Abstract
BL Lac objects are an enigmatic class of active galactic nuclei. They are characterized by high luminosity, a flat radio spectrum that steepens at higher energies, relatively high optical and radio polarization, rapid variability and an optical continuum with weak or absent emission lines (see Urry and Padovani, 1995 for a recent review).
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© 1996 International Astronomical Union
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Stanghellini, C., Cassaro, P., Bondi, M., Dallacasa, D., Ceca, R.D., Zappalà, R.A. (1996). Arcsecond Scale Polarization of BL Lac Objects. In: Ekers, R., Fanti, C., Padrielli, L. (eds) Extragalactic Radio Sources. International Astronomical Union, vol 175. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-0295-4_22
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DOI: https://doi.org/10.1007/978-94-009-0295-4_22
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