In order to detect the faint signal from primordial gravitational waves in the polarized CMB, understanding emission from the Galaxy and the instruments with which we make observations to a high precession is vital. The BeyondPlanck project tackled this problem by sampling for both the instrumental and Galactic parameters within a single unified framework.
In this talk I will outline the work we have done to apply minimal analog-to-digital converter (ADC) corrections to the Planck Low-Frequency Instrument (LFI) time-ordered data, highlighting the level of the corrections compared to cosmological signals. Second, I will cover how we used the resulting suite of BeyondPlanck maps to constrain the level of polarized anomalous microwave emission to less than a few percent for sensible Galactic synchrotron models. Finally, I will preview ongoing work to leverage these techniques to test models of Galactic thermal dust emission within the microwave frequency range.
This Friday colloquium will be hybrid. Attendees can therefore participate either in-person or via Zoom. Please join via Zoom at
https://uio.zoom.us/j/69001043754?pwd=cEJpbVE5ci9PdWNtRld2TDNNcGtKdz09
Meeting ID:690 0104 3754
Passcode: PeiseStua3
Attendees will be muted during the colloquium, but will have the opportunity to ask questions at the end by clicking on the "raise hand” button (or send a request via chat).