Indirect Detection of Dark Matter Around a Supermassive Black Hole with High Energy-Resolution Gamma-Ray Telescopes

Kavli Affiliate: Shigeki Matsumoto | Summary:We explore whether the unprecedented energy resolution of upcoming gamma-ray telescopes can uncover relativistic effects in photon spectra resulting from dark matter (DM) annihilation or decay near the supermassive black hole (SMBH) at the Galactic Center (GC), specifically, gravitational redshift, Doppler broadening due to Lorentz boosts, and kinetic energy enhancements […]


Continue.. Indirect Detection of Dark Matter Around a Supermassive Black Hole with High Energy-Resolution Gamma-Ray Telescopes

Enhanced plasma heating via interaction with high-contrast laser and cone-shaped target

Kavli Affiliate: Tomoyuki Abe| First 5 Authors: Yuga Karaki, Yuga Karaki, , , | Summary:We investigated plasma heating enhancement using a high-intensity, high-contrast laser and a cone-attached target. Fast electron spectra and X-ray emission were measured with an electron spectrometer and a Bragg crystal spectrometer. The results were analyzed using PrismSPECT simulations with a two-component […]


Continue.. Enhanced plasma heating via interaction with high-contrast laser and cone-shaped target