activity
20202024
most citedA Study on the Baryon Acoustic Oscillation with Topological Data Analysis

10 citations · 18 across the 5 of their papers we have counts for

collaborators

5 papers

astro-ph.CO2024★ 3 cited

Differentiating Warm Dark Matter Models through 21cm Line Intensity Mapping: A Convolutional Neural Network Approach

Koya Murakami, Kenji Kadota, Atsushi J. Nishizawa +2

We apply the convolutional neural networks (CNNs) to the mock 21cm maps from the post-reionization epoch to show that the cold dark matter and warm dark matter (WDM) model can…

astro-ph.CO2023★ 4 cited

Non-Linearity-Free prediction of the growth-rate using Convolutional Neural Networks

Koya Murakami, Indira Ocampo, Savvas Nesseris +2

The growth-rate of the large-scale structure of the Universe is an important dynamic probe of gravity that can be used to test for deviations from General Relativity. How…

astro-ph.CO2023★ 1 cited

Impact of astrophysical effects on the dark matter mass constraint with 21cm intensity mapping

Koya Murakami, Atsushi J. Nishizawa, Kentaro Nagamine +1

We present an innovative approach to constraining the non-cold dark matter model using a convolutional neural network (CNN). We perform a suite of hydrodynamic simulations with var…

astro-ph.CO2020

Identifying Cosmological Information in a Deep Neural Network

Koya Murakami, Atsushi J. Nishizawa

A novel method images to estimate cosmological parameters based on images is presented. In this paper, we demonstrate the use of a convolutional neural network (CNN) for constraini…

astro-ph.CO2020★ 10 cited

A Study on the Baryon Acoustic Oscillation with Topological Data Analysis

Kai T. Kono, Tsutomu T. Takeuchi, Suchetha Cooray +2

(abridged) The scale of the acoustic oscillation of baryons at the baryon-photon decoupling is imprinted on the spatial distribution of galaxies in the Universe, known as the baryo…