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Colin Carlile, researcher at Lund Observatory. Photo.

Colin Carlile

Guest researcher

Colin Carlile, researcher at Lund Observatory. Photo.

Sensitivity of the Cherenkov Telescope Array to a dark matter signal from the Galactic centre

Author

  • Christopher Eckner
  • H. Abdalla
  • C. Carlile
  • D. Dravins
  • A. Zmija

Summary, in English

High-energy gamma rays are promising tools to constrain or reveal the nature of dark matter, in particular Weakly Interacting Massive Particles. Being well into its pre-construction phase, the Cherenkov Telescope Array (CTA) will soon probe the sky in the 20 GeV - 300 TeV energy range. Thanks to its improved energy and angular resolutions as well as significantly larger effective area when compared to the current generation of Cherenkov telescopes, CTA is expected to probe heavier dark matter, with unprecedented sensitivity, reaching the thermal annihilation cross-section at 1 TeV. This talk will summarise the planned dark matter search strategies with CTA, focusing on the signal from the Galactic centre. As observed with the Fermi LAT at lower energies, this region is rather complex and CTA will be the first ground-based observatory sensitive to the large scale diffuse astrophysical emission from that region. We report on the collaboration effort to study the impact of such extended astrophysical backgrounds on the dark matter search, based on Fermi-LAT data in order to guide our observational strategies, taking into account various sources of systematic uncertainty. © Copyright owned by the author(s) under the terms of the Creative Commons.

Department/s

  • Lund Observatory - Undergoing reorganization
  • Astrophysics

Publishing year

2022

Language

English

Publication/Series

Proceedings of Science

Volume

395

Document type

Conference paper

Topic

  • Astronomy, Astrophysics and Cosmology

Keywords

  • Annihilation
  • Dark Matter
  • Gamma rays
  • Germanium compounds
  • Telescopes
  • Tellurium compounds
  • Angular resolution
  • Cherenkov telescope arrays
  • Dark matter
  • Dark matter searches
  • Energy ranges
  • Energy resolutions
  • Galactic Center
  • High energy gamma rays
  • Pre-construction phase
  • Weakly interacting massive particles
  • Galaxies

Conference name

37th International Cosmic Ray Conference

Conference date

2021-07-12 - 2021-07-23

Conference place

Berlin, Germany

Status

Published

ISBN/ISSN/Other

  • ISSN: 1824-8039