2–6 juin 2025
Laboratoire d'Annecy de Physique Théorique (LAPTh)
Fuseau horaire Europe/Paris

Simulating systematics in COMAP

3 juin 2025, 09:55
15m
Laboratoire d'Annecy de Physique Théorique (LAPTh)

Laboratoire d'Annecy de Physique Théorique (LAPTh)

9, chemin de Bellevue 74940 ANNECY France

Orateur

Leah Hansen (University of Oslo)

Description

In this talk we present a physically motivated signal simulation of the most central systematics in the COMAP telescope. While the Season 2 COMAP results provided the strongest constraints on cosmological CO line emission to date, 75% of the data were cut due to systematic errors. Properly understanding, and subsequently mitigating, the systematics are crucial in order to recover the lost data. This is an important step towards obtaining the first COMAP detection. The most significant systematics modeled are a detailed time-varying ground pickup model and a standing wave model. The systematics are simulated at the TOD level, and propagated through the COMAP data analysis pipeline. We present time-domain, map-domain and power spectra analysis of the simulated signal systematics before and after the pipeline filtering.

Author

Leah Hansen (University of Oslo)

Documents de présentation

Aucun document.