FRW Universe Models in Conformally Flat Spacetime Coordinates. I: General Formalism
arXiv:1103.4743 · doi:10.1140/epjp/i2011-11028-6
Abstract
The 3-space of a universe model is defined at a certain simultaneity. Hence space depends on which time is used. We find a general formula generating all known and also some new transformations to conformally flat spacetime coordinates. A general formula for the recession velocity is deduced.
12 pages
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- Uniformly accelerated traveler in an FLRW universe
- Time dilation observed in Type Ia supernova light curves and its cosmological consequences
- Gravitational wave memory in conformally flat spacetimes