Journal article
Soft X-ray Excess in the Coma Cluster from a Cosmic Axion Background
- Abstract:
-
We show that the soft X-ray excess in the Coma cluster can be explained by a cosmic background of relativistic axions converting into photons in the cluster magnetic field. We provide a detailed self-contained review of the cluster soft X-ray excess, the proposed astrophysical explanations and the problems they face, and explain how a 0.1-1 keV axion background naturally arises at reheating in many string theory models of the early universe. We study the morphology of the soft excess by numer...
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- Publication status:
- Published
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- Publisher copy:
- 10.1088/1475-7516/2014/09/026
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Authors
Bibliographic Details
- Publisher:
- Institute of Physics Publishing
- Journal:
- JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
- Volume:
- 2014
- Issue:
- 9
- Pages:
- 026-026
- Publication date:
- 2013-12-13
- DOI:
- EISSN:
-
1475-7516
- ISSN:
-
1475-7516
- Source identifiers:
-
464569
Item Description
- Language:
- English
- Keywords:
- Pubs id:
-
pubs:464569
- UUID:
-
uuid:175901f4-9ce3-4443-857b-819ecf196d69
- Local pid:
- pubs:464569
- Deposit date:
- 2015-01-15
Terms of use
- Copyright date:
- 2013
- Notes:
- 43 pages, 11 figures
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