201 citations · 2.1k across the 98 of their papers we have counts for
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Gas clump formation via thermal instability in high-redshift dwarf galaxy mergers
Shohei Arata, Hidenobu Yajima, Kentaro Nagamine
Star formation in high-redshift dwarf galaxies is a key to understand early galaxy evolution in the early Universe. Using the three-dimensional hydrodynamics code GIZMO, we study t…
Detectability of 21cm-signal during the Epoch of Reionization with 21cm-Lyman- emitter cross-correlation. I
Kenji Kubota, Shintaro Yoshiura, Keitaro Takahashi +5
Detection of the redshifted 21cm-line signal from neutral hydrogen in the intergalactic medium (IGM) during the Epoch of Reionization (EoR) is complicated by intense foregrounds su…
Growth of First Galaxies: Impacts of Star Formation and Stellar Feedback
Hidenobu Yajima, Kentaro Nagamine, Qirong Zhu +2
We present the results of cosmological hydrodynamic simulations with zoom-in initial conditions, and investigate the formation of the first galaxies and their evolution towards obs…
Dusty Gas Accretion onto Massive Black Holes and Infrared Diagnosis of the Eddington Ratio
Hidenobu Yajima, Massimo Ricotti, KwangHo Park +1
Evidence for dust around supermassive black holes (SMBHs) in the early Universe is strongly suggested by recent observations. However, the accretion mechanism of SMBHs in dusty gas…
Modelling of Lyman-alpha Emitting Galaxies and Ionized Bubbles at the Era of Reionization
Hidenobu Yajima, Kazuyuki Sugimura, Kenji Hasegawa
Understanding Ly emitting galaxies (LAEs) can be a key to reveal cosmic reionization and galaxy formation in the early Universe. Based on halo merger trees and Ly radiation t…