Zobrazeno 1 - 10
of 60
pro vyhledávání: '"Haruka Kusakabe"'
Autor:
Shun Hatano, Masami Ouchi, Hiroya Umeda, Kimihiko Nakajima, Toshihiro Kawaguchi, Yuki Isobe, Shohei Aoyama, Kuria Watanabe, Yuichi Harikane, Haruka Kusakabe, Akinori Matsumoto, Takashi J. Moriya, Moka Nishigaki, Yoshiaki Ono, Masato Onodera, Yuma Sugahara, Akihiro Suzuki, Yi Xu, Yechi Zhang
Publikováno v:
The Astrophysical Journal, Vol 966, Iss 2, p 170 (2024)
We present ionizing spectra estimated at 13.6–100 eV for 10 dwarf galaxies with strong high-ionization lines of He ii λ 4686 and [Ne v ] λ 3426 ([Ne iv ] λ 2424) at z = 0 ( z = 8) that are identified in our Keck/LRIS spectroscopy and the literat
Externí odkaz:
https://doaj.org/article/4802614fdb8d4f74856dc35a64b04595
Autor:
Kuria Watanabe, Masami Ouchi, Kimihiko Nakajima, Yuki Isobe, Nozomu Tominaga, Akihiro Suzuki, Miho N. Ishigaki, Ken’ichi Nomoto, Koh Takahashi, Yuichi Harikane, Shun Hatano, Haruka Kusakabe, Takashi J. Moriya, Moka Nishigaki, Yoshiaki Ono, Masato Onodera, Yuma Sugahara
Publikováno v:
The Astrophysical Journal, Vol 962, Iss 1, p 50 (2024)
We present gas-phase elemental abundance ratios of thirteen local extremely metal-poor galaxies (EMPGs), including our new Keck/LRIS spectroscopy determinations together with 33 James Webb Space Telescope z ∼ 4–10 star-forming galaxies in the lit
Externí odkaz:
https://doaj.org/article/6635069359c34b39a702013d4d0143f9
Autor:
Yi Xu, Masami Ouchi, Yuki Isobe, Kimihiko Nakajima, Shinobu Ozaki, Nicolas F. Bouché, John H. Wise, Eric Emsellem, Haruka Kusakabe, Takashi Hattori, Tohru Nagao, Gen Chiaki, Hajime Fukushima, Yuichi Harikane, Kohei Hayashi, Yutaka Hirai, Ji Hoon Kim, Michael V. Maseda, Kentaro Nagamine, Takatoshi Shibuya, Yuma Sugahara, Hidenobu Yajima, Shohei Aoyama, Seiji Fujimoto, Keita Fukushima, Shun Hatano, Akio K. Inoue, Tsuyoshi Ishigaki, Masahiro Kawasaki, Takashi Kojima, Yutaka Komiyama, Shuhei Koyama, Yusei Koyama, Chien-Hsiu Lee, Akinori Matsumoto, Ken Mawatari, Takashi J. Moriya, Kentaro Motohara, Kai Murai, Moka Nishigaki, Masato Onodera, Yoshiaki Ono, Michael Rauch, Tomoki Saito, Rin Sasaki, Akihiro Suzuki, Tsutomu T. Takeuchi, Hiroya Umeda, Masayuki Umemura, Kuria Watanabe, Kiyoto Yabe, Yechi Zhang
Publikováno v:
The Astrophysical Journal, Vol 961, Iss 1, p 49 (2024)
We present the demography of the dynamics and gas mass fraction of 33 extremely metal-poor galaxies (EMPGs) with metallicities of 0.015–0.195 Z _⊙ and low stellar masses of 10 ^4 –10 ^8 M _⊙ in the local universe. We conduct deep optical inte
Externí odkaz:
https://doaj.org/article/676be6f7cd2249aeae362e439f3fe5f9
Autor:
Michael V. Maseda, Zach Lewis, Jorryt Matthee, Joseph F. Hennawi, Leindert Boogaard, Anna Feltre, Themiya Nanayakkara, Roland Bacon, Amy Barger, Jarle Brinchmann, Marijn Franx, Takuya Hashimoto, Hanae Inami, Haruka Kusakabe, Floriane Leclercq, Lucie Rowland, Anthony J. Taylor, Christy Tremonti, Tanya Urrutia, Joop Schaye, Charlotte Simmonds, Eloïse Vitte
Publikováno v:
The Astrophysical Journal, Vol 956, Iss 1, p 11 (2023)
Deep Very Large Telescope/MUSE optical integral field spectroscopy has recently revealed an abundant population of ultra-faint galaxies ( M _UV ≈ −15; 0.01 L _⋆ ) at z = 2.9−6.7 due to their strong Ly α emission with no detectable continuum.
