{
  "id": "1412.1728",
  "version": "v1",
  "published": "2014-12-04T16:52:22.000Z",
  "updated": "2014-12-04T16:52:22.000Z",
  "title": "Rotation Measures in AGN jets seen by VLA at 21 cm to 6 mm",
  "authors": [
    "E. V. Kravchenko",
    "W. D. Cotton",
    "Y. Y. Kovalev"
  ],
  "comment": "5 pages, 4 figures, 2 tables. To appear in the Proceedings of the IAU Symposium No. 313 Extragalactic jets from every angle, Galapagos, Ecuador, 15-19 September 2014, F. Massaro, C. C. Cheung, E. Lopez, and A. Siemiginowska (Eds.), Cambridge University Press",
  "categories": [
    "astro-ph.HE"
  ],
  "abstract": "We present Faraday Rotation Measure (RM) properties of seven active galactic nuclei (AGN), observed with the NRAO VLA at three epochs in 2012-2014. Data was taken at 1.4, 2.2, 5.0, 8.2, 15.4, 22.4, 33.5 and 43.1 GHz quasi simultaneously in full polarization mode. For the first time RMs were calculated in a range of wavelengths covering more than one order of magnitude: from 21 cm up to 6 mm. We measured RM for each source and showed a tendency to increase its value toward high frequencies according to the law |RM|~f^a with a=1.6+/-0.1. For 0710+439, we observed an increase over the frequency range of 4 orders of magnitude and measured one of the highest RM ever, (-89+/-1)*10^3 rad/m^2. Analysis of different epochs shows variations of the value and the sign of RM on short and long time-scales. This may be caused by changing physical conditions in the compact regions of the AGN jets, e.g. strength of magnetic field, particle density and so on.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2014-12-04T16:52:22.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "agn jets",
      "first time rms",
      "full polarization mode",
      "faraday rotation measure",
      "seven active galactic nuclei"
    ],
    "publication": {
      "doi": "10.1017/S1743921315002057"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 5,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 1332730,
      "adsabs": "2015IAUS..313..128K"
    }
  }
}