Quasar radio-loudness and the elliptical core problem

  title={Quasar radio-loudness and the elliptical core problem},
  author={Timothy S. Hamilton},
  journal={Monthly Notices of the Royal Astronomical Society},
  • T. Hamilton
  • Published 2010
  • Physics
  • Monthly Notices of the Royal Astronomical Society
The dichotomy between radio-loud and radio-quiet quasi-stellar objects (QSOs) is not simply one of host morphology. While spiral galaxies almost exclusively host radio-quiet QSOs, ellipticals can host either radio-louds or radio-quiets. We find that a combination of accretion rate and host scale determines which type of QSO a given elliptical galaxy will host. QSOs with high X-ray luminosities (above 10 44.5 erg s -1 at 0.5 keV) are mostly radio-loud. But those with low luminosities divide… Expand

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