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The cosmic web in CosmoGrid void regions

Authors :
Rieder, Steven
van de Weygaert, Rien
Cautun, Marius
Beygu, Burcu
Zwart, Simon Portegies
Publication Year :
2014

Abstract

We study the formation and evolution of the cosmic web, using the high-resolution CosmoGrid \$\Lambda\$CDM simulation. In particular, we investigate the evolution of the large-scale structure around void halo groups, and compare this to observations of the VGS-31 galaxy group, which consists of three interacting galaxies inside a large void. The structure around such haloes shows a great deal of tenuous structure, with most of such systems being embedded in intra-void filaments and walls. We use the Nexus+ algorithm to detect walls and filaments in CosmoGrid, and find them to be present and detectable at every scale. The void regions embed tenuous walls, which in turn embed tenuous filaments. We hypothesize that the void galaxy group of VGS-31 formed in such an environment.<br />Comment: 5 pages, 3 figures, 1 table; Proceedings of IAU Symposium 308 "The Zeldovich Universe: Genesis and Growth of the Cosmic Web", 23-28 June 2014, Tallinn, Estonia

Details

Database :
arXiv
Publication Type :
Report
Accession number :
edsarx.1411.1276
Document Type :
Working Paper
Full Text :
https://doi.org/10.1017/S1743921316010607