activity
20162021
most citedMinor Contribution of Quasars to Ionizing Photon Budget at z~6: Update on Quasar Luminosity Function at the Faint-end with Subaru/Suprime-Cam

68 citations · 191 across the 7 of their papers we have counts for

collaborators

14 papers

astro-ph.GA2021

Interrelation of the environment of Ly emitters and massive galaxies at

Kei Ito, Nobunari Kashikawa, Masayuki Tanaka +7

We present a comparison of the spatial distributions of Ly emitters (LAEs) and massive star-forming and quiescent galaxies (SFGs and QGs) at . We use the photometric re…

astro-ph.GA20209 cited

Faint Quasars Live in the Same Number Density Environments as Lyman Break Galaxies at z ~ 4

Hisakazu Uchiyama, Masayuki Akiyama, Jun Toshikawa +16

Characterizing high-z quasar environments is key to understanding the co-evolution of quasars and the surrounding galaxies. To restrict their global picture, we statistically exami…

astro-ph.GA2020

Subaru High-z Exploration of Low-Luminosity Quasars (SHELLQs). XI. Proximity Zone Analysis for Faint Quasar Spectra at z~6

Rikako Ishimoto, Nobunari Kashikawa, Masafusa Onoue +14

We present measurements of the size of the quasar proximity zone () for eleven low-luminosity () quasars at , discovered by the Subaru H…

astro-ph.GA2020

Statistical correlation between the distribution of Ly emitters and IGM HI at mapped by Subaru/Hyper Suprime-Cam

Yongming Liang, Nobunari Kashikawa, Zheng Cai +11

The correlation between neutral Hydrogen (HI) in the intergalactic medium (IGM) and galaxies now attracts great interests. We select four fields which include several coherently st…

astro-ph.GA202027 cited

The UV Luminosity Function of Protocluster Galaxies at : the Bright-end Excess and the Enhanced Star Formation Rate Density

Kei Ito, Nobunari Kashikawa, Jun Toshikawa +12

We report the rest-frame ultraviolet luminosity function of -dropout galaxies in 177 protocluster candidates (PC UVLF) at selected in the Hyper Suprime-Cam Subaru Strat…

astro-ph.GA202017 cited

Wide and Deep Exploration of Radio Galaxies with Subaru HSC (WERGS). III. Discovery of a z = 4.72 Radio Galaxy with Lyman Break Technique

Takuji Yamashita, Tohru Nagao, Hiroyuki Ikeda +17

We report a discovery of radio galaxy, HSC J083913.17+011308.1, by using the Lyman break technique with the Hyper Suprime-Cam Subaru Strategic Survey (HSC-SSP) catalog f…