根据MUSICOS 1998年观测的EI Eri的多普勒图和表面差异旋转
Doppler maps and surface differential rotation of EI Eri from the MUSICOS 1998 observations
摘要：
我们提出的时间序列多普勒图像的快速旋转的活跃的双星EI Eri从光谱观测收集在MUSICOS多站点活动在1998年，因为1.947天的关键旋转周期使得它不可能从一个单一的网站获得时间分辨的图像。从表面重建弱太阳型的差异旋转，以及微小的极向纬向流的测量。
英文摘要：
We present time-series Doppler images of the rapidly-rotating active binary star EI Eri from spectroscopic observations collected during the MUSICOS multi-site campaign in 1998, since the critical rotation period of 1.947 days makes it impossible to obtain time-resolved images from a single site. From the surface reconstructions a weak solar-type differential rotation, as well as a tiny poleward meridional flow are measured.
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