K
Kazuyuki Akitsu
Researcher at Institute for the Physics and Mathematics of the Universe
Publications - 13
Citations - 165
Kazuyuki Akitsu is an academic researcher from Institute for the Physics and Mathematics of the Universe. The author has contributed to research in topics: Galaxy & Cosmic microwave background. The author has an hindex of 6, co-authored 8 publications receiving 117 citations. Previous affiliations of Kazuyuki Akitsu include University of Tokyo.
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Large-scale tidal effect on redshift-space power spectrum in a finite-volume survey
TL;DR: In this paper, the authors show that the coherent tidal force causes a homogeneous anisotropic distortion of the observed distribution of galaxies in all three directions, perpendicular and parallel to the line-of-sight direction.
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Impact of large-scale tides on cosmological distortions via redshift-space power spectrum
TL;DR: In this paper, a large-scale tide induced by scalar perturbations causes apparent anisotropic distortions in the redshift-space power spectrum of galaxies in a way depending on an alignment between the tide, wave vector of small-scale modes and line-of-sight direction.
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Galaxy imaging surveys as spin-sensitive detector for cosmological colliders
TL;DR: In this paper, the sensitivity of galaxy shapes to new physics in the initial conditions was investigated, and it was shown that a galaxy imaging survey essentially functions as a spin sensitive detector of such particles in the early universe.
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Cosmological simulation in tides: power spectra, halo shape responses, and shape assembly bias
Journal ArticleDOI
Galaxy imaging surveys as spin-sensitive detector for cosmological colliders
TL;DR: In this article, the sensitivity of galaxy shapes to new physics in the initial conditions was investigated, and it was shown that a galaxy imaging survey essentially functions as a spin sensitive detector of such particles in the early universe.