{
  "id": "2304.14387",
  "version": "v1",
  "published": "2023-04-27T17:52:42.000Z",
  "updated": "2023-04-27T17:52:42.000Z",
  "title": "Hierarchical structure of the cosmic web and galaxy properties",
  "authors": [
    "Mariana Jaber",
    "Marius Peper",
    "Wojciech A. Hellwing",
    "Miguel Angel Aragon-Calvo",
    "Octavio Valenzuela"
  ],
  "comment": "11 pages, 8 figures",
  "categories": [
    "astro-ph.GA",
    "astro-ph.CO"
  ],
  "abstract": "Voids possess a very complex internal structure and dynamics. Using $N$-body simulations we study the hierarchical nature of sub-structures present in the cosmic web (CW). We use the SpineWeb method which provides a complete characterization of the CW into its primary constituents: voids, walls, filaments, and nodes. We aim to characterize the inner compositions of voids by detecting their internal filamentary structure and explore the impact of this on the properties of void galaxies. Using a semi-analytical galaxy evolution model we explore the impact of the CW on several galaxies' properties. We find the fraction of haloes living in various CW components to be a function of their mass, with the majority of the haloes of mass below $10^{12}M_{\\odot}/h$, residing in voids and haloes of higher masses distributed mostly in walls. Similarly, in the Stellar-to-Halo mass relationship, we observe an environmental dependence for haloes of masses below $10^{12}M_{\\odot}/h$, showing an increased stellar mass fraction for the densest environments. The spin is lower for galaxies in the densest environments for the mass range of $10^{10}-10^{12}M_{\\odot}/h$. Finally, we found a strong trend of higher metallicity fractions for filaments and node galaxies, with respect to the full sample, in the range of $M_*<10^{10}M_{\\odot}/h$. Our results show that cosmic voids possess an intricate internal network of substructures. This in turn makes them a complex environment for galaxy formation, impacting in an unique way the properties and evolution of the chosen few galaxies that form inside them.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2023-04-27T17:52:42.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "cosmic web",
      "galaxy properties",
      "hierarchical structure",
      "densest environments",
      "higher metallicity fractions"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 11,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}