Can cosmic strings generate large-scale streaming velocities?

Details Can cosmic strings generate large-scale streaming velocities? Can cosmic strings generate large-scale streaming velocities?

Jan 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988apj...324....5b&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 324, Jan. 1, 1988, p. 5-18.

Astronomy and Astrophysics

Astrophysics

18

Astronomical Models, Dark Matter, Galactic Clusters, String Theory, Velocity Distribution, Distribution Functions, Monte Carlo Method, Red Shift

Scientific paper

A detailed calculation is presented of the generation of large-scale streaming velocities by nonsuperconducting cosmic strings. A spherical infall model is used to calculate the peculiar velocity induced by an individual loop of cosmic string at rest in the comoving frame. The effects of many uncorrelated loops are combined using both a semianalytic method and Monte Carlo simulations. The calculations are modified to include loop correlations. The results show that cosmic strings and cold dark matter are in apparent conflict with observations, but cosmic strings and hot dark mattter offer a hope of explaining the reported large-scale streaming velocities.

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