Decaying Λ cosmologies and power spectrum

Details Decaying Λ cosmologies and power spectrum Decaying Λ cosmologies and power spectrum

Oct 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994phrvd..50.4890s&link_type=abstract

Physical Review D (Particles, Fields, Gravitation, and Cosmology), Volume 50, Issue 8, 15 October 1994, pp.4890-4894

Mathematics

Logic

121

Scientific paper

We investigate the evolution of matter density perturbations in a universe with a cosmological term that decreases with time as Λ~a-m. For fixed values of Ωm0 the power spectrum is constructed and we show that it is only slightly modified when the parameter m is changed from m=0 to m=2. Some properties concerning the peculiar velocity field are also discussed.

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