A seasonal amplitude model removes 63 to 65 percent of local spectral power in corrected Kepler DR25 flux for KIC 8164262

We test whether a known seasonal amplitude pattern can account for small peaks near the strong oscillation of KIC 8164262. A four-amplitude model with common phase removes 65.1 percent of a specified local spectral power measure in Kepler DR25 corrected flux, quarters 2 to 16. A wider binary-pulse mask gives 62.7 percent. A simple Fourier calculation gives annual sidebands of about 5.5 to 5.7 ppm, close to the measured probe amplitudes. Seasonal phase changes add little to the reduction. Aperture flux gives a smaller reduction. These are descriptive fits to the same observations. They do not establish an instrument cause, a new mode, or independent telescope confirmation. Code, input hashes, derived spectra, and checks are included.

Kepler · KIC 8164262 · sidebands · seasonal response · tidal oscillations