Speaker
Description
The combination of the data from upcoming large-scale structure surveys - such as Euclid and the Rubin Observatory Legacy Survey of Space and Time (LSST) - and CMB lensing experiments - like the Simons Observatory - offers a powerful tool to test deviations from $\Lambda CDM$. Yet, the robustness of these tests depends on our understanding of observational and astrophysical systematics. In this talk, I will present an investigation into the systematic effects that can have influence on the constraints on modified gravity models and dynamical dark energy scenarios. Specifically, I will focus on likelihood-based analyses and the biases introduced by photometric redshift errors in galaxy surveys, residuals of Galactic foregrounds in CMB anisotropy maps, and lensing magnification effect.
| Other topic / keywords: | Modified Gravity, Cosmological Models, Photometric Error, Galactic Foreground Residuals, Magnification Bias |
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