Abstract
An excess of ionized hydrogen is found to lie in the spiral structure between the Sun and the galactic centre. Its electron temperature is 6,000 K, in contradiction to previous determinations.
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DAVIES, R., MATTHEWS, H. & PEDLAR, A. Recombination Line Emission from the Galactic Ridge. Nature Physical Science 238, 101–104 (1972). https://doi.org/10.1038/physci238101a0
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DOI: https://doi.org/10.1038/physci238101a0
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