تقرير
Contemporaneous Imaging Comparisons of the Spotted Giant $\sigma$ Geminorum Using Interferometric, Spectroscopic, and Photometric Data
| العنوان: | Contemporaneous Imaging Comparisons of the Spotted Giant $\sigma$ Geminorum Using Interferometric, Spectroscopic, and Photometric Data |
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| المؤلفون: | Roettenbacher, Rachael M., Monnier, John D., Korhonen, Heidi, Harmon, Robert O., Baron, Fabien, Hackman, Thomas, Henry, Gregory W., Schaefer, Gail H., Strassmeier, Klaus G., Weber, Michael, Brummelaar, Theo A. ten |
| سنة النشر: | 2017 |
| المجموعة: | Astrophysics |
| مصطلحات موضوعية: | Astrophysics - Solar and Stellar Astrophysics |
| الوصف: | 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. Comment: Accepted to ApJ, 19 pages, 16 figures, 5 tables |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.3847/1538-4357/aa8ef7 |
| URL الوصول: | http://arxiv.org/abs/1709.10109 |
| رقم الأكسشن: | edsarx.1709.10109 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.3847/1538-4357/aa8ef7 |
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