Initial Characteristics of Kepler Long Cadence Data For Detecting Transiting Planets - Astrophysics > Earth and Planetary AstrophysicsReportar como inadecuado




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Abstract: The Kepler Mission seeks to detect Earth-size planets transiting solar-likestars in its ~115 deg^2 field of view over the course of its 3.5 year primarymission by monitoring the brightness of each of ~156,000 Long Cadence stellartargets with a time resolution of 29.4 minutes. We discuss the photometricprecision achieved on timescales relevant to transit detection for dataobtained in the 33.5-day long Quarter 1 Q1 observations that ended 2009 June15. The lower envelope of the photometric precision obtained at varioustimescales is consistent with expected random noise sources, indicating thatKepler has the capability to fulfill its mission. The Kepler light curvesexhibit high precision over a large dynamic range, which will surely permittheir use for a large variety of investigations in addition to finding andcharacterizing planets. We discuss the temporal characteristics of both the rawflux time series and the systematic error-corrected flux time series producedby the Kepler Science Pipeline, and give examples illustrating Kepler-s largedynamic range and the variety of light curves obtained from the Q1observations.



Autor: Jon M. Jenkins, Douglas A. Caldwell, Hema Chandrasekaran, Joseph D. Twicken, Stephen T. Bryson, Elisa V. Quintana, Bruce D. Clark

Fuente: https://arxiv.org/



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