273 citations · 1.4k across the 54 of their papers we have counts for
6 papers · 1 filter
How the Self-Interacting Dark Matter Model Explains the Diverse Galactic Rotation Curves
Ayuki Kamada, Manoj Kaplinghat, Andrew B. Pace +1
The rotation curves of spiral galaxies exhibit a diversity that has been difficult to understand in the cold dark matter (CDM) paradigm. We show that the self-interacting dark matt…
SIMP from a strong U(1) gauge theory with a monopole condensation
Ayuki Kamada, Masaki Yamada, Tsutomu T. Yanagida +1
We provide a variant model of strongly interacting massive particle (SIMP), where composite dark matter comes from a strongly interacting U(1) theory. We first explain a non-Abelia…
Constraints on mixed dark matter from anomalous strong lens systems
Ayuki Kamada, Kaiki Taro Inoue, Tomo Takahashi
Recently it has been claimed that the warm dark matter (WDM) model cannot at the same time reproduce the observed Lyman-α forests in distant quasar spectra and solve the small-scal…
Effects of electrically charged dark matter on cosmic microwave background anisotropies
Ayuki Kamada, Kazunori Kohri, Tomo Takahashi +1
We examine the possibility that dark matter consists of charged massive particles (CHAMPs) in view of the cosmic microwave background (CMB) anisotropies. The evolution of cosmologi…
Matter Power Spectrum in Hidden Neutrino Interacting Dark Matter Models: A Closer Look at the Collision Term
Tobias Binder, Laura Covi, Ayuki Kamada +3
Dark Matter (DM) models providing possible alternative solutions to the small- scale crisis of standard cosmology are nowadays of growing interest. We consider DM interacting with…
Cosmological Constraint on the Light Gravitino Mass from CMB Lensing and Cosmic Shear
Ken Osato, Toyokazu Sekiguchi, Masato Shirasaki +2
Light gravitinos of mass eV are of particular interest in cosmology, offering various baryogenesis scenarios without suffering from the cosmological gra…