Review of Spectroscopic Determination of Extra Spatial Dimensions in the Early Universe
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🌌 astro-ph
keywords
transitionsdimensionsearlyextramolecularreviewspatialuniverse
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Atomic and molecular transitions for high Z objects in the early universe give bounds to the possible existence of extra spatial dimensions $D = 3+\epsilon$. We review the theory and present observational data, based on Lyman and Balmer hydrogen transitions of distant quasars and CO rotational transitions of far away giant molecular clouds.
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