Cosmological constraints on neutrino plus axion hot dark matter: update after WMAP-5

Journal Article · Tue Apr 15 04:00:00 EDT 2008 · Journal of Cosmology and Astroparticle Physics

DOI:https://doi.org/10.1088/1475-7516/2008/04/019· OSTI ID:22137844

Hannestad, S ^[1]; Mirizzi, A; Raffelt, G G

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1. Department of Physics and Astronomy, University of Aarhus, DK-8000 Aarhus C (Denmark)

We update our previous constraints on two-component hot dark matter (axions and neutrinos), including the recent WMAP five-year data release. Marginalizing over {Sigma}m{sub {nu}} provides m{sub a}<1.02 eV (95% C.L.) for the axion mass. In the absence of axions we find {Sigma}m{sub {nu}}<0.63 eV (95% C.L.)

• OSTI ID: 22137844
• Journal Information: Journal of Cosmology and Astroparticle Physics, Journal Name: Journal of Cosmology and Astroparticle Physics Journal Issue: 04 Vol. 2008; ISSN 1475-7516
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTRONOMY AND ASTROPHYSICS
AXIONS
COSMOLOGY
EV RANGE
LIMITING VALUES
NEUTRINOS
NONLUMINOUS MATTER