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20042007
most citedPatterns of photometric and chromospheric variation among Sun-like stars: A 20-year perspective

229 citations · 483 across the 3 of their papers we have counts for

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astro-ph2004

High-amplitude, long-term X-ray variability in the solar-type star HD 81809: the beginning of an X-ray activity cycle?

F. Favata, G. Micela, S. L. Baliunas

We present the initial results from our XMM program aimed at searching for X-ray activity cycles in solar-type stars. HD 81809 is a G2-type star (somewhat more evolved than the Sun…