{
  "id": "astro-ph/0106029",
  "version": "v2",
  "published": "2001-06-01T22:14:48.000Z",
  "updated": "2001-06-07T13:28:25.000Z",
  "title": "Chandra observations of the X-ray jet in 3C66B",
  "authors": [
    "M. J. Hardcastle",
    "M. Birkinshaw",
    "D. M. Worrall"
  ],
  "comment": "9 pages, 6 figures. MNRAS accepted. v2; fix typo in core spectral index and UGC number",
  "journal": "Mon.Not.Roy.Astron.Soc. 326 (2001) 1499",
  "categories": [
    "astro-ph"
  ],
  "abstract": "Our Chandra observation of the FRI radio galaxy 3C66B has resulted in the first detection of an X-ray counterpart to the previously known radio, infra-red and optical jet. The X-ray jet is detected up to 7 arcsec from the core and has a steep X-ray spectrum, alpha ~ 1.3 +/- 0.1. The overall X-ray flux density and spectrum of the jet are consistent with a synchrotron origin for the X-ray emission. However, the inner knot in the jet has a higher ratio of X-ray to radio emission than the others. This suggests that either two distinct emission processes are present or that differences in the acceleration mechanism are required; there may be a contribution to the inner knot's emission from an inverse-Compton process or it may be the site of an early strong shock in the jet. The peak of the brightest radio and X-ray knot is significantly closer to the nucleus in the X-ray than in the radio, which may suggest that the knots are privileged sites for high-energy particle acceleration. 3C66B's jet is similar both in overall spectral shape and in structural detail to those in more nearby sources such as M87 and Centaurus A.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2001-06-07T13:28:25.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "chandra observation",
      "x-ray jet",
      "fri radio galaxy 3c66b",
      "overall x-ray flux density",
      "overall spectral shape"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "doi": "10.1111/j.1365-2966.2001.04699.x"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 9,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 575201
    }
  }
}