Cosmological limits on axions
Journal Article
·
· AIP Conference Proceedings
- Max-Planck-Institut fuer Physik, Foehringer Ring 6, D-80805 Muenchen (Germany)
- Department of Physics and Astronomy, University of Aarhus, DK-8000 Aarhus C (Denmark)
We derive cosmological limits on two-component hot dark matter consisting of neutrinos and axions. We restrict the large-scale structure data to the safely linear regime, excluding the Lyman-{alpha} forest. We derive Bayesian credible regions in the two-parameter space consisting of m{sub a} and {sigma}m{sub v}. Marginalising over {sigma}m{sub v} provides m{sub a}<1.02 eV(95% C.L.). In the absence of axions the same data and methods give {sigma}m{sub v}<0.63 eV(95% C.L.)
- OSTI ID:
- 21301093
- Journal Information:
- AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1115; ISSN APCPCS; ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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