T
Tetsuya Hashimoto
Researcher at National Tsing Hua University
Publications - 100
Citations - 1790
Tetsuya Hashimoto is an academic researcher from National Tsing Hua University. The author has contributed to research in topics: Galaxy & Redshift. The author has an hindex of 17, co-authored 78 publications receiving 1553 citations. Previous affiliations of Tetsuya Hashimoto include University of Tokyo & National Chung Hsing University.
Papers
More filters
Journal ArticleDOI
A galaxy at a redshift z = 6.96
Masanori Iye,Masanori Iye,Kazuaki Ota,Nobunari Kashikawa,Hisanori Furusawa,Tetsuya Hashimoto,Takashi Hattori,Yuichi Matsuda,Tomoki Morokuma,Masami Ouchi,Kazuhiro Shimasaku +10 more
TL;DR: A spectroscopic redshift of z = 6.96 is reported for a galaxy whose spectrum clearly shows Lyman-α emission at 9,682 Å, indicating active star formation at a rate of ∼10M[circdot] yr-1, which demonstrates that galaxy formation was under way when the Universe was only ∼6 per cent of its present age.
Journal ArticleDOI
The Reionization and Galaxy Evolution Probed by z=7 Lyman Alpha Emitters
Kazuaki Ota,Masanori Iye,Nobunari Kashikawa,Kazuhiro Shimasaku,Masakazu A. R. Kobayashi,Tomonori Totani,Masahiro Nagashima,Tomoki Morokuma,Hisanori Furusawa,Takashi Hattori,Yuichi Matsuda,Tetsuya Hashimoto,Masami Ouchi +12 more
TL;DR: In this paper, the authors made a narrowband NB973 imaging of the Subaru Deep Field (SDF) and found two z=7 Lyman alpha emitter (LAE) candidates down to NB 973=24.
Journal ArticleDOI
Reionization and Galaxy Evolution Probed by z = 7 Lyα Emitters*
Kazuaki Ota,Masanori Iye,Masanori Iye,Nobunari Kashikawa,Kazuhiro Shimasaku,Masakazu A. R. Kobayashi,Tomonori Totani,Masahiro Nagashima,Tomoki Morokuma,Hisanori Furusawa,Takashi Hattori,Yuichi Matsuda,Tetsuya Hashimoto,Masami Ouchi +13 more
TL;DR: In this paper, a narrowband NB973 imaging of the Subaru Deep Field (SDF) was performed and two candidates were identified as a real -->z = 6.96 LAE.
Journal ArticleDOI
Probing intergalactic neutral hydrogen by the Lyman alpha red damping wing of gamma-ray burst 130606A afterglow spectrum at z = 5.913
Tomonori Totani,Kentaro Aoki,Takashi Hattori,George Kosugi,Yuu Niino,Tetsuya Hashimoto,Nobuyuki Kawai,Kouji Ohta,T. Sakamoto,Toru Yamada +9 more
TL;DR: In this article, the authors present an analysis of the red Lyα damping wing of the afterglow spectrum taken by Subaru/FOCAS during 10.4-13.2hr after the burst.
Journal ArticleDOI
Two γ-ray bursts from dusty regions with little molecular gas
B. Hatsukade,Kunihiro Ohta,Akira Endo,K. Nakanishi,Yoichi Tamura,Tetsuya Hashimoto,Kotaro Kohno +6 more
TL;DR: Spatially resolved observations of CO line emission and millimetre-wavelength continuum emission in two galaxies hosting γ-ray bursts are reported, suggesting that much of the dense gas where stars form has been dissipated by other massive stars.