Astronomy and Astrophysics – Astrophysics
Scientific paper
2004-05-24
Astron.Astrophys. 422 (2004) L23-L28
Astronomy and Astrophysics
Astrophysics
5 pages, 2 figures, A&A in press
Scientific paper
10.1051/0004-6361:20040175
We derive in this Letter the SZ effect induced by the secondary electrons produced in the annihilation of Weakly Interacting Massive Particles (assumed here to be neutralinos) in gravitationally bound structures dominated by Cold Dark Matter (CDM). We show that the DM induced SZ effect has a specific spectral shape and an amplitude which increases for decreasing neutralino mass M_{chi}. The available SZ data on the Coma cluster set an upper limit on the quantity
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