{
  "id": "2012.10774",
  "version": "v1",
  "published": "2020-12-19T20:27:25.000Z",
  "updated": "2020-12-19T20:27:25.000Z",
  "title": "AGN jets and a fanciful trio of black holes in the Abell 85 Brightest Cluster Galaxy",
  "authors": [
    "Juan P. Madrid"
  ],
  "journal": "PASP, 133, 014101 (2021)",
  "doi": "10.1088/1538-3873/abc901",
  "categories": [
    "astro-ph.GA"
  ],
  "abstract": "A new radio map of the Abell 85 Brightest Cluster Galaxy (BCG) was obtained with the Karl G. Jansky Very Large Array (VLA). With a resolution of 0.02\", this radio image shows two kiloparsec-scale bipolar jets emanating from the active galactic nucleus of the Abell 85 BCG. The galaxy core appears as a single entity on the new radio map. It has been assumed that the Abell 85 BCG contained a binary black hole in its core. However, Chandra X-ray data and the new high-resolution radio map show no evidence that the Abell 85 BCG harbors a binary black hole. The assumption that this galaxy contains a binary black hole was based on the analysis of its optical surface brightness profile obtained under poor seeing conditions. We demonstrate how the well-known blurring effects of atmospheric seeing can mimic the effects of a binary supermassive black hole (SMBH). Likewise, SDSS J004150.75-091824.3 was postulated to be \"a third\" SMBH associated with the BCG. In the optical and X-rays, SDSS J004150.75-091824.3 is a point-like source located ~14\" away from the nucleus of the Abell 85 BCG. A new spectrum of SDSS J004150.75-091824.3, obtained with the 10.4-m Gran Telescopio Canarias, reveals that this source is a background quasar at a redshift of z=1.560+/-0.003 and not associated in any way with the Abell 85 cluster.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2020-12-19T20:27:25.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "brightest cluster galaxy",
      "binary black hole",
      "agn jets",
      "fanciful trio",
      "sdss j004150"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "IOP"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}