A Structure Larger than the Sloan Great Wall?

  • Context: Graduate 
  • Thread starter Thread starter Petradog
  • Start date Start date
  • Tags Tags
    Structure Wall
Click For Summary
SUMMARY

The discussion centers on the potential discovery of a galactic wall larger than the Sloan Great Wall, prompted by new measurements from the Sloan Digital Sky Survey (SDSS). Participants express skepticism about the existence of such structures, noting that the SDSS does not cover the entire sky, leaving room for new findings. The conversation also touches on the topology of the universe at scales beyond current understanding, questioning the existence of voids and the infinite nature of the universe. Overall, there is a consensus that current data is insufficient to definitively address these questions.

PREREQUISITES
  • Understanding of cosmic structures, including superclusters and galactic walls.
  • Familiarity with the Sloan Digital Sky Survey (SDSS) and its limitations.
  • Knowledge of cosmological theories regarding the universe's topology.
  • Basic principles of astrophysics and the concept of voids in the universe.
NEXT STEPS
  • Research the latest findings from the Sloan Digital Sky Survey (SDSS) and its implications for cosmic structure.
  • Explore advanced topics in cosmology, such as the large-scale structure of the universe.
  • Investigate theories regarding the infinite nature of the universe and its implications.
  • Study the mathematical models used to describe cosmic topology and voids.
USEFUL FOR

Astronomers, cosmologists, astrophysicists, and anyone interested in the large-scale structure of the universe and the implications of new astronomical measurements.

Petradog
Messages
28
Reaction score
0
Does anyone believe, given new measurements from the SDSS, that we will discover a galactic wall that exceeds the size of the Sloan Great Wall?

Also, what is larger than the galactic filaments connecting to form the walls?

Can somebody please provide the proper topology of what the universe should look like at scales ten times the largest of supercluster-made sheets, walls, voids, ect...?

And if you can provide these hypothetical structures, do you suppose they'll make filaments and walls too? ad infinitum?

Are there voids between these "new" galactic larger walls? What do you think? What would it look like if you zoomed out and saw everything at once?
 
Space news on Phys.org
Petradog said:
Does anyone believe, given new measurements from the SDSS, that we will discover a galactic wall that exceeds the size of the Sloan Great Wall?
Why not? The SDSS doesn't even cover half the sky, so there's definitely a lot of room to discover a larger structure.

As for the rest, those questions aren't so easily answered. And I have to go in a few minutes, so I'll leave this post at that.
 
What is the percentage of cosmologists, physicists, and mathematicians that believe the universe is truly infinite?
 
Petradog said:
What is the percentage of cosmologists, physicists, and mathematicians that believe the universe is truly infinite?
I'm not sure anybody's done that study. And I can't even given any impressions as it's not one of those things that physicists or cosmologists actually talk about much (I haven't hung out with mathematicians in a long time). My guess would be a relatively small percentage, as there is just insufficient data to make such a determination.

Working physicists (which includes cosmologists) tend to be completely uninterested in such questions, as there really is no way to resolve them with current information, or even with the sort of information we know we will be able to obtain in the future. A small subset of theorists (and sometimes philosophers) get into debates such as these. I'm not aware of mathematicians that do, but I suppose it's possible. But these people are a minority: most just do not think such questions have any relevance at all.
 
Thank you for answering my question.
 
Mathematics may not be a fully sufficient tool to explore such issues.
 

Similar threads

Graduate Thought this would be interesting - largest structure in Universe Discovered
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Do voids in the Universe influence the orientation of galaxies?
  • · Replies 62 ·
3
Replies
62
Views
9K
Graduate Semi-pop review of structure of universe
  • · Replies 1 ·
Replies
1
Views
2K
Admissions Could I please get critique on my SOP? (Experimental Biophysics)
  • · Replies 8 ·
Replies
8
Views
948
Graduate Is Our Understanding of the Universe Shaped by Archetypal Concepts?
  • · Replies 3 ·
Replies
3
Views
2K
Writing: Input Wanted What Makes Great Lakes Earth So Geographically Unique?
  • · Replies 6 ·
Replies
6
Views
4K
Graduate Singularities, dark matter, and dark energy. A connection?
  • · Replies 4 ·
Replies
4
Views
7K
Graduate Are Black Holes Made of Waveforms?
  • · Replies 4 ·
Replies
4
Views
3K
Graduate Analysis of the errors in explicitly correlated electronic structure theory
  • · Replies 0 ·
Replies
0
Views
2K
Undergrad Progress In Calculating The HLbL Contribution To Muon g-2
  • · Replies 0 ·
Replies
0
Views
2K