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The Coronae of G Giants

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ESA Earth Online2026-06-22 收录
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We propose to perform XMMNewton observations of two slowly rotating G giants,HD 85444 and HD 141714, for a total exposure of 158 ksec. RGS and EPIC spectrawill be used to constrain the geometry of coronal loop systems in their coronae.Results will be compared with those obtained from the analysis of XMMNewtonspectra of rapidly rotating G giants. The study intend to test whether atransition from starsize magnetic structures to compact coronal arcades occursin the coronae of giants between slow and fast rotators. truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]

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European Space Agency
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