TY - RPRT TI - Probing circular polarization and magnetic field structure in active galactic nuclei AU - Kramer, Joana Anna [Max-Planck-Institut für Radioastronomie, Bonn (Germany); Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)] (ORCID:0009000330110454) AU - Müller, Hendrik [National Radio Astronomy Observatory, Socorro, NM (United States); Max-Planck-Institut für Radioastronomie, Bonn (Germany)] AU - Röder, Jan [Max-Planck-Institut für Radioastronomie, Bonn (Germany); Instituto de Astrofísica de Andalucía, Granada (Spain)] (ORCID:000000022426927X) AU - Ros, Eduardo [Max-Planck-Institut für Radioastronomie, Bonn (Germany)] (ORCID:0000000195034892) PY - 2025 DO - 10.1051/0004-6361/202347707 UR - https://www.osti.gov/biblio/2588070 ID - 2588070 ER -