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A New Population of Radio Quasars

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Abstract

We present a new population of radio quasars whose X-ray band, unlike previously known sources which have (flat) inverse Compton radiation, is characterized by (steep) synchrotron emission, with a broad-band spectral energy distribution similar to that of BL Lacs with high energy synchrotron peaks. We discuss how this new class was discovered, the class properties, and the implications of its existence for our understanding of jets and active galactic nuclei in general.

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Author notes

  1. Eric Perlman

    Present address: Joint Center for Astrophysics, University of Maryland, 1000 Hilltop Circle, Baltimore, MD, 21250, U.S.A.

Authors and Affiliations

  1. Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, U.S.A.

    Paolo Padovani, Eric Perlman & Hermine Landt

  2. ESA Space Telescope Division, U.S.A.

    Paolo Padovani

  3. Hamburger Sternwarte, Gojenbergsweg 112, 21029, Hamburg, Germany

    Hermine Landt

  4. ASI Science Data Center, c/o ESRIN, Via G. Galilei, 00044, Frascati, Italy

    Paolo Giommi & Matteo Perri

  5. Dipartimento di Fisica, Università la Sapienza, Piazzale A. Moro 2, Rome, Italy

    Matteo Perri

Authors
  1. Paolo Padovani
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  2. Eric Perlman
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  3. Hermine Landt
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  4. Paolo Giommi
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  5. Matteo Perri
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Corresponding author

Correspondence to Paolo Padovani.

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Padovani, P., Perlman, E., Landt, H. et al. A New Population of Radio Quasars. Astrophys Space Sci 294, 71–78 (2004). https://doi.org/10.1007/s10509-004-4024-4

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  • DOI: https://doi.org/10.1007/s10509-004-4024-4

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