Evolution of superclusters and supercluster cocoons in various cosmologies

نویسندگان

چکیده

We investigate the evolution of superclusters and supercluster cocoons (basins attraction), influence cosmological parameters to evolution. perform numerical simulations cosmic web for different models: LCDM model with a conventional value dark energy (DE) density, open OCDM no DE, standard SCDM Hyper-DE HCDM an enhanced DE density value. find ensembles these models five evolutionary stages, corresponding present epoch z = 0, redshifts 1, 3, 10, 30. use diameters largest number as percolation functions describe properties ensemble in web. analyse size mass distribution real Sloan Digital Sky Survey (SDSS) based samples. In all numbers volumes are independent on epochs. Supercluster masses increase time, geometrical sizes comoving coordinates decrease models. LCDM, have almost similar parameters. This suggests that essential parameter, which defines superclusters, is matter density. The influences growth amplitude perturbations, albeit significantly less strongly. has speed fluctuations, during Geometrical at high threshold densities larger than superclusters. about two times more other models; smaller masses.

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ژورنال

عنوان ژورنال: Astronomy and Astrophysics

سال: 2021

ISSN: ['0004-6361', '1432-0746']

DOI: https://doi.org/10.1051/0004-6361/202038358