LIM25 - Annecy

Session

Contributed Talks 4: COMAP

3 juin 2025, 09:40

Laboratoire d'Annecy de Physique Théorique (LAPTh)

Présidents de session

Contributed Talks 4: COMAP

• Nils-Ole Stutzer (Institute of Theoretical Astrophysics, University of Oslo)
• Patrick Breysse (Southern Methodist University)
• Jonas Lunde
• Leah Hansen (University of Oslo)

Documents de présentation

Lunde_Stutzer_Hansen_Breysse_COMAP.pdf

80. COMAP data analysis: Lessons learned and future plans

Jonas Lunde

03/06/2025 09:40

This talk reflects on the present and future of data analysis techniques in line intensity mapping, with examples from COMAP. COMAP continues to integrate down and will soon achieve a sensitivity consistent with the level of our fiducial models, but proper handling of systematics and a robust data model will be vital in this effort. The Season 2 COMAP results utilized PCA filtering in order to...

61. Simulating systematics in COMAP

Leah Hansen (University of Oslo)

03/06/2025 09:55

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...

72. The COMAP power spectrum methodology towards a future CO detection

Nils-Ole Stutzer (Institute of Theoretical Astrophysics, University of Oslo)

03/06/2025 10:10

In this talk, we will present the state-of-the-art COMAP power spectrum methodology, discuss key lessons learned since the COMAP Season 2 release, and mention some advantages of a joint COMAP-Pathfinder and COMAP-Wide analysis. The COMAP power spectrum methodology relies on cross-correlating maps made by specific configurations of detectors and elevations, each with largely independent...

69. Reionization Cross-Correlations with COMAP-Wide

Patrick Breysse (Southern Methodist University)

03/06/2025 10:25

I will introduce COMAP-Wide, an extension to the ongoing CO Mapping Array Project. Currently, COMAP is operating an autocorrelation-focused CO intensity mapping survey targeting ~12 square degrees of total sky area. COMAP-Wide aims to complement this deep survey with a wide-area, cross-correlation-focused measurement of ~400 square degrees. The primary target of COMAP-Wide will be a...