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تسجيل مستخدم جديدContemporaneous Imaging Comparisons of the Spotted Giant $sigma$ Geminorum Using Interferometric, Spectroscopic, and Photometric Data
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Rachael M. Roettenbacher
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Nearby, active stars with relatively rapid rotation and large starspot structures offer the opportunity to compare interferometric, spectroscopic, and photometric imaging techniques. In this paper, we image a spotted star with three different methods for the first time. The giant primary star of the RS Canum Venaticorum binary $sigma$ Geminorum ($sigma$ Gem) was imaged for two epochs of interferometric, high-resolution spectroscopic, and photometric observations. The light curves from the reconstructions show good agreement with the observed light curves, supported by the longitudinally-consistent spot features on the different maps. However, there is strong disagreement in the spot latitudes across the methods.
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