{
  "id": "astro-ph/0407218",
  "version": "v1",
  "published": "2004-07-12T09:04:34.000Z",
  "updated": "2004-07-12T09:04:34.000Z",
  "title": "Star Formation at Redshift One: Preliminary results from an H-alpha Survey",
  "authors": [
    "M. Doherty",
    "A. Bunker",
    "R. Sharp",
    "G. Dalton",
    "I. Parry",
    "I. Lewis",
    "E. MacDonald",
    "C. Wolf"
  ],
  "comment": "4 pages, 1 figure, to appear in the proceedings of the XXXIXth Rencontres de Moriond \"Exploring the Universe\"",
  "categories": [
    "astro-ph"
  ],
  "abstract": "We present the first successful demonstration of multi-object near-infrared spectroscopy on high redshift galaxies. Our objective is to address the true star formation history of the universe at z~1, a crucial epoch which some have suggested is the peak of star formation activity. By using H-alpha -the same robust star formation indicator used at low-z - redshifted into the J- and H-bands, we can trace star formation without the systematic uncertainties of different calibrators, or the extreme dust extinction in the rest-UV, which have plagued previous efforts. We are using the instrument CIRPASS (the Cambridge Infra-Red PAnoramic Survey Spectrograph), in multi-object mode, which has been successfully demonstrated on the Anglo-Australian Telescope (AAT) and the William Herschel Telescope (WHT). CIRPASS has 150 fibres deployable over \\~40arcmin on the AAT and ~15arcmin on the WHT. Here we present preliminary results from one of our fields observed with the WHT: H-alpha detections of z~1 galaxies in the Hubble Deep Field North.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2004-07-12T09:04:34.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "preliminary results",
      "h-alpha survey",
      "robust star formation indicator",
      "cambridge infra-red panoramic survey spectrograph",
      "true star formation history"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 4,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 654142,
      "adsabs": "2004astro.ph..7218D"
    }
  }
}