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Keiichi Umetsu
Researcher at Academia Sinica Institute of Astronomy and Astrophysics
Publications - 370
Citations - 20026
Keiichi Umetsu is an academic researcher from Academia Sinica Institute of Astronomy and Astrophysics. The author has contributed to research in topics: Galaxy cluster & Galaxy. The author has an hindex of 73, co-authored 360 publications receiving 18164 citations. Previous affiliations of Keiichi Umetsu include Academia Sinica & Tohoku University.
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Journal ArticleDOI
The cluster lensing and supernova survey with hubble: an overview
Marc Postman,Dan Coe,Narciso Benítez,Larry Bradley,Tom Broadhurst,Megan Donahue,H. Ford,Or Graur,Genevieve J. Graves,S. Jouvel,Anton M. Koekemoer,D. Lemze,Elinor Medezinski,Alberto Molino,Leonidas A. Moustakas,Sara Ogaz,Adam G. Riess,Adam G. Riess,S. Rodney,Piero Rosati,Keiichi Umetsu,Wei Zheng,Adi Zitrin,Matthias Bartelmann,R. J. Bouwens,Nicole G. Czakon,Sunil Golwala,O. Host,Leopoldo Infante,Saurabh Jha,Yolanda Jiménez-Teja,Daniel D. Kelson,Ofer Lahav,Ruth Lazkoz,D. Maoz,C. McCully,Peter Melchior,Massimo Meneghetti,Julian Merten,John Moustakas,Mario Nonino,Brandon Patel,Eniko Regos,Jack Sayers,Stella Seitz,Arjen van der Wel +45 more
TL;DR: The Cluster Lensing And Supernova Survey with Hubble (CLASH) as mentioned in this paper is a 524-orbit Multi-Cycle Treasury Program to use the gravitational lensing properties of 25 galaxy clusters to accurately constrain their mass distributions.
Journal ArticleDOI
Cluster Lensing And Supernova survey with Hubble (CLASH): An Overview
Marc Postman,Dan Coe,Narciso Benítez,Larry Bradley,Tom Broadhurst,Megan Donahue,Holland C. Ford,Or Graur,Genevieve J. Graves,Stephanie Jouvel,Anton M. Koekemoer,Doron Lemze,Elinor Medezinski,Alberto Molino,Leonidas A. Moustakas,Sara Ogaz,Adam G. Riess,S. Rodney,Piero Rosati,Keiichi Umetsu,Wei Zheng,Adi Zitrin,Matthias Bartelmann,Rychard Bouwens,Nicole G. Czakon,Ole Host,Leopoldo Infante,Saurabh Jha,Yolanda Jiménez-Teja,Daniel D. Kelson,Ofer Lahav,Ruth Lazkoz,D. Maoz,Curtis McCully,Peter Melchior,Massimo Meneghetti,Julian Merten,John Moustakas,Mario Nonino,Brandon Patel,Eniko Regos,Stella Seitz,Jack Sayers,Sunil Golwala,Arjen van der Wel +44 more
TL;DR: The Cluster Lensing And Supernova Survey with Hubble (CLASH) as mentioned in this paper is a 524-orbit multi-cycle treasury program to use the gravitational lensing properties of 25 galaxy clusters to accurately constrain their mass distributions.
