The dipole of the luminosity distance: a direct measure of H(z)

Bonvin, Camile, Durrer, Ruth and Kunz, Martin (2006) The dipole of the luminosity distance: a direct measure of H(z). Physical Review Letters, 96 (19). 91302.1-191302.4. ISSN 0031-9007

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We show that the dipole of the luminosity distance is a useful observational tool which allows us to determine the Hubble parameter as a function of redshift H(z). We determine the number of supernovae needed to achieve a given precision for H(z) and to distinguish between different models for dark energy. We analyze a sample of nearby supernovae and find a dipole consistent with the cosmic microwave background at a significance of more than 2sigma.

Item Type: Article
Additional Information: Shows how the dipole of the angular distribution of supernovae measures the Hubble parameter as function of redshift, and that the low-z dipole is consistent with the CMB one. The result follows from an earlier paper by Bonvin and Durrer, I did the numerical analysis for this paper. (16 HEP/SPIRES citations)
Schools and Departments: School of Mathematical and Physical Sciences > Physics and Astronomy
Depositing User: Martin Kunz
Date Deposited: 06 Feb 2012 18:34
Last Modified: 02 Jul 2019 21:37

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