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Sun-like stars show intensity fluctuations on a number of time scales due tovarious physical phenomena on their surfaces. These phenomena can convincinglybe studied in the frequency spectra of these stars - while the strongestsignatures usually originate from spots, granulation and p-mode oscillations,it has also been suggested that the frequency spectrum of the Sun contains asignature of faculae.  We have analyzed three stars observed for 13 months in short cadence (58.84seconds sampling) by the Kepler mission. The frequency spectra of all threestars, as for the Sun, contain signatures that we can attribute to granulation,faculae, and p-mode oscillations.  The temporal variability of the signatures attributed to granulation, faculaeand p-mode oscillations were analyzed and the analysis indicates a periodicvariability in the granulation and faculae signatures - comparable to what isseen in the Sun.

Observations of intensity fluctuations attributed to granulation and faculae on Sun-like stars from the Kepler mission