What caused the large scale structure of the universe?

The Large-Scale Structure of the Universe Where the density of particles was higher, gravity attracted yet more particles, especially dark matter. The dark matter in turn attracted ordinary matter, and galaxies and galaxy clusters grew where enough material collected.

What is phase transition in universe?

Phase Transitions in the Early Universe As we move backwards in time towards the moment of creation, prior to one hundredth of a second, the Universe becomes hotter and denser until matter actually changes its phase, that is, it changes its form and properties. An everyday analogue familiar to all is simply water.

What is the largest scale structure of the Universe?

The Caelum Supercluster is a collection of over 550,000 galaxies. It is the largest of all galaxy superclusters. Also known as the Coma Wall. The Saraswati Supercluster consists of 43 massive galaxy clusters, which include Abell 2361 and ZWCl 2341.1+0000.

Does the Universe have a large scale structure?

The Universe exhibits structure over a wide range of physical scales – from satellites in orbit around a planet through to the galaxy superclusters, galactic sheets, filaments and voids that span significant fractions of the observable Universe.

What does the large scale structure of the universe look like?

Large scale structure is defined as the structure or inhomogeneity of the Universe on scales larger than that of a galaxy. The maps display a rich structure with a foam-like pattern, containing possible walls or filaments with long strands of galaxies, clusters, and large empty regions.

How are galaxies arranged on the largest scales?

Galaxies are grouped together in clusters. Galaxy clusters often group together with other clusters to form large-scale structures called superclusters, which can extend over distances of several hundred million light-years.

What causes a phase transition?

Phase transitions occur when the thermodynamic free energy of a system is non-analytic for some choice of thermodynamic variables (cf. phases). This condition generally stems from the interactions of a large number of particles in a system, and does not appear in systems that are too small.

How does the large scale structure of the universe look like?

What is the connection between dark matter and the formation of large and small scale structures?

It is clear that if dark matter dominates in the matter budget of the Universe, then the properties of dark matter particles determine the formation and evolution of the structure of the Universe. In this way the dark matter problem is related to the large-scale structure of the Universe.

What is known about the large scale distribution of galaxies in the Universe?

Galaxies are not distributed randomly throughout the universe, but are grouped in graviationally bound clusters. Recent observations show that superclusters are arranged in sheets with huge voids in between, and that matter in the universe is arranged in a filamentary structure.