2024
DOI: 10.3847/1538-4357/ad2f2e
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AB Dor: Coronal Imaging and Activity Cycles

Gurpreet Singh,
J. C. Pandey

Abstract: Using long-term X-ray observations, we present short-term and long-term X-ray variability analysis of the ultrafast rotating active star AB Dor. Flaring events are common in X-ray observations of AB Dor and occupy a substantial portion of the total observation time, averaging at around 57% ± 23%. The flare-free X-ray light curves show rotational modulation, indicating the presence of highly active regions in the star's corona. We have developed a light-curve inversion code to image the corona of active fast ro… Show more

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