{
  "id": "1602.02188",
  "version": "v1",
  "published": "2016-02-05T23:13:04.000Z",
  "updated": "2016-02-05T23:13:04.000Z",
  "title": "Radio Non-Detection of the SGR 1806-20 Giant Flare and Implications for Fast Radio Bursts",
  "authors": [
    "Shriharsh P. Tendulkar",
    "Victoria M. Kaspi",
    "Chitrang Patel"
  ],
  "comment": "9 pages, 3 figures. Submitted to ApJ",
  "categories": [
    "astro-ph.HE"
  ],
  "abstract": "We analyse archival data from the Parkes radio telescope which was observing a location 35.6$^\\circ$ away from SGR 1806-20 during its giant $\\gamma$-ray flare of 2004 December 27. We show that no FRB-like burst counterpart was detected, and set a radio limit of 11 MJy at 1.4 GHz, including the suppression of the signal due to the predicted scattering and its location in the far side lobe of Parkes. A conservative upper limit for the magnetar giant flare radio to $\\gamma$-ray fluence ratio is $\\eta_\\mathrm{SGR}<10^{6.9}\\,\\mathrm{Jy\\,ms\\,erg^{-1}\\,cm^{2}}$. Based on the non-detection of a short and prompt $\\gamma$-ray counterpart of fifteen FRBs in $\\gamma$-ray transient monitors, we set a lower limit on the fluence ratios of FRBs to be $\\eta_\\mathrm{FRB} >10^{6.8-8.9}\\,\\mathrm{Jy\\,ms\\,erg^{-1}\\,cm^{2}}$. The fluence ratio limit for SGR 1806-20 is inconsistent with all but one of the fifteen FRBs. We discuss possible variations in the magnetar-FRB emission mechanism and observational caveats that may reconcile the theory with observations.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2016-02-05T23:13:04.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "fast radio bursts",
      "radio non-detection",
      "implications",
      "magnetar giant flare radio",
      "analyse archival data"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 9,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2016arXiv160202188T",
      "inspire": 1420099
    }
  }
}