18 citations · 75 across the 7 of their papers we have counts for
7 papers
Ionization degree and magnetic diffusivity in star-forming clouds with different metallicities
Daisuke Nakauchi, Kazuyuki Omukai, Hajime Susa
Magnetic fields play such essential roles in star formation as transporting angular momentum and driving outflows from a star-forming cloud, thereby controlling the formation effic…
Pulsation-driven mass loss from massive stars behind stellar mergers in metal-poor dense clusters
Daisuke Nakauchi, Kohei Inayoshi, Kazuyuki Omukai
The recent discovery of high-redshift (z > 6) supermassive black holes (SMBH) favors the formation of massive seed BHs in protogalaxies. One possible scenario is formation of massi…
Ionization degree and magnetic diffusivity in the primordial star-forming clouds
Daisuke Nakauchi, Kazuyuki Omukai, Hajime Susa
Magnetic fields play such roles in star formation as the angular momentum transport in star-forming clouds, thereby controlling circumstellar disc formation and even binary star fo…
Condition for low-mass star formation in shock-compressed metal-poor clouds
Daisuke Nakauchi, Kazuyuki Omukai, Raffaella Schneider
Shocks may have been prevalent in the early Universe, associated with virialization and supernova explosions, etc. Here, we study thermal evolution and fragmentation of shock-compr…
Helium-Star Models with Optically Thick Winds: Implications for the Internal Structures and Mass-Loss Rates of Wolf-Rayet Stars
Daisuke Nakauchi, Hideyuki Saio
We construct helium (He) star models with optically thick winds and compare them with the properties of Galactic Wolf-Rayet (WR) stars. Hydrostatic He-core solutions are connected…
Do Stellar Winds Prevent the Formation of Supermassive Stars by Accretion?
Daisuke Nakauchi, Takashi Hosokawa, Kazuyuki Omukai +2
Supermassive stars (SMS; ~ 10^5 M_sun) formed from metal-free gas in the early Universe attract attention as progenitors of supermassive black holes observed at high redshifts. To…