On the Believability of Polar Spots
نویسنده
چکیده
Polar spots in Doppler Imaging maps of rapidly rotating late-type stars, especially the active components of RS CVn binaries, represent a major break with the solar paradigm, within which spots are only found at low latitudes. I examine critically the evidence for polar spots and point out that they are particularly sensitive to a number of systematic eeects relating to determining reference \zero-points".
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تاریخ انتشار 2007