The impact of the connectivity of the cosmic web on the physical properties of galaxies at its nodes
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Date
2019
Journal Title
Journal ISSN
Volume Title
Publisher
Oxford University Press
Abstract
We investigate the impact of the number of filaments connected to the nodes of the cosmic web on the physical properties of their galaxies using the Sloan Digital Sky Survey. We compare these measurements to the cosmological hydrodynamical simulations H ORIZON-(NO)AGN and SIMBA. We find that more massive galaxies are more connected, in qualitative agreement with theoretical predictions and measurements in dark-matter-only simulations. The star formation activity and morphology of observed galaxies both display some dependence on the connectivity of the cosmic web at a fixed stellar mass: Less star forming and less rotation supported galaxies also tend to have higher connectivity.
Description
Keywords
Surveys, Galaxies: formation, Large-scale structure of Universe, Galaxies at its nodes, Connectivity
Citation
Dave, R. et al. (2019). The impact of the connectivity of the cosmic web on the physical properties of galaxies at its nodes. Monthly Notices of the Royal Astronomical Society, 491(3), 4294–4309