output
19952025
most citedSubaru High-z Exploration of Low-Luminosity Quasars (SHELLQs). V. Quasar Luminosity Function and Contribution to Cosmic Reionization at z = 6

224 citations

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43 papers · 1 filter

astro-ph.GA2025

The X-ray statistical properties of dust-obscured galaxies detected by eROSITA

Akatoki Noboriguchi, Kohei Ichikawa, Yoshiki Toba +15

Dust-obscured galaxies (DOGs) are considered to be in a co-evolution phase, with the associated active galactic nuclei (AGN) obscured by dust and gas. Although the DOGs are thought…

astro-ph.GA2024★ 18 cited

Discovery of merging twin quasars at z = 6.05

Yoshiki Matsuoka, Takuma Izumi, Masafusa Onoue +14

We report the discovery of two quasars at a redshift of = 6.05, in the process of merging. They were serendipitously discovered from the deep multi-band imaging data collected…

astro-ph.GA2023★ 64 cited

Quasar Luminosity Function at z = 7

Yoshiki Matsuoka, Masafusa Onoue, Kazushi Iwasawa +41

We present the quasar luminosity function (LF) at , measured with 35 spectroscopically confirmed quasars at . The sample of 22 quasars from the Subaru High-…

astro-ph.GA2022★ 13 cited

Extreme nature of four blue-excess dust-obscured galaxies revealed by optical spectroscopy

Akatoki Noboriguchi, Tohru Nagao, Yoshiki Toba +13

We report optical spectroscopic observations of four blue-excess dust-obscured galaxies (BluDOGs) identified by Subaru Hyper Suprime-Cam. BluDOGs are a sub-class of dust-obscured g…

astro-ph.GA2022★ 127 cited

Detection of stellar light from quasar host galaxies at redshifts above 6

Xuheng Ding, Masafusa Onoue, John D. Silverman +41

The detection of starlight from the host galaxies of quasars during the reionization epoch () has been elusive, even with deep HST observations. The current highest redshift q…

astro-ph.GA2022★ 6 cited

A Wide and Deep Exploration of Radio Galaxies with Subaru HSC (WERGS). IX. The Most Overdense Region at z~5 Inhabited by a Massive Radio Galaxy

Hisakazu Uchiyama, Takuji Yamashita, Tohru Nagao +13

We report on the galaxy density environment around a high-z radio galaxy (HzRG) at z=4.72, HSC J083913.17+011308.1 (HSC J0839+0113), probed using an r-dropout Lyman break galaxy (L…