{
  "id": "2208.04203",
  "version": "v1",
  "published": "2022-08-08T15:09:22.000Z",
  "updated": "2022-08-08T15:09:22.000Z",
  "title": "The effect of ionizing background fluctuations on the spatial correlations of high redshift Ly$α$-emitting galaxies",
  "authors": [
    "Avery Meiksin",
    "Teresita Suarez"
  ],
  "comment": "11 pages, 8 figures; accepted for publication in MNRAS",
  "categories": [
    "astro-ph.GA",
    "astro-ph.CO"
  ],
  "abstract": "We investigate the possible influence of fluctuations in the metagalactic photoionizing ultra-violet background (UVBG) on the clustering of Ly$\\alpha$-emitting galaxies through the modulation of the ionization level of the gas surrounding the systems. At redshifts $z > 5$, even when assuming the reionization of the intergalactic medium has completed, the fluctuations are sufficiently large that they may non-negligibly enhance, and possibly even dominate, the angular correlation function on scales up to a few hundred arcsecs. Whilst a comparison with observations at $z \\sim 5.7$ is statistically consistent with no influence of UVBG fluctuations, allowing for the fluctuations opens up the range of acceptable models to include those with relatively low bias factors for the Ly$\\alpha$-emitting galaxies. In this case, the evolution in the bias factor of Ly$\\alpha$-emitters over the approximate redshift range $3 < z < 7$ corresponds to a nearly constant halo mass for Ly$\\alpha$-emitting galaxies of $\\sim 10^{10.5}\\,M_\\odot$.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2022-08-08T15:09:22.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "emitting galaxies",
      "ionizing background fluctuations",
      "high redshift ly",
      "spatial correlations",
      "angular correlation function"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 11,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}