The far-IR/sub-mm wavelength range contains a wealth of diagnostic information that is important for understanding the role of active galactic nuclei (AGN) in...
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PublicationDeep Herschel observations of the 2 Jy sample: assessing the non-thermal and AGN contributions to the far-IR continuum
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PublicationDetection of an intranight optical hard lag with colour variability in blazar PKS 0735+178
Blazars are a highly variable subclass of active galactic nuclei that have been observed to vary significantly during a single night. This intranight...
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PublicationDetection of an X-Ray Jet in 3C 371 with Chandra
We report the detection at X-rays of the radio/optical jet of 3C 371 from a short (10 ks) Chandra exposure in 2000 March. We also present a new MERLIN...
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PublicationDetection of persistent VHE gamma-ray emission from PKS 1510-089 by the MAGIC telescopes during low states between 2012 and 2017
Context. PKS 1510-089 is a flat spectrum radio quasar strongly variable in the optical and GeV range. To date, very high-energy (VHE, > 100 GeV) emission has...
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PublicationDetection of very high energy gamma-ray emission from the gravitationally lensed blazar QSO B0218+357 with the MAGIC telescopes
Context. QSO B0218+357 is a gravitationally lensed blazar located at a redshift of 0.944. The gravitational lensing splits the emitted radiation into two...
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PublicationDetection of very-high energy γ-ray emission from NGC 1275 by the MAGIC telescopes
We report on the detection of very-high energy (VHE, E > 100 GeV) γ-ray emission from NGC 1275, the central radio galaxy of the Perseus cluster of galaxies. The...
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TalkDiscerning the location of the gamma-ray emission region in AGN blazars from multi-messenger and multi-spectral-range observations
Relativistic jets in AGN in general, and in blazars in particular, are the most energetic and among the most powerful astrophysical objects known so far. Their...
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PublicationDiscovery of a very luminous megamaser during a radio flare in the Seyfert 2 galaxy Mrk 348
We report the detection of a new H_2O megamaser in the Seyfert 2 galaxy Mrk 348 with the MPIfR 100 m telescope in Effelsberg. With an apparent isotropic...
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PublicationDisentangling the nature of the prototype radio weak BL Lac. Contemporaneous multifrequency observations of WISE J141046.00+740511.2
Context. The γ-ray emitting source WISE J141046.00+740511.2 has been associated with a Fermi-LAT detection by crossmatching with Swift/XRT data. It has shown...