86 citations · 482 across the 13 of their papers we have counts for
13 papers
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…
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…
Planck 2015 constraints on spatially-flat dynamical dark energy models
Junpei Ooba, Bharat Ratra, Naoshi Sugiyama
We determine constraints on spatially-flat tilted dynamical dark energy XCDM and CDM inflation models by analyzing Planck 2015 cosmic microwave background (CMB) anisotropy data…
Updated observational constraints on quintessence dark energy models
Jean-Baptiste Durrive, Junpei Ooba, Kiyotomo Ichiki +1
The recent GW170817 measurement favors the simplest dark energy models, such as a single scalar field. Quintessence models can be classified in two classes, freezing and thawing, d…
Planck 2015 constraints on the non-flat CDM inflation model
Junpei Ooba, Bharat Ratra, Naoshi Sugiyama
We perform Markov chain Monte Carlo analyses to put constraints on the non-flat CDM inflation model using Planck 2015 cosmic microwave background (CMB) anisotropy data and baryo…
Planck 2015 constraints on the non-flat XCDM inflation model
Junpei Ooba, Bharat Ratra, Naoshi Sugiyama
We study Planck 2015 cosmic microwave background (CMB) anisotropy data using the energy density inhomogeneity power spectrum generated by quantum fluctuations during an early epoch…