论文标题
第四纪恒星系统v815 g矮人主要的表面活性
Surface activity of the G dwarf primary in the quaternary star system V815 Her
论文作者
论文摘要
我们研究了多个系统V815大力神中G矮人主要恒星的磁性活性。最近，Tess 26的数据显示，V815她实际上是一个四星级系统，该系统由长期轨道中的两个近距离二进制组成。我们为长期以来的“第三尸体” V815提供了初步的轨道解决方案，她的`b'本身就是两个M矮人的近距离二元。 G矮人的长期斑点活性以及其斑点表面的第一个多普勒图像重建。
We investigate the magnetic activity of the G dwarf primary star in the multiple system V815 Herculis. Recently, TESS Sector 26 data have revealed that V815 Her is in fact a four-star system consisting of two close binaries in a long-period orbit. We give preliminary orbital solution for the long-known but unseen "third body" V815 Her `B', which is itself a close eclipsing binary of two M dwarfs. Long-term spot activity of the G dwarf is presented along with the very first Doppler image reconstructions of its spotted surface.
