hydrodynamic simulations have suggested that the first stars in the universe often form as binary or multiple systems. However, previous studies typically overl…
Impact of radiative feedback on the initial mass function of metal-poor stars
Sunmyon Chon, Takashi Hosokawa, Kazuyuki Omukai +1
The stellar initial mass function (IMF) in the early universe is essential to understand the formation of ancient galaxies. To this end, we conduct a series of long-term radiation…
Metallicity Dependence of Molecular Cloud Hierarchical Structure at Early Evolutionary Stages
Masato I. N. Kobayashi, Kazunari Iwasaki, Kengo Tomida +3
The formation of molecular clouds out of HI gas is the first step toward star formation. Its metallicity dependence plays a key role to determine star formation through the cosmic…