Corpus ID: 119118896

Using the SED to locate the Gamma-ray emission site of powerful blazars

  title={Using the SED to locate the Gamma-ray emission site of powerful blazars},
  author={Markos Georganopoulos and Eileen T. Meyer and Giovanni Fossati},
  journal={arXiv: High Energy Astrophysical Phenomena},
The location of the Gamma-ray emission of powerful blazars is a matter of active debate. Is the location within the UV emitting sub-pc scale broad line region, or farther out at pc scales where the molecular torus IR emission dominates? We present a diagnostic that connects three observables, the synchrotron and external Compton peak frequencies and the Compton dominance (the ratio of Compton to synchrotron luminosity) to the seed photon energy and energy density. We discuss encouraging… Expand

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