Resurrecting hot dark matter - Large-scale structure from cosmic strings and massive neutrinos

Details Resurrecting hot dark matter - Large-scale structure from cosmic strings and massive neutrinos Resurrecting hot dark matter - Large-scale structure from cosmic strings and massive neutrinos

Nov 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988pasp..100.1364s&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 100, Nov. 1988, p. 1364-1366. Research supported by NSF

Astronomy and Astrophysics

Astronomy

Astronomical Models, Cosmology, Dark Matter, Neutrinos, String Theory, Baryons, Galactic Evolution, Mass Distribution, Power Spectra, Red Shift

Scientific paper

These are the results of a numerical simulation of the formation of large-scale structure from cosmic-string loops in a universe dominated by massive neutrinos (hot dark matter). This model has several desirable features. The final matter distribution contains isolated density peaks embedded in a smooth background, producing a natural bias in the distribution of luminous matter. Because baryons can accrete onto the cosmic strings before the neutrinos, the galaxies will have baryon cores and dark neutrino halos. Galaxy formation in this model begins much earlier than in random-phase models. On large scales the distribution of clustered matter visually resembles the CfA survey, with large voids and filaments.

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