Decaying dark matter: Stacking analysis of galaxy clusters to improve on current limits
Decaying dark matter: Stacking analysis of galaxy clusters to improve on current limits
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DOI:
10.1103/physrevd.85.063517
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发表时间:
2012-03
影响因子:
5
通讯作者:
C. Combet;D. Maurin;E. Nezri;E. Pointecouteau;J. Hinton;R. White
中科院分区:
文献类型:
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作者:
C. Combet;D. Maurin;E. Nezri;E. Pointecouteau;J. Hinton;R. White
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.