{
  "id": "1902.09077",
  "version": "v1",
  "published": "2019-02-25T03:47:33.000Z",
  "updated": "2019-02-25T03:47:33.000Z",
  "title": "Multi-wavelength variability of CGRaBS J0733+0456: identifying a distant $γ$-ray blazar at {\\it z} = 3.01",
  "authors": [
    "Neng-Hui Liao",
    "Li-Ming Dou",
    "Ning Jiang",
    "Yi-Zhong Fan",
    "Ting-Gui Wang"
  ],
  "comment": "11 pages, 4 figures and 1 table",
  "categories": [
    "astro-ph.HE"
  ],
  "abstract": "We report on OVRO, {\\it WISE}, {\\it Swift} and {\\it Fermi}-LAT observations of the high redshift blazar CGRaBS J0733+0456, from which significant variability in radio, infrared (IR) as well as $\\gamma$-ray domains are detected. Particularly, the amplitude of long-term IR variation is over one order of magnitude and the IR variability timescale is constrained as short as a few hours in the source frame. The IR and $\\gamma$-ray light curves are found to be rather similar. This is the first time to identify a $\\gamma-$ray blazar at redshift $z\\geq 3$ with multi-wavelength flux variations (flares). Broadband spectral energy distributions at different flux states are constructed and theoretically described. The $\\gamma-$ray flares from some blazars as distant as redshift $\\sim$ 5 are expected to be detectable for {\\it Fermi}-LAT.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2019-02-25T03:47:33.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "ray blazar",
      "multi-wavelength variability",
      "broadband spectral energy distributions",
      "high redshift blazar cgrabs",
      "multi-wavelength flux variations"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 11,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}