135 citations · 2.2k across the 88 of their papers we have counts for
7 papers · 1 filter
Resonant magnetogenesis from axions
Teerthal Patel, Hiroyuki Tashiro, Yuko Urakawa
We investigate the generation of seed magnetic field through the Chern-Simons coupling between the U(1) gauge field and an axion field that commences to oscillate at various epoch,…
Cross-correlation between 21-cm radiation and CMB B modes from the cosmic birefringence in the presence of a light scalar field
Kenji Kadota, Junpei Ooba, Hiroyuki Tashiro +2
We study the cross-correlation between the 21cm and CMB B mode fluctuations which are induced by the cosmic birefringence when the non-constant scalar field couples to the electrom…
Spectral Distortions of the CMB as a Probe of Inflation, Recombination, Structure Formation and Particle Physics
J. Chluba, A. Kogut, S. P. Patil +98
Following the pioneering observations with COBE in the early 1990s, studies of the cosmic microwave background (CMB) have focused on temperature and polarization anisotropies. CMB…
Secondary CMB temperature anisotropies from magnetic reheating
Shohei Saga, Atsuhisa Ota, Hiroyuki Tashiro +1
Spatially fluctuating primordial magnetic fields (PMFs) inhomogeneously reheat the Universe when they dissipate deep inside the horizon before recombination. Such an energy injecti…
Electromagnetic probes of primordial black holes as dark matter
Y. Ali-Haimoud, S. Clesse, J. Garcia-Bellido +91
The LIGO discoveries have rekindled suggestions that primordial black holes (BHs) may constitute part to all of the dark matter (DM) in the Universe. Such suggestions came from 1)…
Cosmological constraints on the velocity-dependent baryon-dark matter coupling
Junpei Ooba, Horoyuki Tashiro, Kenji Kadota
We present the cosmological constraints on the cross section of baryon-dark matter interactions for the dark matter mass below the MeV scale from the Planck CMB (cosmic microwave b…