{
  "id": "1910.02392",
  "version": "v1",
  "published": "2019-10-06T07:38:31.000Z",
  "updated": "2019-10-06T07:38:31.000Z",
  "title": "Two New \"Turn-off\" Changing-look Active Galactic nuclei and Implication on \"Partially Obscured\" AGNs",
  "authors": [
    "J. Wang",
    "D. W. Xu",
    "Y. Wang",
    "J. B. Zhang",
    "J. Zheng",
    "J. Y. Wei"
  ],
  "comment": "10 pages, 6 figures and 2 tables, accepted by ApJ",
  "categories": [
    "astro-ph.GA"
  ],
  "abstract": "We here report a spectroscopic identification of two new changing-look AGNs (CL-AGNs): SDSS\\,J104705.16+544405.8 and SDSS\\,J120447.91+170256.8 both with a \"turn-off\" type transition from type 1 to type 1.8/1.9. The identification is arrived by a follow-up spectroscopic observation of the five changing-look AGN (CL-AGN) candidates that are extracted from the sample recently released in Macleod et al. The candidates are extract by the authors from the Sloan Digit Sky Survey Data Release 7 spectroscopically confirmed quasars with large amplitude variability. By compiling a sample of 26 previously identified CL-AGNs, we confirm the claim in Macleod et al. that CL-AGNs tend to be biased against low Eddington ratio, and identify an overlap between the CL-AGNs at their dim state and the so-called intermediate-type AGNs. The overlap implies that there two populations of the intermediate-type AGNs with different origins. One is due to the torus orientation effect, and the another the intrinsic change of the accretion rate of the central supermassive blackholes.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2019-10-06T07:38:31.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "changing-look active galactic nuclei",
      "sloan digit sky survey data",
      "implication",
      "changing-look agn",
      "intermediate-type agns"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 10,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}