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Results 1 - 15 of 15

EMPRESS. X. Spatially resolved mass-metallicity relation in extremely metal-poor galaxies: evidence of episodic star-formation fueled by a metal-poor gas infall
- Virtual Journal - Volume 22, Issue 50 - article #4
- Kimihiko Nakajima, Masami Ouchi, Yuki Isobe, Yi Xu, Shinobu Ozaki, Tohru Nagao, Akio K. Inoue, Michael Rauch, Haruka Kusakabe, Masato Onodera, Moka Nishigaki, Yoshiaki Ono, Yuma Sugahara, Takashi Hattori, Yutaka Hirai, Takuya Hashimoto, Ji Hoon Kim, Takashi J. Moriya, Hiroto Yanagisawa, Shohei Aoyama, Seiji Fujimoto, Hajime Fukushima, Keita Fukushima, Yuichi Harikane, Shun Hatano, Kohei Hayashi, Tsuyoshi Ishigaki, Masahiro Kawasaki, Takashi Kojima, Yutaka Komiyama, Shuhei Koyama, Yusei Koyama, Chien-Hsiu Lee, Akinori Matsumoto, Ken Mawatari, Kentaro Motohara, Kai Murai, Kentaro Nagamine, Minami Nakane, Tomoki Saito, Rin Sasaki, Takatoshi Shibuya, Akihiro Suzuki, Tsutomu T. Takeuchi, Hiroya Umeda, Masayuki Umemura, Kuria Watanabe, Kiyoto Yabe, Hidenobu Yajima, Yechi Zhang
- https://arxiv.org/abs/2412.04541
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. (arXiv:2203.09617v2 [astro-ph.CO] UPDATED)
- Virtual Journal - Volume 20, Issue 35 - article #3
- 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
- http://arxiv.org/abs/2203.09617
EMPRESS. II. Highly Fe-enriched Metal-poor Galaxies with âˆ¼1.0 (Fe/O) âŠ™ and 0.02 (O/H) âŠ™ : Possible Traces of Supermassive (>300 M âŠ™ ) Stars in Early Galaxies
- Virtual Journal - Volume 19, Issue 21 - article #33
- Takashi Kojima, Masami Ouchi, Michael Rauch, Yoshiaki Ono, Kimihiko Nakajima, Yuki Isobe, Seiji Fujimoto, Yuichi Harikane, Takuya Hashimoto, Masao Hayashi, Yutaka Komiyama, Haruka Kusakabe, Ji Hoon Kim, Chien-Hsiu Lee, Shiro Mukae, Tohru Nagao, Masato Onodera, Takatoshi Shibuya, Yuma Sugahara, Masayuki Umemura,, Kiyoto Yabe
- The Astrophysical Journal
- http://iopscience.iop.org/0004-637X/913/1/22
The impact of a supernova explosion in a very massive binary
- Virtual Journal - Volume 6, Issue 40 - article #13
- Jun'ichi Sato, Masayuki Umemura, Keisuke Sawada
- Monthly Notices of the Royal Astronomical Society - Volume: 387, Issue: 4
- Abstract | References | Full Text: HTML, PDF (Size: 3148K)
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Secondary Star Formation in a Population III Object
- Virtual Journal - Volume 4, Issue 28 - article #10
- Hajime Susa and Masayuki Umemura
- Astrophysical Journal Letters - Volume 645, Issue 2 - July, 2006
- ABSTRACT, FULL TEXT, PDF (1084 kB), PS
Secondary Star Formation in a Population III Object
- Virtual Journal - Volume 4, Issue 16 - article #6
- Hajime Susa, Masayuki Umemura
- ArXiv - Astrophysics
- astro-ph/0604423 [abs, ps, pdf, other]
Early metal enrichment and Lyman α emission
- Virtual Journal - Volume 4, Issue 7 - article #31
- Masao Mori and Masayuki Umemura
- New Astronomy Reviews - Volume 50 Issue 1 - 3
- SummaryPlus, Full Text + Links, PDF (312 K)
Formation of Massive Black Holes in Globular Clusters
- Virtual Journal - Volume 3, Issue 30 - article #29
- Nozomu Kawakatu and Masayuki Umemura
- Astrophysical Journal – Vol. 628, No. 2 – July 2005
- ABSTRACT , FULL TEXT , PDF (292 kB), PS
The Formation of Population III Binaries
- Virtual Journal - Volume 2, Issue 44 - article #26
- Kazuya Saigo (1), Tomoaki Matsumoto (2), Masayuki Umemura (3) ((1)National Astronomical Observatory of Japan, (2)Hosei Univ., (3) Tsukuba Univ.)
- arXiv - Astrophysics – November 2004
- astro-ph/0410733 [ abs , ps , pdf , other ]
The Formation of Population III Binaries
- Virtual Journal - Volume 2, Issue 43 - article #38
- Kazuya Saigo, Tomoaki Matsumoto, and Masayuki Umemura
- Astrophysical Journal Letters – Vol 615, No 2 – October 2004
- ABSTRACT , FULL TEXT , PDF (792 kB), PS
The Structure and Evolution of Early Cosmological H II Regions
- Virtual Journal - Volume 2, Issue 39 - article #56
- Tetsu Kitayama, Naoki Yoshida, Hajime Susa, and Masayuki Umemura
- Astrophysical Journal – Vol 613, No 2 – October 2004
- ABSTRACT , FULL TEXT WITH ENHANCEMENTS , PDF (396 kB), PS
The Nature of Ly Blobs: Supernova-dominated Primordial Galaxies
- Virtual Journal - Volume 2, Issue 37 - article #33
- Masao Mori, Masayuki Umemura, and Andrea Ferrara
- Astrophysical Journal Letters – Vol 613, No 2 – September 2004
- ABSTRACT , FULL TEXT , PDF (335 kB), PS
The Nature of Lya Blobs: Supernova-Dominated Primordial Galaxies
- Virtual Journal - Volume 2, Issue 34 - article #16
- Masao Mori, Masayuki Umemura, Andrea Ferrara
- arXiv - Astrophysics - August 2004
- astro-ph/0408410 [ abs , ps , pdf , other ]
Effects of Early Cosmic Reionization on the Substructure Problem in Galactic Halo
- Virtual Journal - Volume 2, Issue 24 - article #8
- Hajime Susa, Masayuki Umemura
- arXiv.org - Astrophysics – June 2004
- astro-ph/0406305 [ abs , ps , pdf , other ]
Formation of Dwarf Galaxies during the Cosmic Reionization
- Virtual Journal - Volume 2, Issue 2 - article #38
- Hajime Susa and Masayuki Umemura
- The Astrophysical Journal - Volume 600, Number 1, Part 1
- ABSTRACT , FULL TEXT , PDF (1910kb), PS

Results 1 - 15 of 15

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