{
  "id": "astro-ph/0109155",
  "version": "v1",
  "published": "2001-09-10T15:15:30.000Z",
  "updated": "2001-09-10T15:15:30.000Z",
  "title": "H_2 molecules in damped systems",
  "authors": [
    "R. Srianand",
    "P. Petitjean",
    "C. Ledoux"
  ],
  "comment": "4 pages. To appear in the Proceedings of the XVII IAP Colloquium \"Gaseous Matter in Galaxies and Intergalactic Space\"",
  "categories": [
    "astro-ph"
  ],
  "abstract": "Damped Lyman alpha systems seen in the spectra of high-z QSOs arise in high-density neutral gas in which molecular hydrogen (H_2) should be conspicuous. Systematic searches to detect the H_2 lines redshifted into the Lyman alpha forest at <3400\\AA are now possible thanks to the unique capabilities of UVES on the VLT. Here we summarise the present status of our on going programme to search for H_2 in DLAs, discuss the physical conditions in the systems where H_2 is detected and the implications of non-detections.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2001-09-10T15:15:30.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "damped systems",
      "damped lyman alpha systems",
      "high-z qsos arise",
      "high-density neutral gas",
      "lyman alpha forest"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 4,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 576722,
      "adsabs": "2001astro.ph..9155S"
    }
  }
}