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Explore how the eROSITA X-ray telescope serves as a central hub for multi-tracer cosmological studies in this 43-minute conference talk by Emmanuel Artis from the Max Planck Institute for Extraterrestrial Physics. Discover the innovative methods for combining X-ray observations with other wavelength surveys to advance our understanding of astrophysics and cosmology. Learn about the synergies between eROSITA's X-ray data and other large-scale structure tracers, including cosmic microwave background measurements, galaxy clustering, gravitational lensing, and intensity mapping techniques. Understand how cross-correlation studies between different observational probes can enhance cosmological parameter constraints and provide new insights into dark matter, dark energy, and the evolution of cosmic structure. Gain insights into the technical aspects of multi-probe analysis and the statistical methods used to extract maximum scientific value from combining diverse astronomical datasets. This presentation was delivered as part of the New Synergies in Multi-Probe Cosmology conference at the Kavli Institute for Theoretical Physics, focusing on cutting-edge approaches to understanding the universe through coordinated observations across the electromagnetic spectrum.
