Speaker
Jaime Forero-Romero
(Universidad de los Andes)
Description
In this work, we study the correlation between galaxy orientations and filaments of the cosmic web using observational measurements. We used bright galaxies observations from the Dark Energy Spectroscopic Instrument (DESI). The cosmic web filaments were computed using the Discrete Persistent Source Extractor (DisPerSE) algorithm. We found the closest filament segment to each galaxy. These segments were projected in the RA-Dec plane to compute their tilt. Compared with the galaxy orientation in the same plane, we found a high alignment between the galaxies' direction and the tilt of their nearest filament segment. This alignment evidence will allow us to understand the effect of the galaxies' properties on the filamentary structure.
Authors
Jaime Forero-Romero
(Universidad de los Andes)
John F. Suárez-Pérez
(Universidad de Los Andes)
