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Review of Spectroscopic Determination of Extra Spatial Dimensions in the Early Universe

Douglas J. Buettner·P. D. Morley·Ivan Schmidt
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Abstract

Atomic and molecular transitions for high Z objects in the early universe give bounds to the possible existence of extra spatial dimensions $D = 3+ε$. 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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Douglas J. Buettner, P. D. Morley, Ivan Schmidt. 2003-12-16. Review of Spectroscopic Determination of Extra Spatial Dimensions in the Early Universe. https://arxiv.org/abs/astro-ph/0312425

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