Resumen
Quiescent galaxies with little or no ongoing star formation dominate the population of galaxies with masses above 2 × 10 10 times that of the Sun; the number of quiescent galaxies has increased by a factor of about 25 over the past ten billion years (refs 1, 2, 3, 4). Once star formation has been shut down, perhaps during the quasar phase of rapid accretion onto a supermassive black hole, an unknown mechanism must remove or heat the gas that is subsequently accreted from either stellar mass loss or mergers and that would otherwise cool to form stars. Energy output from a black hole accreting at a low rate has been proposed, but observational evidence for this in the form of expanding hot gas shells is indirect and limited to radio galaxies at the centres of clusters, which are too rare to explain the vast majority of the quiescent population. Here we report bisymmetric emission features co-aligned with strong ionized-gas velocity gradients from which we infer the presence of centrally driven winds in typical quiescent galaxies that host low-luminosity active nuclei. These galaxies are surprisingly common, accounting for as much as ten per cent of the quiescent population with masses around 2 × 10 10 times that of the Sun. In a prototypical example, we calculate that the energy input from the galaxyâ(tm) s low-level active supermassive black hole is capable of driving the observed wind, which contains sufficient mechanical energy to heat ambient, cooler gas (also detected) and thereby suppress star formation.
| Idioma original | English |
|---|---|
| Páginas (desde-hasta) | 504-508 |
| Número de páginas | 5 |
| Publicación | Nature |
| Volumen | 533 |
| N.º | 7604 |
| DOI | |
| Estado | Published - may 25 2016 |
Nota bibliográfica
Funding Information:We are grateful to Y.-Y. Chang for checks on the SED fitting and implied SFR. We thank S. Juneau, J. Newman, H. Fu, K. Nyland, and S. F. Sánchez for discussions and comments. This work was supported by the World Premier International Research Center Initiative (WPI Initiative), MEXT, Japan, and JSPS KAKENHI grant no. 15K17603. A.W. acknowledges support of a Leverhulme Trust Early Career Fellowship. S.P. acknowledges support from the Japan Society for the Promotion of Science (JSPS long-term invitation fellowship). M.C. acknowledges support from a Royal Society University Research Fellowship. W.R. is supported by a CUniverse Grant (CUAASC) from Chulalongkorn University. Funding for the Sloan Digital Sky Survey IV (SDSS-VI) has been provided by the Alfred P. Sloan Foundation, the US Department of Energy Office of Science, and the Participating Institutions. SDSS-IV acknowledges support and resources from the Center for High-Performance Computing at the University of Utah. The SDSS website is www.sdss.org. SDSS-IV is managed by the Astrophysical Research Consortium for the Participating Institutions of the SDSS Collaboration, including the Brazilian Participation Group, the Carnegie Institution for Science, Carnegie Mellon University, the Chilean Participation Group, the French Participation Group, Harvard-Smithsonian Center for Astrophysics, Instituto de Astrofísica de Canarias, The Johns Hopkins University, Kavli Institute for the Physics and Mathematics of the Universe (IPMU)/University of Tokyo, Lawrence Berkeley National Laboratory, Leibniz Institut für Astrophysik Potsdam (AIP), Max-Planck-Institut für Astronomie (MPIA Heidelberg), Max-Planck-Institut für Astrophysik (MPA Garching), Max-Planck-Institut für Extraterrestrische Physik (MPE), National Astronomical Observatory of China, New Mexico State University, New York University, University of Notre Dame, Observatório Nacional/MCTI, The Ohio State University, Pennsylvania State University, Shanghai Astronomical Observatory, UK Participation Group, Universidad Nacional Autónoma de México, University of Arizona, University of Colorado Boulder, University of Oxford, University of Portsmouth, University of Utah, University of Virginia, University of Washington, University of Wisconsin, Vanderbilt University and Yale University.
