6 papers · 1 filter
Second-order power spectra of CMB anisotropies due to primordial random perturbations in flat cosmological models
Kenji Tomita
Second-order power spectra of Cosmic Microwave Background (CMB) anisotropies due to random primordial perturbations at the matter dominant stage are studied, based on the relativis…
Second-order gravitational effects of local inhomogeneities on CMB anisotropies in nonzero-Lambda flat cosmological models
Kenji Tomita
Nonlinear gravitational effects of large-scale inhomogeneities on Cosmic Microwave Background (CMB) anisotropies are studied. based on the relativistic second-order theory of pertu…
Relativistic second-order perturbations of nonzero-Λflat cosmological models and CMB anisotropies
Kenji Tomita
First the second-order perturbations of nonzero-Λcosmological models are derived with an arbitrary potential function of spatial coordinates, using the nonlinear version of Lifshit…
Junction conditions of cosmological perturbations
Kenji Tomita
The behavior of perturbations is studied in cosmological models which consist of two different homogeneous regions connected in a spherical shell boundary. The junction conditions…
Bulk Motions in Large-Scale Void Models
K. Tomita
To explain the puzzling situation in the observed bulk flows on scales Mpc ( km sec Mpc), we consider the observational behavior o…
Cosmological Simulation of Gravitational Weak Lensing in Open Models
Kenji Tomita
Cosmological simulation of gravitational weak lensing in open models is treated using the direct integration method, which is independent of the mult-lens-plane method. Statistical…