Invited Talk - Plenary

Wednesday, 13 September 2023, 11:00   (H 0104 / virtual plenum)

Recent insights on galactic magnetic fields and cosmic ray electron transport from LOFAR

Volker Heesen
Uni Hamburg

Cosmic rays and magnetic fields are nowadays considered both important ingredients for understanding galaxy evolution. Low-frequency radio continuum observations are an excellent way to observe them via the means of synchrotron emission from cosmic-ray electrons and Faraday rotation. We present a survey of 45 nearby galaxies using radio continuum observations with the LOw Frequency ARray (LOFAR). We study the relation between radio continuum luminosity and star-formation rate, measure magnetic field strengths using the equipartition assumption, and explore the transport of both cosmic rays and magnetic fields in galactic winds.