{
  "id": "1607.03771",
  "version": "v1",
  "published": "2016-07-13T14:34:52.000Z",
  "updated": "2016-07-13T14:34:52.000Z",
  "title": "Evidence for quasi-periodic oscillations in the optical polarization of the blazar PKS 2155-304",
  "authors": [
    "N. W. Pekeur",
    "A. R. Taylor",
    "S. B. Potter",
    "R. C. Kraan-Korteweg"
  ],
  "comment": "5 pages, 5 figures, accepted for publication in MNRAS",
  "categories": [
    "astro-ph.HE"
  ],
  "abstract": "Evidence for the presence of quasi-periodic oscillations (QPOs) in the optical polarization of the blazar PKS 2155-304, during a period of enhanced gamma-ray brightness, is presented. The periodogram of the polarized flux revealed the existence of a prominent peak at $T\\sim 13$ min, detected at >99.7% significance, and $T\\sim 30$ min, which was nominally significant at >99%. This is the first evidence of QPOs in the polarization of an active galactic nucleus, potentially opening up a new avenue of studying this phenomenon.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2016-07-13T14:34:52.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "blazar pks",
      "quasi-periodic oscillations",
      "optical polarization",
      "enhanced gamma-ray brightness",
      "prominent peak"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 5,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}