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[文献書誌] S.Kasuya, M.Kawasaki, Naoshi Sugiyama: "Partially ionizing the universe by decaying particles"Physical Review. D69. 023512 (2004)
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[文献書誌] X.Chen, A.Cooray, Naoki Yoshida, Naoshi Sugiyama: "Can Non-Gaussian Cosmological Models Explain the WMAP's High Optical Depth for Reionization?"Mon.Not.Roy.Astro.. 346. L31-L35 (2003)
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[文献書誌] U.Seljak, Naoshi Sugiyama, M.White, M.Zaldarriaga: "A comparison of cosmological Boltzmann codes : are we ready for high precision cosmology?"Physical Review. D68. 083507 (2003)
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[文献書誌] Naoki Yoshida, Naoshi sugiyama, Lars Hernquist: "The evolution of baryon density fluctuations in multi-component cosmological simulations"Mon.Not.Roy.Astro.. 344. 481-491 (2003)
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[文献書誌] Naoki Yoshida, Tom Abel, Lars Hernquist, Naoshi Sugiyama: "Simulations of Early Structure Formation : Primordial Gas Clouds"Astrophysical Journal. 592. 645-663 (2003)
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[文献書誌] Naoshi Sugiyama: "Shine the Dark Ages"New Astronomy Reviews. 47. 887-891 (2004)