期刊
PHYSICAL REVIEW D
卷 92, 期 4, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.92.043510
关键词
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资金
- ERC [267117]
- NSF [OIA-1124403]
- UPMC
- STFC
- ILP LABEX [ANR-10-LABX-63]
- ANR [ANR-11-IDEX- 0004-02]
- Munich Institute for Astro- and Particle Physics (MIAPP) of the DFG cluster of excellence
- Office Of The Director
- Office of Integrative Activities [1124403] Funding Source: National Science Foundation
Using the spectral energy distribution of M87, a nearby radio galaxy in the Virgo cluster, and assuming a supermassive black hole induced spike in the dark matter halo profile, we exclude any dark matter candidate with a velocity-independent (s-wave) annihilation cross-section of the order of similar to 10(-26) cm(3) s(-1) and a mass up to O(100) TeV. These limits supersede all previous constraints on thermal, s-wave, annihilating dark matter candidates by orders of magnitude, and rule out the entire canonical mass range. We remark in addition that, under the assumption of a spike, dark matter particles with a mass of a few TeV and an annihilation cross-section of similar to 10(-27) cm(3) s(-1) could explain the TeV gamma-ray emission observed in M87. A central dark matter spike is plausibly present around the supermassive black hole at the center of M87, for various, although not all, formation scenarios, and would have profound implications for our understanding of the dark matter microphysics.
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