Cosmological relativity theories

Click For Summary

Discussion Overview

The discussion revolves around cosmological relativity theories, particularly focusing on the implications of distance and time in the context of the Big Bang and the perception of cosmic events from different galaxies. Participants explore the concept of how observers in different locations perceive the timing of the Big Bang and the nature of light travel across vast distances.

Discussion Character

  • Exploratory
  • Debate/contested
  • Technical explanation

Main Points Raised

  • One participant questions the timing of the Big Bang from the perspective of a galaxy 1 billion light years away, suggesting that observers there might perceive the event differently than those on Earth.
  • Another participant provides a link to a calculator that incorporates relativistic corrections, indicating that it helps illustrate the long travel time of light from distant objects.
  • A third participant mentions a specific paper on Cosmological General Relativity (CGR) and expresses confusion about the term "spacevelocity," suggesting it may be a novel concept introduced by the author, Carmeli.
  • A later reply inquires about any progress made in cosmological relativity theories over recent years.

Areas of Agreement / Disagreement

Participants do not reach a consensus; multiple competing views remain regarding the interpretation of cosmological events and the validity of the proposed theories.

Contextual Notes

There are limitations in definitions and the understanding of terms like "spacevelocity," which are not clearly defined in the referenced papers. The discussion also reflects varying levels of support for the theories mentioned, particularly regarding observational evidence.

Who May Find This Useful

Readers interested in cosmology, relativity theories, and the philosophical implications of observational astronomy may find this discussion relevant.

cosmoboy
Messages
64
Reaction score
0
If a galaxy is 1 billion light year far from us and if for us big bang
did happen 13 billion years ago then when it did happen for that galaxy ?

Pure guess will predict the answer 12 billion years, but what the observer on that galaxy will say about us ? will not he predict that we are close to big bang by one year ? just the opposite of what we predict here. Who is right ?

A new theory named 'cosmological theory of relativity' has been proposed.
read this here

http://www.arXiv.org/abs/astro-ph/0411180
http://www.arXiv.org/abs/astro-ph/0411181

Before saying that looking deep in space is identical to looking back in time make sure what time you are talking about.

cosmoboy
 
Last edited:
Astronomy news on Phys.org
Try this link and play with the calculator
http://www.earth.uni.edu/~morgan/ajjar/Cosmology/cosmos.html
It incorporates relativistic corrections and illustrates why light emitted by now distant objects took so long to reach us. I am familiar with Carmeli's papers. He is a bit of a maverick. That is not a bad thing. His papers are interesting, just not yet well supported by observational evidence.
 
Last edited by a moderator:
astro-ph/0411180 says that in Cosmological General Relativity (CGR), gravitation is described by a curved four-dimensional Riemannian spacevelocity. i never heard before the term spacevelocity, and is not defined in the paper. Probably is an idea of Carmeli coming from previous papers
 
Has there been any progress with these theories over the past few years?
 

Similar threads

High School How did Earth get so far away from other galaxies?
  • · Replies 12 ·
Replies
12
Views
3K
High School Distance of Stars / Size of the Universe calculation
  • · Replies 6 ·
Replies
6
Views
3K
Undergrad Galaxy MoM-z14 - furthest observed object
  • · Replies 9 ·
Replies
9
Views
2K
Graduate This is the most active place in the universe
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Could the Universe Be Much Older Than 13.8 Billion Years?
  • · Replies 3 ·
Replies
3
Views
3K
High School A thought on the expansion of the Universe
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Accelerating Galaxies: Cosmology's Unanswered Questions
  • · Replies 22 ·
Replies
22
Views
6K
Undergrad Does the Cosmological Principle in any way underpin Big Bang Theory?
  • · Replies 33 ·
2
Replies
33
Views
4K
Undergrad Too Much Dark Matter In CEG Mrk 1216
  • · Replies 2 ·
Replies
2
Views
3K
Undergrad Energy conservation in Doppler (NOT cosmological) redshifts?
  • · Replies 13 ·
Replies
13
Views
4K