I performed an observational study of diffuse linearly polarized synchrotron emission of a nearby galaxy and of extragalactic background sources in order to study cosmic magnetism. The speciality of my work is given by the ......

Galaxies with H₂O-megamaser-disks are low luminosity active galaxies where 22GHz H₂O-maser emission is detected in their accretion disk surrounding the central supermassive black hole (SMBH). Furthermore, ...