Journal ArticleDOI
The Hyper Suprime-Cam SSP Survey: Overview and Survey Design
Hiroaki Aihara,Nobuo Arimoto,Robert Armstrong,Stephane Arnouts,Neta A. Bahcall,S. J. Bickerton,James Bosch,Kevin Bundy,Peter Capak,James H. H. Chan,Masashi Chiba,Jean Coupon,Eiichi Egami,Motohiro Enoki,F. Finet,Hiroki Fujimori,Seiji Fujimoto,Hisanori Furusawa,J. Furusawa,Tomotsugu Goto,Andy D. Goulding,Johnny P. Greco,Jenny E. Greene,James E. Gunn,Takashi Hamana,Yuichi Harikane,Yasuhiro Hashimoto,Takashi Hattori,Masao Hayashi,Yusuke Hayashi,Krzysztof G. Hełminiak,Ryo Higuchi,Chiaki Hikage,Paul T. P. Ho,Bau-Ching Hsieh,Kuiyun Huang,Song Huang,Hiroyuki Ikeda,Masatoshi Imanishi,Akio K. Inoue,K. Iwasawa,Ikuru Iwata,Anton T. Jaelani,Hung-Yu Jian,Y. Kamata,Hiroshi Karoji,Nobunari Kashikawa,N. Katayama,Satoshi Kawanomoto,Issha Kayo,Jun Koda,Michitaro Koike,Takashi Kojima,Yutaka Komiyama,Akira Konno,S. Koshida,Yusei Koyama,Haruka Kusakabe,A. Leauthaud,Chien-Hsiu Lee,Lihwai Lin,Yen-Ting Lin,Robert H. Lupton,Rachel Mandelbaum,Yoshiki Matsuoka,Elinor Medezinski,S. Mineo,Shoken M. Miyama,Hironao Miyatake,Satoshi Miyazaki,Rieko Momose,A. More,Surhud More,Y. Moritani,Takashi J. Moriya,Tomoki Morokuma,Shiro Mukae,Ryoma Murata,Hitoshi Murayama,Tohru Nagao,Fumiaki Nakata,Mana Niida,Hiroko Niikura,Atsushi J. Nishizawa,Yoshiyuki Obuchi,Masamune Oguri,Yukie Oishi,Nobuhiro Okabe,Yuki Okura,Yoshiaki Ono,Masato Onodera,M. Onoue,Ken Osato,Masami Ouchi,P. A. Price,Tae-Soo Pyo,M. Sako,Sakurako Okamoto,Marcin Sawicki,Takatoshi Shibuya,Kazuhiro Shimasaku,Atsushi Shimono,Masato Shirasaki,John D. Silverman,Melanie Simet,Joshua S. Speagle,David N. Spergel,Michael A. Strauss,Yuma Sugahara,Naoshi Sugiyama,Yasushi Suto,Sherry H. Suyu,Nao Suzuki,Philip J. Tait,Tadafumi Takata,Masahiro Takada,Naoyuki Tamura,Masayuki Tanaka,Masaomi Tanaka,Yoko Tanaka,T. Terai,Yuichi Terashima,Yoshiki Toba,Jun Toshikawa,Edwin L. Turner,Tomohisa Uchida,Hisakazu Uchiyama,Keiichi Umetsu,Fumihiro Uraguchi,Yuji Urata,Tomonori Usuda,Yousuke Utsumi,Shiang-Yu Wang,Wei-Hao Wang,Kenneth C. Wong,Kiyoto Yabe,Yoshihiko Yamada,Hitomi Yamanoi,Naoki Yasuda,Sherry Yeh,Atsunori Yonehara,Suraphong Yuma +141 more
TL;DR: Hyper Suprime-Cam (HSC) is a wide-field imaging camera on the prime focus of the 8.2m Subaru telescope on the summit of Maunakea in Hawaii as mentioned in this paper.
Journal ArticleDOI
The Hyper Suprime-Cam SSP Survey: Overview and survey design
Hiroaki Aihara,Nobuo Arimoto,Nobuo Arimoto,Robert Armstrong,Stéphane Arnouts,Neta A. Bahcall,Steven J. Bickerton,James Bosch,Kevin Bundy,Kevin Bundy,Peter Capak,James H. H. Chan,James H. H. Chan,Masashi Chiba,Jean Coupon,Eiichi Egami,Motohiro Enoki,F. Finet,Hiroki Fujimori,Seiji Fujimoto,Hisanori Furusawa,Junko Furusawa,Tomotsugu Goto,Andy D. Goulding,Johnny P. Greco,Jenny E. Greene,James E. Gunn,Takashi Hamana,Yuichi Harikane,Yasuhiro Hashimoto,Takashi Hattori,Masao Hayashi,Yusuke Hayashi,Krzysztof G. Hełminiak,Ryo Higuchi,Chiaki Hikage,Paul T. P. Ho,Bau-Ching Hsieh,Kuiyun Huang,Song Huang,Song Huang,Hiroyuki Ikeda,Masatoshi