256 citations · 2.5k across the 78 of their papers we have counts for
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Spectral Uniformity of Little Red Dots: A Natural Outcome of Coevolving Seed Black Holes and Nascent Starbursts
Kohei Inayoshi, Kohta Murase, Kazumi Kashiyama
The birth of seeds of massive black holes (BHs) and nascent galaxies at cosmic dawn takes place in dense gaseous environments, which play a crucial role in shaping their coevolutio…
Exploring faint white dwarfs and the luminosity function with Subaru HSC and SDSS in Stripe 82
Tian Qiu, Masahiro Takada, Naoki Yasuda +4
We present 5,080 white dwarf (WD) candidates selected from stars matching between the multi-band imaging datasets of the Subaru Hyper Suprime-Cam (HSC) Survey and the Sloan Digital…
Exploring Low-Mass Black Holes through Tidal Disruption Events in the Early Universe: Perspectives in the Era of JWST, RST, and LSST Surveys
Kohei Inayoshi, Kazumi Kashiyama, Wenxiu Li +3
The James Webb Space Telescope (JWST) has recently uncovered the presence of low-luminosity active galactic nuclei (AGNs) at . Spectroscopic observations have provided esti…
Gravitational wave background from Population III binary black holes consistent with cosmic reionization
Kohei Inayoshi, Kazumi Kashiyama, Eli Visbal +1
The recent discovery of the gravitational wave source GW150914 has revealed a coalescing binary black hole (BBH) with masses of . Previous proposals for the origin…
Stellar Tidal Disruption Events by Direct Collapse Black Holes
Kazumi Kashiyama, Kohei Inayoshi
We analyze the early growth stage of direct-collapse black holes (DCBHs) with , which are formed by collapse of supermassive stars in atomic-cooling halo…
Direct collapse black hole formation via high-velocity collisions of protogalaxies
Kohei Inayoshi, Eli Visbal, Kazumi Kashiyama
We propose high-velocity collisions of protogalaxies as a new pathway to form supermassive stars (SMSs) with masses of ~ 10^5 Msun at high redshift (z > 10). When protogalaxies hos…