The current generation of cosmological surveys is mapping vast volumes of the Universe with exquisite precision, delivering high-precision cosmological measurements and constraints. This advance demands a commensurate advance in theoretical precision. To fully exploit this wealth of data, it is essential to account for general relativistic effects in the modelling of cosmological observables, as these become increasingly important on the largest scales.
This workshop continues the established series of meetings on GR Effects in Cosmology, following previous editions in Cape Town (2016), Zurich (2017), Sexten (2018), Zurich (2019), Porto (2022), Geneva (2024), and Garching (2025). The Aegina meeting aims to broaden the scope of the series by bridging developments in relativistic modelling with recent progress on novel observables and methodologies in large-scale structure surveys. Alongside advances in relativistic modelling, the meeting emphasises the development of new observables and analysis techniques designed to optimally and robustly extract information from high-precision data.
The conference will bring together researchers working on theory, simulations, and observations to exchange ideas and discuss how relativistic effects and innovative analysis strategies can be leveraged to probe gravity and the fundamental properties of the Universe in the era of precision cosmology.