articleAnnual Review of Astronomy and AstrophysicsJun 23, 2012GREEN OA

Observational Evidence of Active Galactic Nuclei Feedback

ACA. C. Fabian

University of Cambridge

Indexed inarxivcrossref

Abstract

Radiation, winds, and jets from the active nucleus of a massive galaxy can interact with its interstellar medium, and this can lead to ejection or heating of the gas. This terminates star formation in the galaxy and stifles accretion onto the black hole. Such active galactic nuclei (AGN) feedback can account for the observed proportionality between the central black hole and the host galaxy mass. Direct observational evidence for the radiative or quasar mode of feedback, which occurs when AGN are very luminous, has been difficult to obtain but is accumulating from a few exceptional objects. Feedback from the kinetic or radio mode, which uses the mechanical energy of radio-emitting jets often seen when AGN are…

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Topics & keywords

Topics
Keywords
  • Physics
  • Astrophysics
  • Active galactic nucleus
  • Intracluster medium
  • Astronomy
  • Galaxy
  • Cooling flow
  • Radiative cooling
UN Sustainable Development Goals
  • Affordable and clean energy
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