Achievements & Publications

Early metal enrichment and Lyman \ensuremathα emission

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Mori, Masao,   Umemura, Masayuki

We simulate the dynamical and chemical evolution of a forming galaxy embedded in a dark matter halo, using a three-dimensional N-body/hydrodynamic simulation code combined with stellar population synthesis. We find that a sparkling phase with multitudinous SN explosions at less than 3 × 10 $^8$ years exhibits intense Lyman \ensuremathα...

Clustering of Lyman Break Galaxies at z = 4 and 5 in the Subaru Deep Field: Luminosity Dependence of the Correlation Function Slope

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Kashikawa, Nobunari,   Yoshida, Makiko,   Shimasaku, Kazuhiro,   Nagashima, Masahiro,   Yahagi, Hideki,   Ouchi, Masami

We explored the clustering properties of Lyman break galaxies at z=4 and 5 with an angular two-point correlation function on the basis of the very deep and wide Subaru Deep Field data. We confirmed the previous result that the clustering strength of LBGs depends on the UV luminosity in the...

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The evolution of galaxies from primeval irregulars to present-day ellipticals

Mori, Masao,   Umemura, Masayuki

Galaxy formation is believed to proceed in a `bottom up' manner, starting with the formation of small clumps of gas and stars that then merge hierarchically into giant systems. The baryonic gas loses thermal energy by radiative cooling and falls towards the centres of the new galaxies, while supernovae blow...

March 2006   Nature
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Early metal enrichment and Lyman \ensuremathα emission

Mori, Masao,   Umemura, Masayuki

We simulate the dynamical and chemical evolution of a forming galaxy embedded in a dark matter halo, using a three-dimensional N-body/hydrodynamic simulation code combined with stellar population synthesis. We find that a sparkling phase with multitudinous SN explosions at less than 3 × 10 $^8$ years exhibits intense Lyman \ensuremathα...

March 2006   New Astronomy Reviews
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Clustering of Lyman Break Galaxies at z = 4 and 5 in the Subaru Deep Field: Luminosity Dependence of the Correlation Function Slope

Kashikawa, Nobunari,   Yoshida, Makiko,   Shimasaku, Kazuhiro,   Nagashima, Masahiro,   Yahagi, Hideki,   Ouchi, Masami

We explored the clustering properties of Lyman break galaxies at z=4 and 5 with an angular two-point correlation function on the basis of the very deep and wide Subaru Deep Field data. We confirmed the previous result that the clustering strength of LBGs depends on the UV luminosity in the...

February 2006   The Astrophysical Journal