activity
20032026
most citedReheating After Quintessential Inflation and Gravitational Waves

135 citations · 2.2k across the 88 of their papers we have counts for

collaborators

89 papers

astro-ph.CO2026

Probing Helical Primordial Magnetic Fields via Chiral Gravitational Waves in the LISA-TAIJI Network

Kazuya Furusawa, Hiroyuki Tashiro

Primordial magnetic fields (PMFs) are anticipated to be a cosmological candidate for generating a stochastic gravitational wave background (SGWB) through their anisotropic stress.…

astro-ph.CO2026

Turbulent Transport of Galactic Magnetic Fields into Cosmic Voids: Insights from IllustrisTNG

Yuri Yamashita, Hiroyuki Tashiro, Kiyotomo Ichiki

Astrophysical processes associated with galaxies may contribute to the magnetization of cosmic voids. We investigate the diffusion of galactic magnetic fields in an expanding unive…

astro-ph.CO2024★ 3 cited

Revisiting constraints on primordial magnetic fields from spectral distortions of cosmic microwave background

Fumio Uchida, Kohei Kamada, Hiroyuki Tashiro

The magneto-hydrodynamic decay of primordial magnetic fields can distort the black-body spectrum of the cosmic microwave background (CMB) by draining magnetic energy into thermal p…

astro-ph.CO2024★ 1 cited

CMB lensing from early-formed dark matter halos

Katsuya T. Abe, Hiroyuki Tashiro

Some theoretical models for the early Universe predict a spike-type enhancement in the primordial power spectrum on a small scale, which would result in forming early-formed dark m…

astro-ph.CO2023★ 3 cited

Probing the mass relation between supermassive black holes and dark matter halos at high redshifts by gravitational wave experiments

Kazuya Furusawa, Hiroyuki Tashiro, Shuichiro Yokoyama +1

Numerous observations have shown that almost all galaxies in our Universe host supermassive black holes (SMBHs), but there is still much debate about their formation and evolutiona…

astro-ph.CO2023★ 13 cited

Probing the primordial Universe with 21-cm line from cosmic dawn/epoch of reionization

Teppei Minoda, Shohei Saga, Tomo Takahashi +4

In the most distant reaches of the Universe, the 21-cm hyperfine transition in neutral hydrogen provides one of the only available tracers of large-scale structure. A number of ins…