Galaxy properties and the cosmic web in simulations

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

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.
• Public URL: https://durham-repository.worktribe.com/output/1412818
• Related Public URLs: http://adsabs.harvard.edu/abs/2015MNRAS.446.1458M