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Dive into the research topics where Masafusa Onoue is active.

Publication


Featured researches published by Masafusa Onoue.


The Astrophysical Journal | 2016

Subaru high-z exploration of low-luminosity quasars (SHELLQs). I. Discovery of 15 quasars and bright galaxies at 5.7 < z < 6.9

Yoshiki Matsuoka; Masafusa Onoue; Nobunari Kashikawa; Kazushi Iwasawa; Michael A. Strauss; Tohru Nagao; Masatoshi Imanishi; Mana Niida; Yoshiki Toba; Masayuki Akiyama; Naoko Asami; James Bosch; S. Foucaud; Hisanori Furusawa; Tomotsugu Goto; James E. Gunn; Yuichi Harikane; Hiroyuki Ikeda; Toshihiro Kawaguchi; Satoshi Kikuta; Yutaka Komiyama; Robert H. Lupton; Takeo Minezaki; Satoshi Miyazaki; Hitoshi Murayama; Atsushi J. Nishizawa; Yoshiaki Ono; Masami Ouchi; Paul A. Price; Hiroaki Sameshima

We report the discovery of 15 quasars and bright galaxies at 5.7 6 galaxies, compared with that of quasars, at magnitudes fainter than M1450 ~ -22 mag or zAB ~24 mag. Follow-up studies of the discovered objects as well as further survey observations are ongoing.


The Astrophysical Journal | 2017

A New Constraint on Reionization from the Evolution of the Lyα Luminosity Function at z ∼ 6–7 Probed by a Deep Census of z = 7.0 Lyα Emitter Candidates to 0.3L * *

Kazuaki Ota; Masanori Iye; Nobunari Kashikawa; Akira Konno; Fumiaki Nakata; Tomonori Totani; Masakazu Kobayashi; Yoshinobu Fudamoto; Akifumi Seko; Jun Toshikawa; Akie Ichikawa; Takatoshi Shibuya; Masafusa Onoue

We detect 20


Publications of the Astronomical Society of Japan | 2018

Subaru High-z Exploration of Low-Luminosity Quasars (SHELLQs). II. Discovery of 32 Quasars and Luminous Galaxies at 5.7 < z < 6.8

Yoshiki Matsuoka; Masafusa Onoue; Nobunari Kashikawa; Kazushi Iwasawa; Michael A. Strauss; Tohru Nagao; Masatoshi Imanishi; Chien-Hsiu Lee; Masayuki Akiyama; Naoko Asami; James Bosch; S. Foucaud; Hisanori Furusawa; Tomotsugu Goto; James E. Gunn; Yuichi Harikane; Hiroyuki Ikeda; Takuma Izumi; Toshihiro Kawaguchi; Satoshi Kikuta; Kotaro Kohno; Yutaka Komiyama; Robert H. Lupton; Takeo Minezaki; Satoshi Miyazaki; Hitoshi Murayama; Mana Niida; Atsushi J. Nishizawa; Masamune Oguri; Yoshiaki Ono

z=7.0


The Astrophysical Journal | 2013

EXTENDED Lyα EMISSION FROM A DAMPED Lyα ABSORBER AT z = 3.115*

Nobunari Kashikawa; Toru Misawa; Yosuke Minowa; Katsuya Okoshi; Takashi Hattori; Jun Toshikawa; Shogo Ishikawa; Masafusa Onoue

Ly


The Astrophysical Journal | 2016

A Systematic Survey of Protoclusters at

Jun Toshikawa; Nobunari Kashikawa; Roderik Overzier; Matthew A. Malkan; Hisanori Furusawa; Shogo Ishikawa; Masafusa Onoue; Kazuaki Ota; M. Tanaka; Yuu Niino; Hisakazu Uchiyama

\alpha


arXiv: Cosmology and Nongalactic Astrophysics | 2013

z\sim3\mathrm{-}6

Nobunari Kashikawa; Toru Misawa; Yosuke Minowa; Katsuya Okoshi; Takashi Hattori; Jun Toshikawa; Shogo Ishikawa; Masafusa Onoue

emitter (LAE) candidates to


Monthly Notices of the Royal Astronomical Society | 2015

in the CFHTLS Deep Fields

Shogo Ishikawa; Nobunari Kashikawa; Jun Toshikawa; Masafusa Onoue

L({\rm Ly}\alpha) \geq 2 \times 10^{42}


Publications of the Astronomical Society of Japan | 2018

Extended Lyman-alpha emission from a high-z DLA at z=3.115

Jun Toshikawa; Hisakazu Uchiyama; Nobunari Kashikawa; Masami Ouchi; Roderik Overzier; Yoshiaki Ono; Yuichi Harikane; Shogo Ishikawa; Tadayuki Kodama; Yuichi Matsuda; Yen-Ting Lin; Masafusa Onoue; M. Tanaka; Tohru Nagao; Masayuki Akiyama; Yutaka Komiyama; Tomotsugu Goto; Chien-Hsiu Lee

erg s


Publications of the Astronomical Society of Japan | 2015

The very wide-field gzK galaxy survey – I. Details of the clustering properties of star-forming galaxies at z ∼ 2

Yoshiki Toba; Tohru Nagao; Michael A. Strauss; Kentaro Aoki; Tomotsugu Goto; Masatoshi Imanishi; Toshihiro Kawaguchi; Yuichi Terashima; Yoshihiro Ueda; James Bosch; Kevin Bundy; Yoshiyuki Doi; Hanae Inami; Yutaka Komiyama; Robert H. Lupton; Hideo Matsuhara; Yoshiki Matsuoka; Satoshi Miyazaki; Fumiaki Nakata; Nagisa Oi; Masafusa Onoue; Shinki Oyabu; Paul A. Price; Philip J. Tait; Tadafumi Takata; Manobu Tanaka; Tsuyoshi Terai; Edwin L. Turner; Tomohisa Uchida; Tomonori Usuda

^{-1}


The Astrophysical Journal | 2017

GOLDRUSH. III. A systematic search for protoclusters at z ∼ 4 based on the >100 deg2 area

Masafusa Onoue; Nobunari Kashikawa; Chris J. Willott; Pascale Hibon; Myungshin Im; Hisanori Furusawa; Yuichi Harikane; Masatoshi Imanishi; Shogo Ishikawa; Satoshi Kikuta; Yoshiki Matsuoka; Tohru Nagao; Yuu Niino; Yoshiaki Ono; Masami Ouchi; M. Tanaka; Ji-Jia Tang; Jun Toshikawa; Hisakazu Uchiyama

or

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Nobunari Kashikawa

Graduate University for Advanced Studies

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Jun Toshikawa

Graduate University for Advanced Studies

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Shogo Ishikawa

Graduate University for Advanced Studies

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Yutaka Komiyama

Graduate University for Advanced Studies

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Masatoshi Imanishi

Graduate University for Advanced Studies

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