Externí odkaz:
https://doaj.org/article/101cf01c5e4f47059551c6ba4d78dd37
Autor:
Satoshi Kikuta, Masami Ouchi, Takatoshi Shibuya, Yongming Liang, Hiroya Umeda, Akinori Matsumoto, Kazuhiro Shimasaku, Yuichi Harikane, Yoshiaki Ono, Akio K. Inoue, Satoshi Yamanaka, Haruka Kusakabe, Rieko Momose, Nobunari Kashikawa, Yuichi Matsuda, Chien-Hsiu Lee
Publikováno v:
The Astrophysical Journal Supplement Series, Vol 268, Iss 1, p 24 (2023)
We present 20,567 Ly α emitters (LAEs) at z = 2.2 − 7.3 that are photometrically identified by the SILVERRUSH program in a large survey area up to 25 deg ^2 with deep images of five broadband filters ( grizy ) and seven narrowband filters targetin
Externí odkaz:
https://doaj.org/article/a1ae859b35a748c3bf6316bcd0a50cf9
Autor:
Moka Nishigaki, Masami Ouchi, Kimihiko Nakajima, Yoshiaki Ono, Michael Rauch, Yuki Isobe, Yuichi Harikane, Kanako Narita, Fakhri Zahedy, Yi Xu, Hidenobu Yajima, Hajime Fukushima, Yutaka Hirai, Ji Hoon Kim, Shigeki Inoue, Haruka Kusakabe, Chien-Hsiu Lee, Tohru Nagao, Masato Onodera
Publikováno v:
The Astrophysical Journal, Vol 952, Iss 1, p 11 (2023)
We search for local extremely metal-poor galaxies (EMPGs), selecting photometric candidates by broadband color excess and machine-learning techniques with the SDSS photometric data. After removing stellar contaminants by shallow spectroscopy with Sei
Externí odkaz:
https://doaj.org/article/5629754457f54d329a7f8145f8a7eda3
Autor:
Yuki Isobe, Masami Ouchi, Kimihiko Nakajima, Shinobu Ozaki, Nicolas F. Bouché, John H. Wise, Yi Xu, Eric Emsellem, Haruka Kusakabe, Takashi Hattori, Tohru Nagao, Gen Chiaki, Hajime Fukushima, Yuichi Harikane, Kohei Hayashi, Yutaka Hirai, Ji Hoon Kim, Michael V. Maseda, Kentaro Nagamine, Takatoshi Shibuya, Yuma Sugahara, Hidenobu Yajima, Shohei Aoyama, Seiji Fujimoto, Keita Fukushima, Shun Hatano, Akio K. Inoue, Tsuyoshi Ishigaki, Masahiro Kawasaki, Takashi Kojima, Yutaka Komiyama, Shuhei Koyama, Yusei Koyama, Chien-Hsiu Lee, Akinori Matsumoto, Ken Mawatari, Takashi J. Moriya, Kentaro Motohara, Kai Murai, Moka Nishigaki, Masato Onodera, Yoshiaki Ono, Michael Rauch, Tomoki Saito, Rin Sasaki, Akihiro Suzuki, Tsutomu T. Takeuchi, Hiroya Umeda, Masayuki Umemura, Kuria Watanabe, Kiyoto Yabe, Yechi Zhang
Publikováno v:
The Astrophysical Journal, Vol 951, Iss 2, p 102 (2023)
We present kinematics of six local extremely metal-poor galaxies (EMPGs) with low metallicities (0.016–0.098 Z _⊙ ) and low stellar masses (10 ^4.7 –10 ^7.6 M _⊙ ). Taking deep medium/high-resolution ( R ∼ 7500) integral-field spectra with
Externí odkaz:
https://doaj.org/article/ecaf49e39cde4e3b8fd3e73fb1e4c8c2
Autor:
Yucheng Guo, Roland Bacon, Nicolas Bouché, Lutz Wisotzki, Joop Schaye, Jérémy Blaizot, Anne Verhamme, Sebastiano Cantalupo, Leindert Boogaard, Jarle Brinchmann, Maxime Cherrey, Haruka Kusakabe, Ivanna Langan, Floriane Leclercq, Jorryt Matthee, Léo Michel-Dansac, Ilane Schroetter, Martin Wendt
Galactic outflows are believed to play a critical role in the evolution of galaxies by regulating their mass build-up and star formation [1]. These outflows tend to form bipolar shapes above and below the galactic planes and extend well into the circ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9e6fb6818015e5401bdbbb810bf4fa55
