562 citations · 2.8k across the 51 of their papers we have counts for
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Formation of the first star clusters and massive star binaries by fragmentation of filamentary primordial gas clouds
Shingo Hirano, Naoki Yoshida, Yuya Sakurai +1
We perform a set of cosmological simulations of early structure formation with incorporating baryonic streaming motions. We present a case where a significantly elongated gas cloud…
Supersonic Gas Streams Enhance the Formation of Massive Black Holes in the Early Universe
Shingo Hirano, Takashi Hosokawa, Naoki Yoshida +1
The origin of super-massive black holes in the early universe remains poorly understood.Gravitational collapse of a massive primordial gas cloud is a promising initial process,but…
First star formation in ultra-light particle dark matter cosmology
Shingo Hirano, James M. Sullivan, Volker Bromm
The formation of the first stars in the high-redshift Universe is a sensitive probe of the small-scale, particle physics nature of dark matter (DM). We carry out cosmological simul…
Formation of Intermediate-Mass Black Holes through Runaway Collisions in the First Star Clusters
Yuya Sakurai, Naoki Yoshida, Michiko S. Fujii +1
We study the formation of massive black holes in the first star clusters. We first locate star-forming gas clouds in proto-galactic haloes of in c…