Imanishi,Akio K. Inoue,Kazushi Iwasawa,Ikuru Iwata,Ikuru Iwata,Anton T. Jaelani,Hung-Yu Jian,Yukiko Kamata,Hiroshi Karoji,Hiroshi Karoji,Nobunari Kashikawa,Nobuhiko Katayama,Satoshi Kawanomoto,Issha Kayo,Jin Koda,Michitaro Koike,Takashi Kojima,Yutaka Komiyama,Akira Konno,S. Koshida,Yusei Koyama,Yusei Koyama,Haruka Kusakabe,Alexie Leauthaud,Alexie Leauthaud,Chien-Hsiu Lee,Lihwai Lin,Yen-Ting Lin,Robert H. Lupton,Rachel Mandelbaum,Yoshiki Matsuoka,Elinor Medezinski,Sogo Mineo,Shoken Miyama,Shoken Miyama,Hironao Miyatake,Hironao Miyatake,Satoshi Miyazaki,Rieko Momose,A. More,Surhud More,Yuki Moritani,Takashi J. Moriya,Tomoki Morokuma,Tomoki Morokuma,Shiro Mukae,Ryoma Murata,Ryoma Murata,Hitoshi Murayama,Hitoshi Murayama,Hitoshi Murayama,Tohru Nagao,Fumiaki Nakata,Mana Niida,Hiroko Niikura,Hiroko Niikura,Atsushi J. Nishizawa,Yoshiyuki Obuchi,Masamune Oguri,Masamune Oguri,Yukie Oishi,Nobuhiro Okabe,Nobuhiro Okabe,Sakurako Okamoto,Yuki Okura,Yoshiaki Ono,Masato Onodera,Masafusa Onoue,Ken Osato,Masami Ouchi,Masami Ouchi,Paul A. Price,Tae-Soo Pyo,Masao Sako,Marcin Sawicki,Takatoshi Shibuya,Kazuhiro Shimasaku,Kazuhiro Shimasaku,Atsushi Shimono,Masato Shirasaki,John D. Silverman,Melanie Simet,Joshua S. Speagle,Joshua S. Speagle,David N. Spergel,David N. Spergel,Michael A. Strauss,Yuma Sugahara,Naoshi Sugiyama,Naoshi Sugiyama,Yasushi Suto,Sherry H. Suyu,Sherry H. Suyu,Sherry H. Suyu,Nao Suzuki,Philip J. Tait,Masahiro Takada,Tadafumi Takata,Naoyuki Tamura,Manobu Tanaka,Masaomi Tanaka,Masayuki Tanaka,Yoko Tanaka,Tsuyoshi Terai,Yuichi Terashima,Yoshiki Toba,Nozomu Tominaga,Nozomu Tominaga,Jun Toshikawa,Edwin L. Turner,Edwin L. Turner,Edwin L. Turner,Tomohisa Uchida,Hisakazu Uchiyama,Keiichi Umetsu,Fumihiro Uraguchi,Yuji Urata,Tomonori Usuda,Yousuke Utsumi,Shiang-Yu Wang,Wei-Hao Wang,Kenneth C. Wong,Kiyoto Yabe,Yoshihiko Yamada,Hitomi Yamanoi,Naoki Yasuda,Sherry Yeh,Atsunori Yonehara,Suraphong Yuma +170 more
TL;DR: Hyper Suprime-Cam (HSC) is a wide-field imaging camera on the prime focus of the 8.2m Subaru telescope on the summit of Maunakea as mentioned in this paper.
Journal ArticleDOI
A magnified young galaxy from about 500 million years after the Big Bang
Wei Zheng,Marc Postman,Adi Zitrin,John Moustakas,Xinwen Shu,Stephanie Jouvel,O. Host,Alberto Molino,Larry Bradley,Dan Coe,Leonidas A. Moustakas,Mauricio Carrasco,H. Ford,Narciso Benítez,Tod R. Lauer,Stella Seitz,Rychard Bouwens,Anton M. Koekemoer,Elinor Medezinski,Matthias Bartelmann,Tom Broadhurst,Tom Broadhurst,Megan Donahue,Claudio Grillo,Leopoldo Infante,Saurabh Jha,Daniel D. Kelson,Ofer Lahav,D. Lemze,Peter Melchior,Massimo Meneghetti,Julian Merten,Mario Nonino,Sara Ogaz,Piero Rosati,Keiichi Umetsu,Arjen van der Wel +36 more
TL;DR: In this paper, the authors report multiband observations of the cluster MACS J1149+2223 that have revealed (with high probability) a gravitationally magnified galaxy from the early Universe, at a redshift of z = 9.6 − 0.2 (that is, a cosmic age of 490 − 15 million years, or 3.6 per cent of the age of the Universe).