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Nexus of the cosmic web.

Cautun, M. and van de Weygaert , R. and Jones, B.J.T. and Frenk, C.S. and Hellwing , W.A. (2015) 'Nexus of the cosmic web.', in Thirteenth Marcel Grossmann meeting on recent developments in theoretical and experimental general relativity, astrophysics, and relativistic field theories. , pp. 2115-2117.

Abstract

One of the important unknowns of current cosmology concerns the effects of the large scale distribution of matter on the formation and evolution of dark matter haloes and galaxies. One main difficulty in answering this question lies in the absence of a robust and natural way of identifying the large scale environments and their characteristics. This work summarizes the NEXUS+ formalism which extends and improves our multiscale scale-space MMF method. The new algorithm is very successful in tracing the Cosmic Web components, mainly due to its novel filtering of the density in logarithmic space. The method, due to its multiscale and hierarchical character, has the advantage of detecting all the cosmic structures, either prominent or tenuous, without preference for a certain size or shape. The resulting filamentary and wall networks can easily be characterized by their direction, thickness, mass density and density profile. These additional environmental properties allows to us to investigate not only the effect of environment on haloes, but also how it correlates with the environment characteristics.

Item Type:Book chapter
Full text:(AM) Accepted Manuscript
First Live Deposit - 29 November 2016
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(522Kb)
Status:Peer-reviewed
Publisher Web site:http://dx.doi.org/10.1142/9789814623995_0371
Publisher statement:Electronic version of an article published as Thirteenth Marcel Grossmann meeting on recent developments in theoretical and experimental general relativity, astrophysics, and relativistic field theories, 2015, pp. 2115-2117, 10.1142/9789814623995_0371 © 2015 copyright World Scientific Publishing Company http://www.worldscientific.com/worldscibooks/10.1142/9194
Record Created:29 Nov 2016 09:59
Last Modified:29 Nov 2016 10:26

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