Speaker
崚介 糟谷
(東北大学)
Description
We provide a detailed formulation for calculating the angular power spectrum of
the cosmic background photons arising from the dark matter decay or annihilation
in a comprehensive manner. We pay particular attention to the case of dark matter
decaying or annihilating into line photons. It is pointed out that taking account of the
energy resolution of the detector is essential to correctly evaluate the angular power
spectrum. We apply our formulation to the observational data from infrared, optical,
X-ray and gamma-ray telescopes.
Author
崚介 糟谷
(東北大学)
Co-author
Kazunori Nakayama
(Tohoku University)