Not exact matches
Analysis of 166 stars found almost a quarter — much more
than expected — had small, rocky
planets, which should force a change in thinking on the overall
frequency of such bodies.
By tracking the
frequency at which certain starspots reappeared, Sanchis - Ojeda determined that the star completes a full rotation every 12.5 days — considerably longer
than the
planet's orbital period of 8.5 hours.
Based on several realistic estimates of this
frequency we conclude with very high confidence that this small signal is due to a super-Earth-size
planet (Kepler - 9d) in a multiple system, rather
than a false positive.