Quintessence and variation of the fine structure constant in the CMBR

Details Quintessence and variation of the fine structure constant in the CMBR Quintessence and variation of the fine structure constant in the CMBR

2001-10-25

arxiv.org/abs/astro-ph/0110562v2

Phys.Rev. D65 (2002) 083001

Astronomy and Astrophysics

Astrophysics

5 pages, 3 figures. Several references added and a few minor typos corrected in the revised version

Scientific paper

10.1103/PhysRevD.65.083001

We study dependence of the CMB temperature anisotropy spectrum on the value of the fine structure constant $\alpha$ and the equation of state of the dark energy component of the total density of the universe. We find that bounds imposed on the variation of $\alpha$ from the analysis of currently available CMB data sets can be significantly relaxed if one also allows for a change in the equation of state.

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