Landt, H.H.LandtPadovani, P.P.PadovaniPerlman, E.E.PerlmanGiommi, PaoloPaoloGiommi2020-09-172020-09-172005-01-01https://hdl.handle.net/20.500.13025/382Memorie della Societ Astronomica Italiana, v.76, p.136 (2005)We have recently discovered a population of strong-lined blazars with jet synchrotron emission peaks in the UV/X-ray regime. So far, only radio quasars with lower synchrotron energy cut-offs (and so X-rays dominated by inverse Compton emission) were known. Here we present the first VLA maps and preliminary results from XMM spectroscopy of these new class of blazars and discuss their relation to the high-energy peaked BL Lacertae objects.quasarsBL Lacertae objectssynchrotron emissionjetshttp://adsabs.harvard.edu/abs/2005MmSAI..76..136L2005MmSAI..76..136L