Shota Notsu

Observation of Gravitational Waves from the Coalescence of a $2.5\text{-}4.5~M_\odot$ Compact Object and a Neutron Star

A secondary atmosphere on the rocky exoplanet 55 Cancri e

Lifetimes and Emergence/Decay Rates of Star Spots on Solar-type Stars Estimated by Kepler Data in Comparison with Those of Sunspots

Spectroscopic observations of active solar-analog stars with high X-ray luminosity, as a proxy of superflare stars