When we look at cosmic web images, what do we see?

In summary, the conversation discusses the images of the cosmic web and the expectation that the view would change as galaxies age. However, the universe is homogeneous with respect to time, not across time. The images shown are from a computer simulation, specifically showing redshift and structure formation data. The conversation also includes links to articles and a paper discussing the simulation in more detail.
  • #1
awcrowe
16
1
Looking at images of the cosmic web, I would have expected the view to change the older the galaxies are. I understand homogeneous nature of the universe however, I thought it would have been as viewed in the same time reference.

Basically the universe is homogeneous with respect to time not across time.

So what are these images showing the universe at 13+ billion years or something else?


google search
https://www.google.ca/search?q=cosm...OU2wXy9IDACw&ved=0CAgQ_AUoAQ&biw=1280&bih=594
 
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  • #2
Actually its showing a computer simulation, essentially its redshift data, large scale structure formation data etc

http://www.universetoday.com/81813/astronomy-without-a-telescope-the-edge-of-greatness/

if you click on each image, there is a corresponding link to the page its originally posted on. LOL some of the articles don't bother reading though

http://www.mpa-garching.mpg.de/galform/millennium/

the last link has some of the simulation details and some of the redshift simulation details as per different stages of evolution

here is the paper on it

http://arxiv.org/abs/astro-ph/0504097

if I recall it took 512 processors, could be off its been awhile since I last read the article, saved a copy in my archives
 
Last edited:

1. What is the cosmic web?

The cosmic web is a large-scale structure of the universe made up of mostly dark matter and gas, with galaxies and galaxy clusters forming at the intersections of filaments.

2. How are cosmic web images created?

Cosmic web images are created using data from telescopes and simulations to map out the distribution of matter in the universe. This data is then visualized using computer algorithms to create the images we see.

3. What can we learn from studying cosmic web images?

Studying cosmic web images can provide insights into the formation and evolution of the universe, as well as the distribution of matter and the role of dark matter in shaping the structure of the universe.

4. Are there any patterns or structures in cosmic web images?

Yes, cosmic web images often show a web-like structure with filaments connecting galaxy clusters and voids where there is less matter. This structure is a result of the gravitational pull of dark matter.

5. Can we see the cosmic web with the naked eye?

No, the cosmic web is only visible through telescopes and simulations. The filaments of the cosmic web are spread out over vast distances and would not be visible to the naked eye.

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