The cosmic web, a vast interconnected network of voids, sheets, filaments and clusters, serves as the large-scale scaffolding upon which galaxies form and evolve. It is plausible that these large-scale environments exert an influence on the galaxy properties. Using observational data from Sloan Digital Sky Survey (SDSS), we explored the correlations among key galaxy properties such as colour, stellar mass, specific star formation rate and stellar metallicity and examined whether these associations exhibit any dependence on the geometric environments of the cosmic web.
Image credit : Illustris TNG Simulation
Nandi et al., 2024
The three-point correlation function or its Fourier counterpart the bispectrum are the lowest order statistics which quantify the non-Gaussianity in the large-scale structures (LSS) in the Universe.