Speaker
Description
One of the greatest challenges faced by CMB experiments is the detailed modeling and subtraction of Galactic foregrounds. Observations across multiple frequencies are necessary to constrain the synchrotron SED as well as to disentangle it from other foregrounds such as free-free emission. CHIPASS, a continuum reprocessing of the HI Parkes All Sky Survey (HIPASS) with an angular resolution of 14.4 arcmin, offers a unique window on the synchrotron foreground with the potential to constrain spectral index variations and curvature as well as to reveal small-scale structures. The Cosmoglobe collaboration has begun integrating in raw time-ordered data from CHIPASS in combination with other low-frequency datasets such as Haslam, S-PASS, and others. Here we present a preliminary look at the re-analyzed CHIPASS data.