{
  "id": "1407.4382",
  "version": "v2",
  "published": "2014-07-16T16:51:04.000Z",
  "updated": "2015-03-31T11:58:27.000Z",
  "title": "Classical bulges, supermassive blackholes and AGN feedback: Extension to low-mass galaxies",
  "authors": [
    "Zhankui Lu",
    "H. J. Mo"
  ],
  "comment": "5 pages, 3 figures, submitted to Astrophysical Journal",
  "categories": [
    "astro-ph.GA"
  ],
  "abstract": "The empirical model of Lu et al. 2014a for the relation between star formation rate and halo mass growth is adopted to predict the classical bulge mass ($M_{\\rm cb}$) - total stellar mass ($M_\\star$) relation for central galaxies. The assumption that the supermassive black hole (SMBH) mass ($M_{\\rm BH}$) is directly proportional to the classical bulge mass, with the proportionality given by that for massive galaxies, predicts a $M_{\\rm BH}$ - $M_\\star$ relation that matches well the observed relation for different types of galaxies. In particular, the model reproduces the strong transition at $M_\\star=10^{10.5}$ - $10^{11}M_{\\odot}$, below which $M_{\\rm BH}$ drops rapidly with decreasing $M_\\star$. Our model predicts a new sequence at $M_\\star <10^{10.5}M_{\\odot}$, where $M_{\\rm BH} \\propto M_\\star$ but the amplitude is a factor of $\\sim 50$ lower than the amplitude of the sequence at $M_\\star>10^{11}M_{\\odot}$. If all SMBH grow through similar quasar modes with a feedback efficiency of a few percent, the energy produced in low-mass galaxies at redshift $z\\gtrsim 2$ can heat the circum-galactic medium up to a specific entropy level that is required to prevent excessive star formation in low-mass dark matter halos.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2014-07-16T16:51:04.000Z",
      "comment": "5 pages, 3 figures, submitted to Astrophysical Journal Letters",
      "journal": null,
      "doi": null
    },
    {
      "version": "v2",
      "updated": "2015-03-31T11:58:27.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "low-mass galaxies",
      "agn feedback",
      "supermassive blackholes",
      "classical bulge mass",
      "low-mass dark matter halos"
    ],
    "publication": {
      "doi": "10.1088/0004-637X/802/2/110",
      "journal": "The Astrophysical Journal",
      "year": 2015,
      "month": "Apr",
      "volume": 802,
      "number": 2,
      "pages": 110
    },
    "note": {
      "typesetting": "TeX",
      "pages": 5,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 1306656,
      "adsabs": "2015ApJ...802..110L"
    }
  }
}