Formation of structure in an axion-dominated universe

Michael S. Turner; Frank Wilczek; A. Zee

doi:10.1016/0370-2693(83)91229-7

Formation of structure in an axion-dominated universe

Michael S. Turner, Frank Wilczek, A. Zee

Research output: Contribution to journal › Article › peer-review

72 Scopus citations

Abstract

We consider the formation of structure in a Universe dominated by axions of mass ≈10^-5eV(f{hook}_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.

Original language	English (US)
Pages (from-to)	35-40
Number of pages	6
Journal	Physics Letters B
Volume	125
Issue number	1
DOIs	https://doi.org/10.1016/0370-2693(83)91229-7
State	Published - May 19 1983
Externally published	Yes

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1016/0370-2693(83)91229-7

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title = "Formation of structure in an axion-dominated universe",

abstract = "We consider the formation of structure in a Universe dominated by axions of mass ≈10-5eV(f{hook}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.",

author = "Turner, {Michael S.} and Frank Wilczek and A. Zee",

note = "Funding Information: This work was supported in part by the US Department of Energy through contracts DE-AC02-80ER 10773A003 (at Chicago) and DE-AC06-81 ER40048 (at Washington), and by the National Science Foundation through grant PHY77-27084 (at Santa Barbara).",

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T1 - Formation of structure in an axion-dominated universe

AU - Turner, Michael S.

AU - Wilczek, Frank

AU - Zee, A.

N1 - Funding Information: This work was supported in part by the US Department of Energy through contracts DE-AC02-80ER 10773A003 (at Chicago) and DE-AC06-81 ER40048 (at Washington), and by the National Science Foundation through grant PHY77-27084 (at Santa Barbara).

PY - 1983/5/19

Y1 - 1983/5/19

N2 - We consider the formation of structure in a Universe dominated by axions of mass ≈10-5eV(f{hook}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.

AB - We consider the formation of structure in a Universe dominated by axions of mass ≈10-5eV(f{hook}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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Formation of structure in an axion-dominated universe

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