https://doi.org/10.21203/rs.3.rs-2617315/v1
https://doi.org/10.21203/rs.3.rs-2617315/v1
Autor:
Akinori Matsumoto, Masami Ouchi, Kimihiko Nakajima, Masahiro Kawasaki, Kai Murai, Kentaro Motohara, Yuichi Harikane, Yoshiaki Ono, Kosuke Kushibiki, Shuhei Koyama, Shohei Aoyama, Masahiro Konishi, Hidenori Takahashi, Yuki Isobe, Hiroya Umeda, Yuma Sugahara, Masato Onodera, Kentaro Nagamine, Haruka Kusakabe, Yutaka Hirai, Takashi J. Moriya, Takatoshi Shibuya, Yutaka Komiyama, Keita Fukushima, Seiji Fujimoto, Takashi Hattori, Kohei Hayashi, Akio K. Inoue, Shotaro Kikuchihara, Takashi Kojima, Yusei Koyama, Chien-Hsiu Lee, Ken Mawatari, Takashi Miyata, Tohru Nagao, Shinobu Ozaki, Michael Rauch, Tomoki Saito, Akihiro Suzuki, Tsutomu T. Takeuchi, Masayuki Umemura, Yi Xu, Kiyoto Yabe, Yechi Zhang, Yuzuru Yoshii
Publikováno v:
Matsumoto, A, Ouchi, M, Nakajima, K, Kawasaki, M, Murai, K, Motohara, K, Harikane, Y, Ono, Y, Kushibiki, K, Koyama, S, Aoyama, S, Konishi, M, Takahashi, H, Isobe, Y, Umeda, H, Sugahara, Y, Onodera, M, Nagamine, K, Kusakabe, H, Hirai, Y, Moriya, T J, Shibuya, T, Komiyama, Y, Fukushima, K, Fujimoto, S, Hattori, T, Hayashi, K, Inoue, A K, Kikuchihara, S, Kojima, T, Koyama, Y, Lee, C H, Mawatari, K, Miyata, T, Nagao, T, Ozaki, S, Rauch, M, Saito, T, Suzuki, A, Takeuchi, T T, Umemura, M, Xu, Y, Yabe, K, Zhang, Y & Yoshii, Y 2022, ' EMPRESS. VIII. A New Determination of Primordial He Abundance with Extremely Metal-poor Galaxies : A Suggestion of the Lepton Asymmetry and Implications for the Hubble Tension ', Astrophysical Journal, vol. 941, no. 2, 167 . https://doi.org/10.3847/1538-4357/ac9ea1
The primordial He abundance $Y_\mathrm{P}$ is a powerful probe of cosmology. Currently, $Y_\mathrm{P}$ is best determined by observations of metal-poor galaxies, while there are only a few known local extremely metal-poor ($
Comment: 22 pages, 9
Comment: 22 pages, 9
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::88e261c0ef080063285ea705fcd335de
http://arxiv.org/abs/2203.09617
http://arxiv.org/abs/2203.09617
Autor:
Daniel Lam, Jarle Brinchmann, Takuya Hashimoto, Roland Bacon, Ivo Labbé, Guillaume Mahler, Marijn Franx, Rychard Bouwens, Johan Richard, Kasper B. Schmidt, Haruka Kusakabe, Themiya Nanayakkara, Jorryt Matthee, Lutz Wisotzki, Joop Schaye, Sebastiano Cantalupo, Michael V. Maseda, Leindert Boogaard, Hanae Inami
Publikováno v:
Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, 2020, 493, pp.5120-5130. ⟨10.1093/mnras/staa622⟩
Monthly Notices of the Royal Astronomical Society, 493(4), 5120-5130
Monthly Notices of the Royal Astronomical Society, 493 (4)
Monthly Notices of the Royal Astronomical Society, 2020, 493, pp.5120-5130. ⟨10.1093/mnras/staa622⟩
Monthly Notices of the Royal Astronomical Society, 493(4), 5120-5130
Monthly Notices of the Royal Astronomical Society, 493 (4)
While low-luminosity galaxies dominate number counts at all redshifts, their contribution to cosmic reionization is poorly understood due to a lack of knowledge of their physical properties. We isolate a sample of 35 z ≈ 4–5 continuum-faint Lyman