The cosmic web as a research area focuses on the large-scale matter distribution in the Universe, characterized by a network of filaments, walls, nodes, and voids formed by gravitational amplification of primordial density fluctuations in dark matter and baryons. This field integrates cosmological simulations, large galaxy redshift surveys, weak gravitational lensing, and Lyα forest tomography to quantify the web’s topology, connectivity, and anisotropic collapse. Key objectives include constraining cosmological parameters, dark matter and dark energy models, galaxy formation and environmental effects, and testing structure-formation theories within the ΛCDM framework or its alternatives through statistical analysis of web morphology and dynamics.
Is it possible to understand the universe without understanding the largest structures that reside in it? In principle, not likely. In practical terms? Definitely not. Extremely large objects can distort our understanding ...
Astronomy
Feb 6, 2025
4
544
Matter in intergalactic space is distributed in a vast network of interconnected filamentary structures, collectively referred to as the cosmic web. With hundreds of hours of observations, an international team of researchers ...
Astronomy
Feb 5, 2025
79
1146
Across cosmic history, powerful forces have acted on matter, reshaping the universe into an increasingly complex web of structures. Now, new research led by Joshua Kim and Mathew Madhavacheril at the University of Pennsylvania ...
Astronomy
Jan 23, 2025
107
408
Galaxies are not islands in the cosmos. While globally the universe expands—driven by the mysterious "dark energy"—locally, galaxies cluster through gravitational interactions, forming the cosmic web held together by dark ...
Astronomy
Jan 7, 2025
0
78
How do you weigh one of the largest objects in the entire universe? Very carefully, according to new research.
Astronomy
Nov 21, 2024
1
72
Gravity has shaped our cosmos. Its attractive influence turned tiny differences in the amount of matter present in the early universe into the sprawling strands of galaxies we see today. A new study using data from the Dark ...
Astronomy
Nov 19, 2024
1
153
If you want to pinpoint your place in the universe, start with your cosmic address. You live on Earth->Solar System->Milky Way Galaxy->Local Cluster->Virgo Cluster->Virgo Supercluster->Laniakea. Thanks to new deep sky surveys, ...
Astronomy
Oct 7, 2024
3
1955
A new study has mapped out the gravitational basins of attraction in the local universe, offering fresh insights into the large-scale cosmic structures that shape the movement of galaxies. The study has been published in ...
Astronomy
Sep 27, 2024
1
259
