70 citations · 158 across the 4 of their papers we have counts for
6 papers
Comparison of algorithms for determination of rotation measure and Faraday structure I. 1100 - 1400 MHz
X. H. Sun, L. Rudnick, Takuya Akahori +14
(abridged) We run a Faraday structure determination data challenge to benchmark the currently available algorithms including Faraday synthesis (previously called RM synthesis in th…
Exploring the Intergalactic Magnetic Field by Means of Faraday Tomography
Takuya Akahori, Kohei Kumazaki, Keitaro Takahashi +1
Unveiling the intergalactic magnetic field (IGMF) in filaments of galaxies is a very important and challenging subject in modern astronomy. In order to probe the IGMF from rotation…
Properties of Intrinsic Polarization Angle Ambiguities in Faraday Tomography
Kohei Kumazaki, Takuya Akahori, Shinsuke Ideguchi +2
Faraday tomography is a powerful method to diagnose polarizations and Faraday rotations along the line of sight. The quality of Faraday tomography is, however, limited by several c…
Fisher Analysis on Wide-Band Polarimetry for Probing the Intergalactic Magnetic Field
Shinsuke Ideguchi, Keitaro Takahashi, Takuya Akahori +2
We investigate the capability of ongoing radio telescopes for probing Faraday rotation measure (RM) due to the intergalactic magnetic field (IGMF) in the large-scale structure of t…
Exploring the origin of the fine structures in the CMB temperature angular power spectrum
Kohei Kumazaki, Kiyotomo Ichiki, Naoshi Sugiyama +1
The angular power spectrum of the cosmic microwave background (CMB) temperature anisotropies is a good probe to look into the primordial density fluctuations at large scales in the…
Fine Features in the Primordial Power Spectrum
Kohei Kumazaki, Shuichiro Yokoyama, Naoshi Sugiyama
A possible origin of the anomalous dip and bump in the primordial power spectrum, which are reconstructed from WMAP data corresponding to the multipole by using…