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Cross-Correlation of the Extragalactic Gamma-ray Background with Luminous Red Galaxies
Masato Shirasaki, Shunsaku Horiuchi, Naoki Yoshida
Measurements of the cross-correlation between the extragalactic gamma-ray background (EGB) and large-scale structure provide a novel probe of dark matter on extragalactic scales. W…
Probing cosmology with weak lensing selected clusters II: Dark energy and f(R) gravity models
Masato Shirasaki, Takashi Hamana, Naoki Yoshida
Ongoing and future wide-field galaxy surveys can be used to locate a number of clusters of galaxies with cosmic shear measurement alone. We study constraints on cosmological models…
Probing cosmology with weak lensing selected clusters I: Halo approach and all-sky simulations
Masato Shirasaki, Takashi Hamana, Naoki Yoshida
We explore a variety of statistics of clusters selected with cosmic shear measurement by utilizing both analytic models and large numerical simulations. We first develop a halo mod…
Impact of Baryonic Processes on Weak Lensing Cosmology: Power Spectrum, Non-Local Statistics, and Parameter Bias
Ken Osato, Masato Shirasaki, Naoki Yoshida
We study the impact of baryonic physics on cosmological parameter estimation with weak lensing surveys. We run a set of cosmological hydrodynamics simulations with different galaxy…