X-ray astronomy in 2019

Every 10 years, X-ray astronomers gather in Bologna, Italy, to review the state of the field. After 30 years of these meetings, is there really still a separate field of X-ray astronomy?

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Fig. 1: Improvement in resolution since the time of Galileo Galilei.
Fig. 2: Known X-ray sources.

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Correspondence to Martin Elvis.

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Elvis, M. X-ray astronomy in 2019. Nat Astron 4, 23–25 (2020). https://doi.org/10.1038/s41550-019-0937-2

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