Abstract:
Understanding the formation and evolution of galaxies requires more than just looking at the galaxies themselves; it demands a comprehensive characterization of the large-scale environment that feeds them. The Cosmic Web acts as the primary roadmap for the cycle of baryons, where filaments, sheets, and nodes dictate the gas accretion patterns and the gravitational assembly of matter. To bridge the gap between theoretical models and the high-resolution observations provided by facilities like JWST and ALMA, we must develop robust, physically motivated methods to classify these environments and quantify their impact on halo properties. This work presents a framework that connects quasi-linear cosmic web theory with state-of-the-art N-body simulations to establish a reproducible pipeline for environmental analysis. Our approach utilizes a theoretical model based on the Gram-Charlier expansion to predict the statistical distribution of the tidal-field and velocity-shear eigenvalues. By comparing these analytical predictions with numerical measurements, we provide a validated methodology to classify the cosmic web into four distinct environments: voids, sheets, filaments, and clusters.roadmap for the cycle of baryons, where filaments, sheets, and nodes dictate the gas accretion patterns and the gravitational assembly of matter. To bridge the gap between theoretical models and the high-resolution observations provided by facilities like JWST and ALMA, we must develop robust, physically motivated methods to classify these environments and quantify their impact on halo properties.
Speaker: Edward Olex (Universidad Autonoma de Madrid)
Title: The theory for the Cosmic Web
Mode: In-person
Host: Wojciech Hellwing
Venue: CFT PAN, room 203 / Zoom
https://us02web.zoom.us/j/84634549153?pwd=fRFCa4LdfKuvw7tYrQbmFCUS8oMMqD.1Meeting ID: 846 3454 9153
Passcode: 869686
