Abstract
THE effect on the night-time lower ionosphere of X radiation from celestial sources is a topic of some controversy1–4. An X-ray flare from Sco X-1 has been shown to have a daytime effect on the ionosphere5 and it has also been reported6 that celestial X-ray sources have a nocturnal effect on the lower ionosphere in certain conditions. Galactic X-ray ionisation has been shown7–9 to affect night-time geomagnetic field components.
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SASTRI, J., MURTHY, B. Geomagnetic effect associated with X-ray flare from Sco X-1. Nature 257, 35–36 (1975). https://doi.org/10.1038/257035a0
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DOI: https://doi.org/10.1038/257035a0
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