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arXiv · 1203.1164

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

C. Combet·D. Maurin·E. Nezri·E. Pointecouteau·J. A. Hinton·R. White
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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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C. Combet, D. Maurin, E. Nezri, E. Pointecouteau, J. A. Hinton, R. White. 2012-03-06. Decaying dark matter: a stacking analysis of galaxy clusters to improve on current limits. https://doi.org/10.1103/physrevd.85.063517

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