Formation of large scale structures

An animation by the Max Planck Institute showing the formation of large-scale structures in the dark matter distribution, from redshift z=20 to the present time (a value of 20 for z = 13,915 Mly's- http://hyperphysics.phy-astr.gsu.edu/hbase/astro/hubble.html#c3). The movie is centered on a forming rich cluster of galaxies.
More videos- http://www.mpa-garching.mpg.de/galform/data_vis/

Category:

Howto & Style

Tags:

• max
• planck
• big
• bang
• universe
• formation

[gadionson1]

this video is amazing

[puncheex]

@chainsore: z is an inverse measure of time (that is, it gets smaller as simulated time advances), and it is logarithmic, so that near the end it slows down. If it were just linear time, all of the collapse would happen right near the end. After some study, and as itsafarcry says, it is a measurement of redshift.

The line at the bottom shows the size of 50 megaparsecs of length. A parsec is 3.26 light years, so 50 Mpc is about 163 million light years.

[puncheex]

@Mueiwark: You misunderstand the scale of the view. The red are galaxies, way too small to be seen individually, thousands together making a red haze that slowly collapses together under gravity.

[puncheex]

@cmarcallen: No, the red is regular and dark matter together in galaxies represented by red dots too small to show individually. They collapse towards each other under gravity, leaving the empty voids between them in 13 billuion years of time.

[chodaboy51500]

The blue areas are the absence of dark mater. Dark matter is what holds the galaxies and super clusters together.

Dark energy is everywhere uniformly. It is a property of space itself. The blue areas are where dark energy is more influential than gravity due to the absence of matter and dark matter.

[cmarcallen]

Looks like the neural networking in the brain. I wonder if the blue area represents expanding dark matter/energy?

[Mueiwark]

That's how the gallaxys probably have formed. Awesome.

[chainsore]

what is z and whats mpc ????