Stars across the Hertzsprung–Russell diagram are known to emit X-rays, with only a few exceptions. In main-sequence solar-type and low-mass stars, the X-rays arise from a magnetically confined plasma ...
NASA’s Kepler Space Telescope has made the most comprehensive-ever observations of another sun-like star’s internal dynamo, say researchers. Observations of the star HD 173701 are being hailed by the ...
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