Johannes Røsok Eskilt

Johannes Røsok Eskilt is a Guest Researcher at the Department of Theoretical Astrophysics, University of Oslo, focusing on cosmic birefringence, cosmology, and dark energy dynamics through projects like Cosmoglobe and BeyondPlanck.

• Education: M.Sc. in Fundamental Theoretical Physics (2020), Imperial College London; Visiting Student (2018), University of California, Berkeley; M.Tech. in Applied Physics (2019), Norwegian University of Science and Technology.

His research explores cosmic topology, isotropic cosmic birefringence, and multifield dark energy models using data from WMAP, Planck, and advanced statistical methods like Bayesian analysis. Recent work emphasizes machine learning applications in manifold classification and end-to-end error propagation in CMB studies.

Key awards include the Fulbright Scholarship (2017-2018) and Studforsk Stipend (2016-2017). He contributes to open science initiatives, ensuring reproducibility and data longevity in astrophysical research.