{
  "id": "1611.05260",
  "version": "v1",
  "published": "2016-11-16T13:01:45.000Z",
  "updated": "2016-11-16T13:01:45.000Z",
  "title": "A search for non-hidden broad-line region Seyfert 2 galaxies",
  "authors": [
    "Georgi P. Petrov"
  ],
  "comment": "7 pages, 2 figures",
  "categories": [
    "astro-ph.GA"
  ],
  "abstract": "According to the unified model of active galactic nuclei, Seyfert 2 galaxies are physically the same as Seyfert 1 objects and they possess a broad-line region (BLR), but it is hidden from the observer due to their orientation. In the past few years, various authors reported that not all Seyfert 2 galaxies harbor a BLR. We compiled a sample of 38 Seyfert 2 galaxies to find non-hidden broad-line region (non-HBLR) objects. Using the theory of Nicastro et al. which suggests the existence of a critical value of the Eddington ratio below which BLR can't be formed, we found 26 non-HBLR Seyfert 2 candidates. We found also that 5 of these 26 non-HBLR objects could be low-ionization nuclear emission-line regions (LINERs).",
  "revisions": [
    {
      "version": "v1",
      "updated": "2016-11-16T13:01:45.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "non-hidden broad-line region seyfert",
      "low-ionization nuclear emission-line regions",
      "eddington ratio",
      "non-hblr seyfert",
      "non-hblr objects"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 7,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}