How does the discovery of Dark Energy make a big rip likely? As far as I know the best-fit models instead posit that gravitationally bound objects will remain together (supercluster scale) and become more and more isolated from each other over time, with the constant expansion causing there to be a ‘horizon’ beyond which you can not reach. The big rip models all require dark energy to change in parameters in a regular way over time don’t they?
Its all depends from constant parameter w which characterise dark energy, but is unknown for now. If w= −1, it will be your scenario, which is close to heat death.
How does the discovery of Dark Energy make a big rip likely? As far as I know the best-fit models instead posit that gravitationally bound objects will remain together (supercluster scale) and become more and more isolated from each other over time, with the constant expansion causing there to be a ‘horizon’ beyond which you can not reach. The big rip models all require dark energy to change in parameters in a regular way over time don’t they?
Its all depends from constant parameter w which characterise dark energy, but is unknown for now. If w= −1, it will be your scenario, which is close to heat death.
https://en.wikipedia.org/wiki/Big_Rip