Corpus ID: 119426373

A tale of two distances

@article{Kunz2004ATO,
  title={A tale of two distances},
  author={Martin Kunz and Bruce A. Bassett},
  journal={arXiv: Astrophysics},
  year={2004}
}
There are two basic ways to measure physical distances in cosmology: One based on standard candles and one based on standard rulers. Comparing current data for each method allows us to rule out axion-photon mixing and dust-extinction as the sources of supernova dimming and generally protects the case for cosmic acceleration from attacks based on loss of photons. The combined data constrains the energy densities in a LCDM model to 0.19 < Omega_m < 0.32 and 0.47 < Omega_Lambda < 0.82 (at 2\sigma… Expand

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