Tetsu Kitayama

Semianalytical predictions for statistical properties of x-ray clusters of galaxies in cold dark matter universes

Temperature and luminosity functions of X-ray clusters are computed semi-analytically, combining a simple model for the cluster gas properties with the distribution functions of halo formation epochs proposed by Lacey & Cole (1993) and Kitayama & Suto (1996). In contrast to several previous approaches which apply the Press--Schechter mass function in a straightforward manner, our method can explicitly take into account the temperature and luminosity evolution of clusters. In order to make quantitative predictions in a specific cosmological context, we adopt cold dark matter (CDM) universes. nAssuming the baryon density parameter

Constraints on the Fluctuation Amplitude and Density Parameter from X-Ray Cluster Number Counts

Omega_{rm B}=0.0125 h^{-2}

Sunyaev-Zeldovich Fluctuations from Spatial Correlations between Clusters of Galaxies.

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Formation of subgalactic clouds under ultraviolet background radiation

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Forming Clusters of Galaxies as the Origin of Unidentified GeV Gamma-Ray Sources

is the Hubble constant in units of 100 km

Formation rate of gravitational structures and the cosmic x-ray background radiation

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Criteria for the formation of Population III objects in the ultraviolet background radiation

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Substructures Revealed by the Sunyaev-Zel'dovich Effect at 150 GHz in a High-Resolution Map of RX J1347-1145

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Cosmological Implications of Number Counts of Clusters of Galaxies: log N–log S in X-Ray and Submm Bands

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Radiation—hydrodynamical collapse of pre-galactic clouds in the ultraviolet background

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