![portrettbildet av en ung smilende man med briller](/astro/forskning/aktuelt/arrangementer/gjesteforelesninger-seminarer/fredagskollokvium/2022/images/daniher_large.jpg)
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.
![collage of images and plots](/astro/forskning/aktuelt/arrangementer/gjesteforelesninger-seminarer/fredagskollokvium/2022/images/overview_figure.jpg)
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).