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Principal Components of Recombination: Responses in the CMB power spectra

Hart and Chluba (2020, MNRAS)

Responses in the CMB power spectra and free electron fraction due to perturbations in the free electron fraction

Responses in the CMB power spectra and free electron fraction due to perturbations in the fine structure constant

Note: Fine structure constant effects include Thomson scattering rescaling, which leads to the large positive bumps in Xe.

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