{
  "id": "1610.04189",
  "version": "v1",
  "published": "2016-10-13T17:57:14.000Z",
  "updated": "2016-10-13T17:57:14.000Z",
  "title": "HI and cosmological constraints from intensity mapping, optical, and CMB surveys",
  "authors": [
    "Alkistis Pourtsidou",
    "David Bacon",
    "Robert Crittenden"
  ],
  "comment": "10 pages, 6 tables, 2 figures; to be submitted in MNRAS",
  "categories": [
    "astro-ph.CO"
  ],
  "abstract": "We forecast constraints on neutral hydrogen (HI) and cosmological parameters using near-term intensity mapping surveys with instruments such as BINGO, MeerKAT, and the SKA, and Stage III and IV optical galaxy surveys. If foregrounds and systematic effects can be controlled - a problem which becomes much easier in cross-correlation - these surveys will provide exquisite measurements of the HI density and bias, as well as measurements of the growth of structure, the angular diameter distance, and the Hubble rate, over a wide range of redshift. We also investigate the possibility of detecting the late time ISW effect using the Planck satellite and forthcoming intensity mapping surveys, finding that a large sky survey with Phase 1 of the SKA can achieve a near optimal detection.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2016-10-13T17:57:14.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "cmb surveys",
      "cosmological constraints",
      "late time isw effect",
      "angular diameter distance",
      "near-term intensity mapping surveys"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 10,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}