Astronomy and Astrophysics – Astrophysics
Scientific paper
1997-06-26
Astrophys.J. 508 (1998) 530-534
Astronomy and Astrophysics
Astrophysics
6 pages, 2 figures, submitted to ApJ. See also http://lca.ncsa.uiuc.edu/~tom/Strings/ which gives additional information, vi
Scientific paper
10.1086/306413
We examine the structure of baryonic wakes in the cosmological fluid which would form behind GUT-scale cosmic strings at early times (redshifts z > 100) in a neutrino-dominated universe. We show, using simple analytical arguments as well as 1- and 2-dimensional hydrodynamical simulations, that these wakes will NOT be able to form interesting cosmological objects before the neutrino component collapses. The width of the baryonic wakes (< 10 kpc comoving) is smaller than the scale of wiggles on the strings and are probably not enhanced by the wiggliness of the string network.
Abel Tom
Anninos Peter
Norman Michael L.
Stebbins Albert
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