{
  "id": "1810.00374",
  "version": "v1",
  "published": "2018-09-30T13:32:52.000Z",
  "updated": "2018-09-30T13:32:52.000Z",
  "title": "Dark Matter in the Central Region of NGC 3256",
  "authors": [
    "Israa Abdulqasim Mohammed Ali",
    "Chorng-Yuan Hwang",
    "Zamri Zainal Abidin",
    "Adele Laurie Plunkett"
  ],
  "comment": "26 pages, 7 figures, accepted by Sains Malaysiana",
  "journal": "Sains Malaysiana, 47(6), 1241-1249 (2018)",
  "doi": "10.17576/jsm-2018-4706-20",
  "categories": [
    "astro-ph.GA"
  ],
  "abstract": "We investigated the central mass distribution of the luminous infrared galaxy NGC 3256 at a distance of 35 Mpc by using CO(1-0) observations of the Atacama Large Millimeter and sub-millimeter Array (ALMA) and near-IR data of the Two Micron Sky Survey (2MASS). We found that there is a huge amount of invisible dynamical mass ($4.84 \\times 10^{10} M_{\\odot}$) in the central region of the galaxy. The invisible mass is likely caused by some dark matter, which might have a cuspy dark matter profile. We note that this dark matter is difficult to explain with the conventional Modified Newtonian Dynamics (MOND) model, which is only applicable at a low acceleration regime, whereas the acceleration at the central region of the galaxy is relatively strong. Therefore, this discovery might pose a challenge to the conventional MOND models.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2018-09-30T13:32:52.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "central region",
      "conventional mond models",
      "central mass distribution",
      "atacama large millimeter",
      "conventional modified newtonian dynamics"
    ],
    "tags": [
      "journal article"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 26,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}