| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 10723894 | Physics Letters B | 2009 | 5 Pages |
Abstract
Motivated by the PAMELA anomaly in the fluxes of cosmic-ray e+ and eâ, we study the cosmic γ-ray induced by the inverse Compton (IC) scattering process in unstable dark matter scenario assuming that the anomaly is due to the e± emission by the decay of dark matter. We calculate the fluxes of IC-induced γ-ray produced in our Galaxy and that from cosmological distance, and show that both of them are significant. If the γ-ray flux is precisely determined by Fermi Gamma-ray Space Telescope for various line-of-sight directions, it will provide an important test of the decaying dark matter scenario.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Nuclear and High Energy Physics
Authors
Koji Ishiwata, Shigeki Matsumoto, Takeo Moroi,