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Decaying dark matter: a stacking analysis of galaxy clusters to improve on current limits

Abstract : We show that a stacking approach to galaxy clusters can improve current limits on decaying dark matter by a factor $\gtrsim 5-100$, with respect to a single source analysis, for all-sky instruments such as Fermi-LAT. Based on the largest sample of X-ray-selected galaxy clusters available to date (the MCXC meta-catalogue), we provide all the astrophysical information, in particular the astrophysical term for decaying dark matter, required to perform an analysis with current instruments.
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http://hal.in2p3.fr/in2p3-00677019
Contributor : Emmanuelle Vernay <>
Submitted on : Wednesday, March 7, 2012 - 9:25:29 AM
Last modification on : Wednesday, December 23, 2020 - 7:56:02 AM

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C. Combet, D. Maurin, E. Nezri, E. Pointecouteau, J.A. Hinton, et al.. Decaying dark matter: a stacking analysis of galaxy clusters to improve on current limits. Physical Review D, American Physical Society, 2012, 85, pp.063517. ⟨10.1103/PhysRevD.85.063517⟩. ⟨in2p3-00677019⟩

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