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

CHANG Zhe; LI Ming-Hua; LI Xin

doi:10.1088/1674-1137/36/8/005

Chinese Physics C> 2012, Vol. 36> Issue(8) : 710-715 DOI: 10.1088/1674-1137/36/8/005

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

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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 Ω_Λ 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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通讯作者: 陈斌, [email protected]

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沈阳化工大学材料科学与工程学院沈阳 110142

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

Corresponding author: LI Ming-Hua,

Received Date: 2011-12-08

Accepted Date: 2012-02-24

Available Online: 2012-08-05

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

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