Journal
PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC
Volume 124, Issue 920, Pages 1073-1082Publisher
IOP PUBLISHING LTD
DOI: 10.1086/668291
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Funding
- National Science Foundation through the Graduate Research Fellowship Program
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We present the transiting exoearth robust reduction algorithm (TERRA)-a novel framework for identifying and removing instrumental noise in Kepler photometry. We identify instrumental noise modes by finding common trends in a large ensemble of light curves drawn from the entire Kepler field of view. Strategically, these noise modes can be optimized to reveal transits having a specified range of timescales. For Kepler target stars of low photometric noise, TERRA produces ensemble-calibrated photometry having 33 ppm rms scatter in 12 hr bins, rendering individual transits of Earth-size planets around Sun-like stars detectable as similar to 3 sigma signals.
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