Constraints from Type Ia supernovae on the Λ-CDM model in Randers-Finsler space

  • Gravitational field equations in Randers-Finsler space of approximate Berwald type are investigated. A modified Friedmann equation and a new luminosity distance-redshift relation is proposed. A best-fit to the Type Ia supernovae (SNe) observations yields that the ΩΛ in the Λ-CDM model is suppressed to almost zero. This fact indicates that the astronomical observations on the Type Ia SNe can be described well without invoking any form of dark energy. The best-fit age of the universe is given. It is in agreement with the age of our galaxy.
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CHANG Zhe, LI Ming-Hua and LI Xin. Constraints from Type Ia supernovae on the Λ-CDM model in Randers-Finsler space[J]. Chinese Physics C, 2012, 36(8): 710-715. doi: 10.1088/1674-1137/36/8/005
CHANG Zhe, LI Ming-Hua and LI Xin. Constraints from Type Ia supernovae on the Λ-CDM model in Randers-Finsler space[J]. Chinese Physics C, 2012, 36(8): 710-715.  doi: 10.1088/1674-1137/36/8/005 shu
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Received: 2011-12-08
Revised: 2012-02-24
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Constraints from Type Ia supernovae on the Λ-CDM model in Randers-Finsler space

    Corresponding author: LI Ming-Hua,

Abstract: Gravitational field equations in Randers-Finsler space of approximate Berwald type are investigated. A modified Friedmann equation and a new luminosity distance-redshift relation is proposed. A best-fit to the Type Ia supernovae (SNe) observations yields that the ΩΛ in the Λ-CDM model is suppressed to almost zero. This fact indicates that the astronomical observations on the Type Ia SNe can be described well without invoking any form of dark energy. The best-fit age of the universe is given. It is in agreement with the age of our galaxy.

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