114 citations · 432 across the 17 of their papers we have counts for
15 papers · 1 filter
SKA-VLBI Probes of High-energy Emission Processes in Relativistic Jets
M. Kadler, E. K. Bempong-Manful, P. G. Edwards +10
Relativistic jets in the nuclei of active galaxies are ubiquitous sources of high-energy emission. In particular, blazars represent the most luminous persistent X-ray and gamma-ray…
TELAMON: Effelsberg monitoring of AGN jets with very-high-energy astroparticle emission -- I. Program description and sample characterization
F. Eppel, M. Kadler, J. Heßdörfer +23
Aims. We introduce the TELAMON program which is using the Effelsberg 100-m telescope to monitor the radio spectra of active galactic nuclei (AGN) under scrutiny in astroparticle ph…
Radio jet precession in M81*
S. D. von Fellenberg, M. Janssen, J. Davelaar +5
We report four novel position angle measurements of the core region of M81* at 5GHz and 8GHz, which confirm the presence of sinusoidal jet precession of the M81 jet region as sugge…
VLBI Scrutiny of a New Neutrino-Blazar Multiwavelength-Flare Coincidence
F. Eppel, M. Kadler, E. Ros +20
In the past years, evidence has started piling up that some high-energy cosmic neutrinos can be associated with blazars in flaring states. On February 26, 2022, a new blazar-neutri…
Jet kinematics in the transversely stratified jet of 3C 84 A two-decade overview
G. F. Paraschos, T. P. Krichbaum, J. -Y. Kim +11
3C84 (NGC1275) is one of the brightest radio sources in the mm radio-bands, which led to a plethora of VLBI observations at numerous frequencies over the years. They reveal a two-s…
Locating the -ray emitting region in the quasar 4C +01.28
F. Rösch, M. Kadler, E. Ros +5
Determining the location of -ray emission in blazar jets is a challenging task. Pinpointing the exact location of -ray production within a relativistic jet can place strong c…