Galaxy properties and the cosmic web in simulations

Metuki, O.; Libeskind, N.I.; Hoffman, Y.; Crain, R.A.; Theuns, T.

doi:10.1093/mnras/stu2166

Galaxy properties and the cosmic web in simulations

Metuki, O.; Libeskind, N.I.; Hoffman, Y.; Crain, R.A.; Theuns, T.

Authors

O. Metuki

N.I. Libeskind

Y. Hoffman

R.A. Crain

Professor Tom Theuns tom.theuns@durham.ac.uk
Professor

Abstract

We seek to understand the relationship between galaxy properties and their local environment, which calls for a proper formulation of the notion of environment. We analyse the Galaxies-Intergalactic Medium Interaction Calculation suite of cosmological hydrodynamical simulations within the framework of the cosmic web as formulated by Hoffman et al., focusing on properties of simulated dark matter haloes and luminous galaxies with respect to voids, sheets, filaments, and knots – the four elements of the cosmic web. We find that the mass functions of haloes depend on environment, which drives other environmental dependence of galaxy formation. The web shapes the halo mass function, and through the strong dependence of the galaxy properties on the mass of their host haloes, it also shapes the galaxy-(web) environment dependence.

Citation

Metuki, O., Libeskind, N., Hoffman, Y., Crain, R., & Theuns, T. (2015). Galaxy properties and the cosmic web in simulations. Monthly Notices of the Royal Astronomical Society, 446(2), 1458-1468. https://doi.org/10.1093/mnras/stu2166

Journal Article Type	Article
Acceptance Date	Oct 6, 2014
Publication Date	Jan 11, 2015
Deposit Date	Apr 7, 2015
Publicly Available Date	Apr 15, 2015
Journal	Monthly Notices of the Royal Astronomical Society
Print ISSN	0035-8711
Electronic ISSN	1365-2966
Publisher	Royal Astronomical Society
Peer Reviewed	Peer Reviewed
Volume	446
Issue	2
Pages	1458-1468
DOI	https://doi.org/10.1093/mnras/stu2166
Keywords	Galaxies: evolution, Galaxies: haloes, Large-scale structure of Universe.
Related Public URLs	http://adsabs.harvard.edu/abs/2015MNRAS.446.1458M

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This article has been accepted for publication in Monthly notices of the Royal Astronomical Society. © 2014 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.