Bigger Rip with No Dark Energy

Details Bigger Rip with No Dark Energy Bigger Rip with No Dark Energy

2004-05-17

arxiv.org/abs/astro-ph/0405333v2

Astropart.Phys. 22 (2004) 307-312

Astronomy and Astrophysics

Astrophysics

10 pages latex including 2 figures. Grammar improved. References added

Scientific paper

10.1016/j.astropartphys.2004.08.

By studying a modified Friedmann equation which arises in an extension of general relativity which accommodates a time-dependent fundamental length $L(t)$, we consider cosmological models where the scale factor diverges with an essential singularity at a finite future time. Such models have no dark energy in the conventional sense of energy possessing a truly simple pressure-energy relationship. Data on supernovae restrict the time from the present until the Rip to be generically longer than the current age of the Universe.

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