Conjecture on the physical origin of cosmic inhomogeneities

Details Conjecture on the physical origin of cosmic inhomogeneities Conjecture on the physical origin of cosmic inhomogeneities

Mar 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980mnras.190..743l&link_type=abstract

Monthly Notices of the Royal Astronomical Society, vol. 190, Mar. 1980, p. 743-747.

Astronomy and Astrophysics

Astronomy

Baryons, Big Bang Cosmology, Inhomogeneity, Jeans Theory, Space Density, Spectrum Analysis, Astronomical Models, Decoupling

Scientific paper

It is conjectured that a simple power law with spectral index between 1/3 and 1/2 may give the primeval density fluctuation amplitude at the end of decoupling. Possible gravi-thermal origin of the cosmic inhomogeneities alluded to by such a density spectrum is discussed. The role of baryon Jeans mass is considered, and it is noted that a physically generated amplitude as a smoothly decreasing function of scale suggests a causal physical process whose domain of influence increases with time.

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