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Results 1 - 26 of 26

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
Big-bang nucleosynthesis with sub-GeV massive decaying particles. (arXiv:2006.14803v1 [hep-ph])
- Virtual Journal - Volume 18, Issue 27 - article #1
- Masahiro Kawasaki, Kazunori Kohri, Takeo Moroi, Kai Murai, Hitoshi Murayama
- http://arxiv.org/abs/2006.14803
Big Bang Nucleosynthesis Constraint on Baryonic Isocurvature Perturbations. (arXiv:1806.00123v1 [astro-ph.CO])
- Virtual Journal - Volume 16, Issue 23 - article #2
- Keisuke Inomata, Masahiro Kawasaki, Alexander Kusenko, Louis Yang
- http://arxiv.org/abs/1806.00123
Revisiting Big-Bang Nucleosynthesis Constraints on Long-Lived Decaying Particles. (arXiv:1709.01211v1 [hep-ph])
- Virtual Journal - Volume 15, Issue 36 - article #10
- Masahiro Kawasaki, Kazunori Kohri, Takeo Moroi, Yoshitaro Takaesu
- http://arxiv.org/abs/1709.01211
Revisiting constraints on small scale perturbations from big-bang nucleosynthesis. (arXiv:1605.04646v2 [astro-ph.CO] UPDATED)
- Virtual Journal - Volume 14, Issue 35 - article #14
- Keisuke Inomata, Masahiro Kawasaki, Yuichiro Tada
- http://arxiv.org/abs/1605.04646
Revisiting Big-Bang Nucleosynthesis Constraints on Dark-Matter Annihilation
- Virtual Journal - Volume 13, Issue 34 - article #15
- Masahiro Kawasaki, Kazunori Kohri, Takeo Moroi, Yoshitaro Takaesu
- arXiv.org - Astrophysics - Volume: 2015, Issue: 18 Sep
- arXiv:1509.03665 (cross-list from hep-ph) [pdf, ps, other]
Chemical separation of primordial Li⁺ during structure formation caused by nanogauss magnetic field
- Virtual Journal - Volume 12, Issue 25 - article #62
- Motohiko Kusakabe and Masahiro Kawasaki
- Monthly Notices of the Royal Astronomical Society - Volume: 446, Issue: 2
- Abstract Full Text (HTML) Full Text (PDF)
Production of ⁹Be through the α-fusion Reaction of Metal-poor Cosmic Rays and Stellar Flares
- Virtual Journal - Volume 11, Issue 13 - article #26
- Motohiko Kusakabe and Masahiro Kawasaki
- The Astrophysical Journal - Volume: 767, Issue: 1
- Abstract References Full text PDF (728 KB) Enhanced article HTML
Updated constraint on a primordial magnetic field during big bang nucleosynthesis and a formulation of field effects
- Virtual Journal - Volume 10, Issue 40 - article #56
- Masahiro Kawasaki and Motohiko Kusakabe
- Physical Review D - Volume: 86, Issue: 6
- 063003 [View PDF (693 kB)]
Production of 9Be through alpha-fusion reaction of metal-poor cosmic ray and stellar flare
- Virtual Journal - Volume 10, Issue 34 - article #11
- Motohiko Kusakabe, Masahiro Kawasaki
- arXiv.org - Astrophysics - Volume: 2012, Issue: 24 Aug
- arXiv:1208.4210 [pdf, ps, other]
Big-bang nucleosynthesis and gravitinos
- Virtual Journal - Volume 6, Issue 41 - article #16
- Masahiro Kawasaki, Kazunori Kohri, Takeo Moroi, and Akira Yotsuyanagi
- Physical Review D - Volume: 78, Issue: 6
- 065011 Abstract/References Full Text: [ PDF (916 kB) GZipped PS Buy Article ]
Solving the cosmic lithium problems with primordial late-decaying particles
- Virtual Journal - Volume 6, Issue 15 - article #23
- Daniel Cumberbatch, Kazuhide Ichikawa, Masahiro Kawasaki, Kazunori Kohri, Joseph Silk, and Glenn D. Starkman
- Physical Review D - Volume: 76, Issue: 12
- 123005 Abstract/References Full Text: [ PDF (381 kB) GZipped PS Buy Article ]
Solving the cosmic lithium problems with primordial late-decaying particles
