Dark matter signatures in a mostly unexplored gamma-ray energy window
Date Issued
2015
Author(s)
Abstract
The energy range 0.3 MeV - 100 MeV between Compton and pair production regimes is unique
for studying matter evolution, antimatter generation, very energetic phenomena in compact objects
and massive black holes, and for resolving the Galactic Center region, still expected to be
the brightest source of dark matter annihilations in the gamma-ray sky. Until now, instruments in
this energy range lacked the sensitivity for a breakthrough that would require an efficient instrument
working both in the Compton scattering regime, and in the electron-positron pair production
regime at higher energies, with excellent background subtraction capability. The e-ASTROGAM
Mission (M. Tavani, V. Tatischeff et al.) to be proposed to the 2016 ESA M5 Call for a mediumsize
mission will add the as yet unexplored MeV - GeV range to dark matter investigations with
excellent angular resolution and exposure. Models will be tested in a spectral range not currently
studied in order to disentangle the possible dark matter contribution from the diffuse background,
the point sources contribution and the other possible explanations.
Coverage
11th International Workshop Dark Side of the Universe 2015 (DSU2015)
Series
Start page
20
Conferenece
11th International Workshop Dark Side of the Universe
Conferenece place
Kyoto, Japan
Conferenece date
14-18 December, 2015
Issn Identifier
1824-8039
Ads BibCode
2015dsu..workE..20P
Rights
open.access
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