70 citations · 70 across the 1 of their papers we have counts for
6 papers
Thermal Evolution of Neutron Stars as a Probe of Physics beyond the Standard Model
Keisuke Yanagi
Thermal evolution of neutron stars (NSs) is studied as a probe of physics beyond the standard model. We first review the standard cooling theory of NSs in detail, with an emphasis…
Constraining FIMP from the structure formation of the Universe: analytic mapping from
Ayuki Kamada, Keisuke Yanagi
A feebly interacting massive particle (FIMP), contrasting with a weakly interacting massive particle (WIMP), is an intriguing dark matter (DM) candidate. Light (keV-scale) FIMP DM…
Fingerprint matching of beyond-WIMP dark matter: neural network approach
Kyu Jung Bae, Ryusuke Jinno, Ayuki Kamada +1
Galactic-scale structure is of particular interest since it provides important clues to dark matter properties and its observation is improving. Weakly interacting massive particle…
Dark Matter Heating vs. Rotochemical Heating in Old Neutron Stars
Koichi Hamaguchi, Natsumi Nagata, Keisuke Yanagi
Dark matter (DM) particles in the Universe accumulate in neutron stars (NSs) through their interactions with ordinary matter. It has been known that their annihilation inside the N…
Cooling Theory Faced with Old Warm Neutron Stars: Role of Non-Equilibrium Processes with Proton and Neutron Gaps
Keisuke Yanagi, Natsumi Nagata, Koichi Hamaguchi
Recent observations have found several candidates for old warm neutron stars whose surface temperatures are above the prediction of the standard neutron star cooling scenario, and…
Probing the origin of 750 GeV diphoton excess with the precision measurements at the ILC
Kyu Jung Bae, Koichi Hamaguchi, Takeo Moroi +1
The recently reported diphoton excess at the LHC may imply the existence of a new resonance with a mass of about 750 GeV which couples to photons via loops of new charged particles…