Abstract
We have used Exosat to map the distribution of X-ray emission in the galactic plane. In addition to numerous point sources, the map reveals a narrow continuous ridge of emission which extends along the galactic plane either side of the galactic centre out to ∼40° longitude. The origin of this feature remains uncertain although a major contribution from luminous discrete X-ray sources can be excluded.
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Warwick, R., Turner, M., Watson, M. et al. The galactic ridge observed by Exosat. Nature 317, 218–221 (1985). https://doi.org/10.1038/317218a0
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DOI: https://doi.org/10.1038/317218a0
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