{
  "id": "1312.4543",
  "version": "v3",
  "published": "2013-12-16T21:00:06.000Z",
  "updated": "2014-02-06T07:39:30.000Z",
  "title": "Fundamental Mass-Spin-Morphology Relation of Spiral Galaxies",
  "authors": [
    "Danail Obreschkow",
    "Karl Glazebrook"
  ],
  "comment": "Astrophysical Journal accepted 17/01/2014, 19 pages, 16 figures, 1 table",
  "journal": "ApJ 784 26, 2014",
  "doi": "10.1088/0004-637X/784/1/26",
  "categories": [
    "astro-ph.GA",
    "astro-ph.CO"
  ],
  "abstract": "This work present high-precision measurements of the specific baryon angular momentum jb, contained in stars, atomic gas, and molecular gas, out to ~10 scale radii, in 16 nearby spiral galaxies of the THINGS sample. The accuracy of these measurements improves on existing studies by an order of magnitude, leading to the discovery of a strong correlation between the baryon mass Mb, jb, and the bulge mass fraction B/T, fitted by B/T=-(0.34+-0.03)*log(jb/Mb/[1e-7 kpc km/s/Msun])-(0.04+-0.01) on the full sample range of B/T=0.00-0.32 and Mb/Msun=1e9-1e11. The corresponding relation for the stellar quantities Ms and js is identical within the uncertainties. These M-j-B/T relations likely originate from the proportionality between j/M and the surface density of the disk that dictates its stability against (pseudo-)bulge formation. Using a CDM model, we can approximately explain classical scaling relations, such as the fundamental plane of spiral galaxies, the Tully-Fisher relation, and the mass-size relation, in terms of the M-j-B/T relation. These results advocate the use of mass and angular momentum as the most fundamental quantities of spiral galaxies.",
  "revisions": [
    {
      "version": "v3",
      "updated": "2014-02-06T07:39:30.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "spiral galaxies",
      "fundamental mass-spin-morphology relation",
      "explain classical scaling relations",
      "specific baryon angular momentum jb",
      "m-j-b/t relation"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "journal": "The Astrophysical Journal",
      "year": 2014,
      "month": "Mar",
      "volume": 784,
      "number": 1,
      "pages": 26
    },
    "note": {
      "typesetting": "TeX",
      "pages": 19,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 1269675,
      "adsabs": "2014ApJ...784...26O"
    }
  }
}