- #1
Gerinski
- 323
- 15
We assume that Lambda, the cosmological constant or "dark energy" is constant in all of spacetime (at least all of space). But what if it was not?
A lower value of Lambda in a certain region of space would mean that space's tendency to expand there is lower, and that might have the appearance of a "boost" of the gravitational attraction of massive particles and bodies in that region of space, perhaps giving the illusion that there is more mass than what we think there is.
In those regions, gravity would beat space's expansion, unlike the overall situation where expansion beats gravitational attraction and eventual collapse.
Could it be that the apparent excess of gravitational attraction, which we currently attribute to a mysterious massive matter (dark matter) is actually a lower Lambda value in that region of space, so that the gravitational strength between bodies in that region gets stronger than what we assume it should be?
TX
A lower value of Lambda in a certain region of space would mean that space's tendency to expand there is lower, and that might have the appearance of a "boost" of the gravitational attraction of massive particles and bodies in that region of space, perhaps giving the illusion that there is more mass than what we think there is.
In those regions, gravity would beat space's expansion, unlike the overall situation where expansion beats gravitational attraction and eventual collapse.
Could it be that the apparent excess of gravitational attraction, which we currently attribute to a mysterious massive matter (dark matter) is actually a lower Lambda value in that region of space, so that the gravitational strength between bodies in that region gets stronger than what we assume it should be?
TX