- Virtual Journal - Volume 5, Issue 31 - article #23
- Daniel Cumberbatch, Kazuhide Ichikawa, Masahiro Kawasaki, Kazunori Kohri, Joseph Silk, Glenn D. Starkman
- ArXiv - Astrophysics
- arXiv:0708.0095 [ps, pdf, other]
Big-Bang Nucleosynthesis with Long-Lived Charged Slepton
- Virtual Journal - Volume 5, Issue 11 - article #21
- Masahiro Kawasaki, Kazunori Kohri, Takeo Moroi
- ArXiv - Astrophysics
- hep-ph/0703122 [abs, ps, pdf, other]
Limit on the Neutrino Mass from the WMAP Three Year Data
- Virtual Journal - Volume 4, Issue 20 - article #8
- Masataka Fukugita, Kazuhide Ichikawa, Masahiro Kawasaki, Ofer Lahav
- ArXiv - Astrophysics
- astro-ph/0605362 [abs, ps, pdf, other]
Primordial Helium Abundance: A Reanalysis of the Izotov-Thuan Spectroscopic Sample
- Virtual Journal - Volume 4, Issue 11 - article #7
- Masataka Fukugita, Masahiro Kawasaki
- ArXiv - Astrophysics
- astro-ph/0603334 [abs, ps, pdf, other]
Adronic decay of late-decaying particles and big-bang nucleosynthesis
- Virtual Journal - Volume 3, Issue 37 - article #56
- Masahiro Kawasaki, Kazunori Kohri and Takeo Moroi
- Physics Letters B - Vol.625 Issues 1-2 pp.7-12 – October 2005
- SummaryPlus , Full Text + Links , PDF (135 K)
Constraining neutrino masses by CMB experiments alone
- Virtual Journal - Volume 3, Issue 9 - article #47
- Kazuhide Ichikawa, Masataka Fukugita, and Masahiro Kawasaki
- Physical Review D - Volume 71, Number 4 – March 2005
- Abstract/References Full Text: [ PDF (283 kB) GZipped PS Order Document ]
Constraining Neutrino Masses by CMB Experiments Alone
- Virtual Journal - Volume 2, Issue 39 - article #7
- Kazuhide Ichikawa, Masataka Fukugita, Masahiro Kawasaki
- arXiv - Astrophysics – October 2004
- astro-ph/0409768 [ abs , ps , pdf , other ]
Big-Bang Nucleosynthesis and Hadronic Decay of Long-Lived Massive Particles
- Virtual Journal - Volume 2, Issue 34 - article #13
- Masahiro Kawasaki, Kazunori Kohri, Takeo Moroi
- arXiv - Astrophysics - August 2004
- astro-ph/0408426 [ abs , ps , pdf , other ]
Solving the discrepancy among the light elements abundances and WMAP
- Virtual Journal - Volume 2, Issue 31 - article #31
- Kazuhide Ichikawa, Masahiro Kawasaki and Fuminobu Takahashi
- Physics Letters B – Vol 597, No 1 – August 2004
- http://dx.doi.org/10.1016/j.physletb.2004.07.011
Solving the discrepancy among the light elements abundances and WMAP
- Virtual Journal - Volume 2, Issue 8 - article #13
- Kazuhide Ichikawa, Masahiro Kawasaki, Fuminobu Takahashi
- arXiv.org – Astrophysics – February 2004
- astro-ph/0402522 [ abs , ps , pdf , other ]
Hadronic Decay of Late-Decaying Particles and Big-Bang Nucleosynthesis
- Virtual Journal - Volume 2, Issue 8 - article #19
- Masahiro Kawasaki, Kazunori Kohri, Takeo Moroi
- arXiv.org – Astrophysics – February 2004
- astro-ph/0402490 [ abs , ps , pdf , other ]
Big bang nucleosynthesis with a varying fine structure constant and non-standard expansion rate
- Virtual Journal - Volume 2, Issue 5 - article #24
- Kazuhide Ichikawa, Masahiro Kawasaki
- arXiv.org – Astrophysics – February 2004
- hep-ph/0401231 [ abs , ps , pdf , other ]
Comments on the evolution of strongly degenerate neutrinos in the early universe
- Virtual Journal - Volume 1, Issue 9 - article #56
- Kazuhide Ichikawa and Masahiro Kawasaki
- Physics Letters B - Volume 570, Issues 3-4
- doi:10.1016/j.physletb.2003.07.060

Results 1 - 26 of 26

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