25 citations · 82 across the 10 of their papers we have counts for
10 papers
The Milky Way Tomography with Subaru Hyper Suprime-Cam. II. Global halo structure
Yoshihisa Suzuki, Masashi Chiba, Rosemary F. G. Wyse +1
We investigate the structure of the Milky Way's stellar halo within 70 kpc of the Sun using a wide-field photometric catalog obtained from the Hyper Suprime-Cam (HSC) Subaru Strate…
Galactic Archaeology with the Subaru `Ōnohi`ula Prime Focus Spectrograph Strategic Program
Masashi Chiba, Rosemary F. G. Wyse, Evan N. Kirby +48
The recently commissioned Subaru `Ōnohi`ula Prime Focus Spectrograph (PFS) will obtain spectra from nearly 2,400 fibers that cover 1.24 square degrees. The 360 night Subaru Strateg…
JFlow: Model-Independent Spherical Jeans Analysis using Equivariant Continuous Normalizing Flows
Sung Hak Lim, Kohei Hayashi, Shun'ichi Horigome +2
The kinematics of stars in dwarf spheroidal galaxies have been studied to understand the structure of dark matter halos. However, the kinematic information of these stars is often…
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…
SASHIMI-SIDM: Semi-analytical subhalo modelling for self-interacting dark matter at sub-galactic scales
Shin'ichiro Ando, Shunichi Horigome, Ethan O. Nadler +2
We combine the semi-analytical structure formation model, SASHIMI, which predicts subhalo populations in collisionless, cold dark matter (CDM), with a parametric model that maps CD…
Cosmological prior for the -factor estimation of dwarf spheroidal galaxies
Shun'ichi Horigome, Kohei Hayashi, Shin'ichiro Ando
Dark matter halos of dwarf spheroidal galaxies (dSphs) play important roles in dark matter detection. Generally we estimate the halo profile using a kinematical equation of dSphs b…
Leptophilic fermion WIMP ~ Role of future lepton colliders
Shun-ichi Horigome, Taisuke Katayose, Shigeki Matsumoto +1
The leptophilic weakly interacting massive particle (WIMP) is realized in a minimal renormalizable model scenario where scalar mediators with lepton number establish the WIMP inter…
-factor estimation of Draco, Sculptor and Ursa Minor dwarf spheroidal galaxies with the member/foreground mixture model
Shun-ichi Horigome, Kohei Hayashi, Masahiro Ibe +3
Dwarf spheroidal galaxies (dSphs) are promising targets of indirect detection experiments searching for dark matter (DM) at present universe. Toward robust prediction for the amoun…
Foreground effect on the -factor estimation of ultra-faint dwarf spheroidal galaxies
Koji Ichikawa, Shun-ichi Horigome, Miho N. Ishigaki +4
Dwarf spheroidal galaxies (dSphs) are promising targets for the gamma-ray dark matter (DM) search. In particular, DM annihilation signal is expected to be strong in some of the rec…
Foreground effect on the -factor estimation of classical dwarf spheroidal galaxies
Koji Ichikawa, Miho N. Ishigaki, Shigeki Matsumoto +4
The gamma-ray observation of the dwarf spheroidal galaxies (dSphs) is a promising approach to search for the dark matter annihilation (or decay) signal. The dSphs are the nearby sa…