Direct dissipationless formation of filaments in the large-scale matter distribution

Details Direct dissipationless formation of filaments in the large-scale matter distribution Direct dissipationless formation of filaments in the large-scale matter distribution

Jul 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983mnras.204p...7m&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 204, July 1983, p. 7P-11P.

Physics

2

Big Bang Cosmology, Galactic Evolution, Gravitational Collapse, Matter (Physics), Neutrinos, Adiabatic Conditions, Computerized Simulation, Filaments, Mass Distribution, Particle Density (Concentration), Particle Mass, Relic Radiation, Trapped Particles

Scientific paper

In the collisionless variant of the adiabatic theory of galaxy formation, both prolate and oblate collapse are preferred to spherically symmetric collapse. Therefore a neutrino dominated universe should possess sheets and filaments in a matter distribution riddled by voids tens of Mpc across. Sheets have rarely been observed and it is found in a numerical simulation that there is difficulty trapping enough neutrinos in galaxies formed in filaments. A number of suggestions are made to resolve the conflict.

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