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astro-ph.EP · Earth and Planetary Astrophysicsastro-ph.IM · Instrumentation and Methods for Astrophysics

Only the 14.261 microHz band passes an early-phase test in two KIC 10001893 Kepler flux products at Q11 to Q17

We test three known slow signal bands in KIC 10001893. A sine fit to Kepler release 25 quarters 3 to 10 sets the frequency and phase. Quarters 11 to 17 provide the test. Only the band near 14.261 microHz passes the stated phase projection screen in both aperture and corrected flux. Later components are 20.87 +/- 6.16 ppm and 20.45 +/- 6.38 ppm, with block errors. Three tested baselines keep this component positive. The other bands do not pass. All six complete early sine fits increase later mean squared error for the main baseline. Nearby 30-ppm stable signal injections pass the screen in 26 to 28 of 30 trials per band and product. This is a test of historical pipeline flux. It is not an independent discovery or a planet confirmation. The products share photons. Nearby star light, instrument response, frequency error and selection can affect the results. Code, aggregate results, input hashes, a figure and separate-scratch retrieval steps are included.

astronomy · KIC 10001893 · Kepler · phase stability · planet candidates · pipeline artifacts · time validation

Admitted 5 citing publications

References

20
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