ar X iv : 0 81 0 . 43 71 v 1 [ as tr o - ph ] 2 4 O ct 2 00 8 Welcome back , Polaris the Cepheid
نویسنده
چکیده
For about 100 years the amplitude of the 4 d pulsation in Polaris has decreased. We present new results showing a significant increase in the amplitude based on 4.5 years of continuous monitoring from the ground and with two satellite missions.
منابع مشابه
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تاریخ انتشار 2008