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Perspective of monochromatic gamma-ray line detection with the High Energy cosmic-Radiation Detection (HERD) facility onboard China’s space station.
- Source :
-
Astroparticle Physics . May2016, Vol. 78, p35-42. 8p. - Publication Year :
- 2016
-
Abstract
- HERD is the High Energy cosmic-Radiation Detection instrument proposed to operate onboard China’s space station in the 2020s. It is designed to detect energetic cosmic ray nuclei, leptons and photons with a high energy resolution ( ∼1% for electrons and photons and 20% for nuclei) and a large geometry factor (>3 m 2 sr for electrons and diffuse photons and > [2]m 2 sr for nuclei). In this work we discuss the capability of HERD to detect monochromatic γ -ray lines, based on simulations of the detector performance. It is shown that HERD will be one of the most sensitive instruments for monochromatic γ -ray searches at energies between ∼ 10 to a few hundred GeV. Above hundreds of GeV, Cherenkov telescopes will be more sensitive due to their large effective area. As a specific example, we show that a good portion of the parameter space of a supersymmetric dark matter model can be probed with HERD. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 09276505
- Volume :
- 78
- Database :
- Academic Search Index
- Journal :
- Astroparticle Physics
- Publication Type :
- Academic Journal
- Accession number :
- 113726996
- Full Text :
- https://doi.org/10.1016/j.astropartphys.2016.02.003