Gauge-invariant cosmological perturbation theory with seeds

Details Gauge-invariant cosmological perturbation theory with seeds Gauge-invariant cosmological perturbation theory with seeds

Oct 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990phrvd..42.2533d&link_type=abstract

Physical Review D (Particles and Fields), Volume 42, Issue 8, 15 October 1990, pp.2533-2540

Mathematics

Logic

62

Scientific paper

Gauge-invariant cosmological perturbation theory is extended to handle perturbations induced by seeds. A calculation of the Sachs-Wolfe effect is presented. A second-order differential equation for the growth of density perturbations is derived and the perturbation of Liouville's equation for collisionless particles is also given. The results are illustrated by a simple analytic example of a single texture knot, where we calculate the induced perturbations of the energy of microwave photons, of baryonic matter, and of collisionless particles.

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