Aside from the obvious fact that space hasn't ever been shown to "expand", let alone "accelerate, it would appear that there is a great void in the heart of dark energy theory. A few years back some authors wrote a paper that suggested that the concept of acceleration (and dark energy) could be an optical illusion based on our unique location in the universe. It used GR theory to discuss the curvature and geometry of a spacetime environment that we might observe if we were living inside of a low density region of space (a void) rather than an area of average mass density.
The Cosmic Void: Could we be in the Middle of it? - Universe Today
[0807.1443] Living in a Void: Testing the Copernican Principle with Distant Supernovae
Later papers tried to refute this idea by suggesting that we didn't really live in a void, but more recent studies tend to counter those arguments:
Does the Milky Way Live in a Void? - Sky & Telescope
If indeed our galaxy sits in a void, the whole concept of 'dark energy" become geometrically irrelevant. The concept of acceleration and dark energy could simply be an optical illusion that is caused by our unique location in the universe.
I personally do not believe that the cause of photon redshift is "space expansion" or "space acceleration" in the first place, but even based on their own LCDM model, dark energy theory could be on very shaky footing depending on our location and our local density conditions. It's an interesting dilemma for the mainstream, particularly since that metaphysical bad boy makes up the vast majority of LCDM theory.
Stay tuned.....
The Cosmic Void: Could we be in the Middle of it? - Universe Today
[0807.1443] Living in a Void: Testing the Copernican Principle with Distant Supernovae
Later papers tried to refute this idea by suggesting that we didn't really live in a void, but more recent studies tend to counter those arguments:
Does the Milky Way Live in a Void? - Sky & Telescope
If indeed our galaxy sits in a void, the whole concept of 'dark energy" become geometrically irrelevant. The concept of acceleration and dark energy could simply be an optical illusion that is caused by our unique location in the universe.
I personally do not believe that the cause of photon redshift is "space expansion" or "space acceleration" in the first place, but even based on their own LCDM model, dark energy theory could be on very shaky footing depending on our location and our local density conditions. It's an interesting dilemma for the mainstream, particularly since that metaphysical bad boy makes up the vast majority of LCDM theory.
Stay tuned.....