Jul 12 – 23, 2021
Europe/Berlin timezone

Magnetic field structure in halos of star-forming disk galaxies

Jul 12, 2021, 6:00 PM
1h 30m


Talk MM | Multi-Messenger Discussion


Prof. Ralf-Jürgen Dettmar (Ruhr University Bochum)


The CHANG-ES (Continuum HAlos in Nearby Galaxies - an EVLA Survey) project has observed a sample of 35 edge-on spiral galaxies with the JVLA in C- and L-band. The observations in all Stokes parameters provide polarization information and for 16 galaxies with extended emission it is possible to describe the large scale magnetic field structure in their halos. We exemplify a few of these objects and demonstrate the properties of the mean large-scale magnetic field structure as a result from a stacking experiment. We briefly compare the results with the Milky Way and discuss implications for the transport of cosmic ray electrons.


radiocontinuum polarization, magnetic fields, disk galaxy, CRE transport

Collaboration other (fill field below)
Subcategory Experimental Results
other Collaboration CHANG-ES

Primary author

Prof. Ralf-Jürgen Dettmar (Ruhr University Bochum)


Prof. Judith Irwin (Queen's University) Dr Volker Heesen (Hamburg University, Hamburg Observatory) Dr Yelena Stein (Ruhr University Bochum)

Presentation materials