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Minkowski functionals and the nonlinear perturbation theory in the large-scale structure: second-order effects
Takahiko Matsubara, Chiaki Hikage, Satoshi Kuriki
The second-order formula of Minkowski functionals in weakly non-Gaussian fields is compared with the numerical -body simulations. Recently, weakly non-Gaussian formula of Minkow…
Dual supermassive black holes at close separation revealed by the Hyper Suprime-Cam Subaru Strategic Program
John D. Silverman, Shenli Tang, Khee-Gan Lee +30
The unique combination of superb spatial resolution, wide-area coverage, and deep depth of the optical imaging from the Hyper Suprime-Cam (HSC) Subaru Strategic Program is utilized…
Covariance of the redshift-space matter power spectrum after reconstruction
Chiaki Hikage, Ryuichi Takahashi, Kazuya Koyama
We explore the covariance of redshift-space matter power spectra after a standard density-field reconstruction. We derive perturbative formula of the covariance at the tree-level o…