4 papers
Wave-Optics Imprints of Dark Matter Subhalos on Strongly Lensed Gravitational Waves
Shin'ichiro Ando
Wave-optics effects in strongly lensed gravitational waves (GWs) provide a new interferometric probe of dark matter substructure. We compute the full diffraction integral for GWs p…
Comparison of simulations and semi-analytical model for WDM subhalo mass functions
Mizuki Ono, Takashi Okamoto, Shin'ichiro Ando +1
The Cold Dark Matter (CDM) model successfully explains large-scale structure formation, but challenges remain at smaller scales, leading to interest in Warm Dark Matter (WDM) as an…
Stringent Constraints on Self-Interacting Dark Matter Using Milky-Way Satellite Galaxies Kinematics
Shin'ichiro Ando, Kohei Hayashi, Shunichi Horigome +2
Self-interacting dark matter (SIDM) has been proposed to address small-scale challenges faced by the cold dark matter (CDM) paradigm, such as the diverse density profiles observed…
Smallest Halos in Thermal Wino Dark Matter
Shin'ichiro Ando, Ayuki Kamada, Toyokazu Sekiguchi +1
(Mini) split supersymmetry explains the observed Higgs mass and evades stringent constraints, while keeping good features of TeV-scale supersymmetry other than the little hierarchy…