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Unstable by design

Author

Listed:
  • Aneta Siemiginowska

    (the Harvard-Smithsonian Center for Astrophysics)

  • Martin Elvis

    (the Harvard-Smithsonian Center for Astrophysics)

Abstract

Quasars - the most luminous type of active galactic nuclei in the Universe - may not be active all the time. There is a growing consensus that quasars may have unstable galactic disks and therefore radiate only 10% of the time. If all observed quasars represent the outburst state, then this would explain how they can be so luminous without running out of fuel.

Suggested Citation

  • Aneta Siemiginowska & Martin Elvis, 1999. "Unstable by design," Nature, Nature, vol. 397(6719), pages 476-479, February.
    • Handle: RePEc:nat:nature:v:397:y:1999:i:6719:d:10.1038_17223
    DOI: 10.1038/17223
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