Description
The C-Band All-Sky Survey (C-BASS) is a 5 GHz radio survey at 45 arcminute resolution in total intensity and polarisation. C-BASS provides a unique view of the Galactic synchrotron emission, which will be crucial for the success of future CMB missions such as Litebird and Simons Observatory, as well as for understanding astrophysical phenomena such as the Galactic magnetic field. Due to its unique frequency regime, C-BASS polarised data is predominantly dominated by polarised synchrotron radiation, which makes it an excellent data set for Galactic magnetic field modelling.
In this talk, I will focus on the first-ever large-scale comparison of all state-of-the-art Galactic magnetic field models with 5 GHz radio data. The comparison will be discussed both qualitatively and quantitatively, and I will focus on which models seem to best describe the radio data.
