Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Masayuki Akiya"'
Publikováno v:
The Kitakanto Medical Journal. 72:35-42
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::663421eba1e1b0ad2c059e7edb81ef60
https://doi.org/10.2974/kmj.72.35
https://doi.org/10.2974/kmj.72.35
Autor:
Masayuki Akiya, Toshiyuki Mori, Masaharu Kogure, Yutaka Suzuki, Yoshihiro Sakamoto, Ryota Matsuki
Publikováno v:
Nihon Rinsho Geka Gakkai Zasshi (Journal of Japan Surgical Association). 81:1611-1615
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::034f55184c5760770c34c30fe8bb8bad
https://doi.org/10.3919/jjsa.81.1611
https://doi.org/10.3919/jjsa.81.1611
Autor:
Yoshiki Matsuoka, Takuma Izumi, Masafusa Onoue, Michael A. Strauss, Kazushi Iwasawa, Nobunari Kashikawa, Masayuki Akiyama, Kentaro Aoki, Junya Arita, Masatoshi Imanishi, Rikako Ishimoto, Toshihiro Kawaguchi, Kotaro Kohno, Chien-Hsiu Lee, Tohru Nagao, John D. Silverman, Yoshiki Toba
Publikováno v:
The Astrophysical Journal Letters, Vol 965, Iss 1, p L4 (2024)
We report the discovery of two quasars at a redshift of z = 6.05 in the process of merging. They were serendipitously discovered from the deep multiband imaging data collected by the Hyper Suprime-Cam (HSC) Subaru Strategic Program survey. The quasar
Externí odkaz:
https://doaj.org/article/213483deef95490b82e7f2c75e4f0c89
Autor:
Kianhong Lee, Masayuki Akiyama, Kotaro Kohno, Daisuke Iono, Masatoshi Imanishi, Bunyo Hatsukade, Hideki Umehata, Tohru Nagao, Yoshiki Toba, Xiaoyang Chen, Fumi Egusa, Kohei Ichikawa, Takuma Izumi, Naoki Matsumoto, Malte Schramm, Kenta Matsuoka
Publikováno v:
The Astrophysical Journal, Vol 972, Iss 1, p 111 (2024)
We present Atacama Large Millimeter/submillimeter Array observations of the [C ii ] 158 μ m line and the underlying continuum emission of TN J0924−2201, which is one of the most distant known radio galaxies at z > 5. The [C ii ] line and 1 mm cont
Externí odkaz:
https://doaj.org/article/6d60473d18c74ebf8b0a63bdd63bc2db
Autor:
Wenxiu Li, Kohei Inayoshi, Masafusa Onoue, Wanqiu He, Yoshiki Matsuoka, Zhiwei Pan, Masayuki Akiyama, Takuma Izumi, Tohru Nagao
Publikováno v:
The Astrophysical Journal, Vol 969, Iss 1, p 69 (2024)
The evolution of the quasar luminosity function (QLF) is fundamental to understanding the cosmic evolution of black holes (BHs) through their accretion phases. In the era of the James Webb Space Telescope (JWST), Euclid, and Nancy Grace Roman Space T
Externí odkaz:
https://doaj.org/article/406c54dcd9b641c28c087f04c8a59a0c
Autor:
Ayumi Takahashi, Yoshiki Matsuoka, Masafusa Onoue, Michael A. Strauss, Nobunari Kashikawa, Yoshiki Toba, Kazushi Iwasawa, Masatoshi Imanishi, Masayuki Akiyama, Toshihiro Kawaguchi, Akatoki Noboriguchi, Chien-Hsiu Lee
Publikováno v:
The Astrophysical Journal, Vol 960, Iss 2, p 112 (2024)
We report the distribution of black hole (BH) masses and Eddingont ratios estimated for a sample of 131 low luminosity quasars in the early cosmic epoch (5.6 < z < 7.0). Our work is based on the Subaru High- z Exploration of Low-Luminosity Quasars (S
