Formation of structure in an axion-dominated universe

Details Formation of structure in an axion-dominated universe Formation of structure in an axion-dominated universe

May 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983phlb..125...35t&link_type=abstract

Physics Letters B, Volume 125, Issue 1, p. 35-40.

Physics

55

Scientific paper

We consider the formation of structure in a Universe dominated by axions of mass ~10-5eV(ƒ;a~1012GeV). Because of their high phase space density and very low temperature, it is not difficult for axions to find their way into galactic haloes. With a suitable initial spectrum of density fluctuations, the present observed structure of the universe could have evolved. However, the Zel'dovich spectrum, which is predicted by some inflationary universe scenarios, is difficult to accommodate.

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