{
  "id": "1807.04738",
  "version": "v1",
  "published": "2018-07-12T17:42:57.000Z",
  "updated": "2018-07-12T17:42:57.000Z",
  "title": "The KMOS^3D Survey: Demographics and Properties of Galactic Outflows at z = 0.6 - 2.7",
  "authors": [
    "N. M. Förster Schreiber",
    "H. Übler",
    "R. L. Davies",
    "R. Genzel",
    "E. Wisnioski",
    "S. Belli",
    "T. Shimizu",
    "D. Lutz",
    "M. Fossati",
    "R. Herrera-Camus",
    "J. T. Mendel",
    "L. J. Tacconi",
    "D. Wilman",
    "A. Beifiori",
    "G. Brammer",
    "A. Burkert",
    "C. M. Carollo",
    "R. I. Davies",
    "F. Eisenhauer",
    "M. Fabricius",
    "S. J. Lilly",
    "I. Momcheva",
    "T. Naab",
    "E. J. Nelson",
    "S. Price",
    "A. Renzini",
    "R. Saglia",
    "A. Sternberg",
    "P. van Dokkum",
    "S. Wuyts"
  ],
  "comment": "Submitted to the Astrophysical Journal. 34 pages, 13 Figures",
  "categories": [
    "astro-ph.GA"
  ],
  "abstract": "We present a robust census of ionized gas outflows in normal galaxies at 0.6<z<2.7 with 9.0<log(M*/Msun)<11.7. The sample of 599 objects fairly homogeneously covers the main sequence (MS) of star-forming galaxies, and probes into the regimes of quiescent galaxies and starburst outliers. The data are mostly from the KMOS^3D survey, with deep, integral field spectroscopy of the Ha, [NII], and [SII] line emission. About 1/3 of the sample exhibits outflows, roughly equally split into winds driven by star formation (SF) and by active galactic nuclei (AGN). The incidence of SF-driven winds correlates mainly with star formation properties. These outflows have a typical velocity of ~450 km/s and local electron density of n_e ~ 380 cm^-3, leading to modest mass loading factors of ~ 0.1-0.2 at all galaxy masses. Their energetics are compatible with momentum driving by the young stellar populations. The SF-driven winds may escape only from log(M*/Msun) < 10.3 galaxies. Faster AGN-driven outflows (~1000-2000 km/s) are detected above log(M*/Msun)~10.7, in up to ~75% of galaxies at log(M*/Msun)>11.2, and are roughly twice as common as X-ray detected AGN. The incidence, strength, and velocity of AGN-driven winds strongly correlates with stellar mass and central concentration. Their outflowing ionized gas appears to be denser (n_e ~ 1000 cm^-3), and possibly compressed and shock-excited by hotter wind fluid. These winds have comparable inferred mass loading factors as the SF-driven winds but carry roughly 10 times more momentum and 50 times more energy. The results robustly confirm our previous findings of high duty cycle, energy-driven outflows powered by AGN above the Schechter mass, which may contribute to quench star formation in high mass galaxies at the peak epoch of galaxy formation. [ABRIDGED]",
  "revisions": [
    {
      "version": "v1",
      "updated": "2018-07-12T17:42:57.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "galactic outflows",
      "inferred mass loading factors",
      "properties",
      "demographics",
      "ionized gas"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 34,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}