Externí odkaz:
https://doaj.org/article/3265292c992d429caa4b0aeedfa67a71
Autor:
Juan Pablo Alfonzo, Kartheik G. Iyer, Masayuki Akiyama, Greg L. Bryan, Suchetha Cooray, Eric Ludwig, Lamiya Mowla, Kiyoaki C. Omori, Camilla Pacifici, Joshua S. Speagle, John F. Wu
Publikováno v:
The Astrophysical Journal, Vol 967, Iss 2, p 152 (2024)
The physical processes responsible for shaping how galaxies form and quench over time leave imprints on both the spatial (galaxy morphology) and temporal (star formation history; SFH) tracers that we use to study galaxies. While the morphology–SFR
Externí odkaz:
https://doaj.org/article/8d25ac3987e9470c97178c473ea8e1c1
Autor:
Wanqiu He, Masayuki Akiyama, Motohiro Enoki, Kohei Ichikawa, Kohei Inayoshi, Nobunari Kashikawa, Toshihiro Kawaguchi, Yoshiki Matsuoka, Tohru Nagao, Masafusa Onoue, Taira Oogi, Andreas Schulze, Yoshiki Toba, Yoshihiro Ueda
Publikováno v:
The Astrophysical Journal, Vol 962, Iss 2, p 152 (2024)
We investigate the black hole mass function (BHMF) and Eddington-ratio distribution function (ERDF) of broad-line active galactic nuclei (AGNs) at z = 4, based on a sample of 52 quasars with i < 23.2 at 3.50 ≤ z ≤ 4.25 from the Hyper Suprime-Cam
Externí odkaz:
https://doaj.org/article/39821e42972f411daa82afbfa89a8b69
Autor:
Yoshiki Matsuoka, Masafusa Onoue, Kazushi Iwasawa, Michael A. Strauss, Nobunari Kashikawa, Takuma Izumi, Tohru Nagao, Masatoshi Imanishi, Masayuki Akiyama, John D. Silverman, Naoko Asami, James Bosch, Hisanori Furusawa, Tomotsugu Goto, James E. Gunn, Yuichi Harikane, Hiroyuki Ikeda, Kohei Inayoshi, Rikako Ishimoto, Toshihiro Kawaguchi, Satoshi Kikuta, Kotaro Kohno, Yutaka Komiyama, Chien-Hsiu Lee, Robert H. Lupton, Takeo Minezaki, Satoshi Miyazaki, Hitoshi Murayama, Atsushi J. Nishizawa, Masamune Oguri, Yoshiaki Ono, Taira Oogi, Masami Ouchi, Paul A. Price, Hiroaki Sameshima, Naoshi Sugiyama, Philip J. Tait, Masahiro Takada, Ayumi Takahashi, Tadafumi Takata, Masayuki Tanaka, Yoshiki Toba, Shiang-Yu Wang, Takuji Yamashita
Publikováno v:
The Astrophysical Journal Letters, Vol 949, Iss 2, p L42 (2023)
We present the quasar luminosity function (LF) at z = 7, measured with 35 spectroscopically confirmed quasars at 6.55 < z < 7.15. The sample of 22 quasars from the Subaru High- z Exploration of Low-Luminosity Quasars (SHELLQs) project, combined with
Externí odkaz:
https://doaj.org/article/58ac7e9877d440c7934997f0f2835f1d
Autor:
Fumikazu Ikemori, Rie Nishimura, Shinji Saito, Masayuki Akiyama, Shigekazu Yamamoto, Akihiro Iijima, Seiji Sugata
Publikováno v:
Atmosphere, Vol 12, Iss 5, p 579 (2021)
To understand the characteristics of secondary organic aerosols (SOAs) and estimate their impact on water-soluble organic carbon (WSOC) in urban areas in Japan, we measured 17 organic tracers using gas chromatography–mass spectrometry from particul
Externí odkaz:
https://doaj.org/article/9ddb6bbff2ce47f9a461bac27d3ebe3b