Financiación
We are grateful to Y.-Y. Chang for checks on the SED fitting and implied SFR. We thank S. Juneau, J. Newman, H. Fu, K. Nyland, and S. F. S\u00E1nchez for discussions and comments. This work was supported by the World Premier International Research Center Initiative (WPI Initiative), MEXT, Japan, and JSPS KAKENHI grant no. 15K17603. A.W. acknowledges support of a Leverhulme Trust Early Career Fellowship. S.P. acknowledges support from the Japan Society for the Promotion of Science (JSPS long-term invitation fellowship). M.C. acknowledges support from a Royal Society University Research Fellowship. W.R. is supported by a CUniverse Grant (CUAASC) from Chulalongkorn University. Funding for the Sloan Digital Sky Survey IV (SDSS-VI) has been provided by the Alfred P. Sloan Foundation, the US Department of Energy Office of Science, and the Participating Institutions. SDSS-IV acknowledges support and resources from the Center for High-Performance Computing at the University of Utah. The SDSS website is www.sdss.org. SDSS-IV is managed by the Astrophysical Research Consortium for the Participating Institutions of the SDSS Collaboration, including the Brazilian Participation Group, the Carnegie Institution for Science, Carnegie Mellon University, the Chilean Participation Group, the French Participation Group, Harvard-Smithsonian Center for Astrophysics, Instituto de Astrof\u00EDsica de Canarias, The Johns Hopkins University, Kavli Institute for the Physics and Mathematics of the Universe (IPMU)/University of Tokyo, Lawrence Berkeley National Laboratory, Leibniz Institut f\u00FCr Astrophysik Potsdam (AIP), Max-Planck-Institut f\u00FCr Astronomie (MPIA Heidelberg), Max-Planck-Institut f\u00FCr Astrophysik (MPA Garching), Max-Planck-Institut f\u00FCr Extraterrestrische Physik (MPE), National Astronomical Observatory of China, New Mexico State University, New York University, University of Notre Dame, Observat\u00F3rio Nacional/MCTI, The Ohio State University, Pennsylvania State University, Shanghai Astronomical Observatory, UK Participation Group, Universidad Nacional Aut\u00F3noma de M\u00E9xico, University of Arizona, University of Colorado Boulder, University of Oxford, University of Portsmouth, University of Utah, University of Virginia, University of Washington, University of Wisconsin, Vanderbilt University and Yale University.
| Financiadores | Número del financiador |
|---|---|
| The Pennsylvania State University | |
| MPIA Heidelberg | |
| Max-Planck-Institut für Astronomie | |
| Leibniz-Institut für Astrophysik Potsdam | |
| University of Wisconsin-Madison | |
| The Johns Hopkins University | |
| Leverhulme Trust | |
| Instituto de Astrofísica de Canarias | |
| Ohio Water Resources Center, Ohio State University | |
| Universidad Nacional Autónoma de México, University of Arizona | |
| Maritime and Port Authority of Singapore | |
| IPMU | |
| Observatório Nacional | |
| Max-Planck-Institut für Astrophysik | |
| University of Utah Health | |
| Mellon College of Science, Carnegie Mellon University | |
| Lawrence Berkeley National Laboratory | |
| University of Colorado Boulder | |
| Notre Dame Integrated Imaging Facility, University of Notre Dame | |
| Alfred P Sloan Foundation | |
| Chulalongkorn University | |
| Kavli Institute for the Physics and Mathematics of the Universe | |
| Max-Planck-Institut für extraterrestrische Physik (MPE) | |
| Virginia Agricultural Experiment Station, Virginia Polytechnic Institute and State University | |
| University of Portsmouth | |
| Ministério da Ciência, Tecnologia e Inovação | |
| Yale University | |
| National Science Foundation Office of International Science and Engineering | |
| Royal Society of Medicine | |
| The George Washington University | |
| New Mexico State University, New York University | |
| Oxford Martin School, University of Oxford | |
| University of Tokyo | |
| Vanderbilt Digestive Diseases Research Center, Vanderbilt University Medical Center | |
| Ministry of Education, Culture, Sports, Science and Technology | |
| Japan Society for the Promotion of Science Fund for the Promotion of Joint International Research | 15K17603 |
| Japan Society for the Promotion of Science Fund for the Promotion of Joint International Research | |
| Science and Technology Facilities Council | ST/K00090X/1, ST/N000668/1 |
| Science and Technology Facilities Council | |
| UK Industrial Decarbonization Research and Innovation Centre | 53706 |
| UK Industrial Decarbonization Research and Innovation Centre |
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