期刊
ASTRONOMY & ASTROPHYSICS
卷 506, 期 1, 页码 431-434出版社
EDP SCIENCES S A
DOI: 10.1051/0004-6361/200912037
关键词
methods: data analysis; techniques: photometric; planetary systems
资金
- Ministry of Science, Culture and Sport of Israel for France-Israel collaboration in Astrophysics [3-450]
- ISRAEL SCIENCE FOUNDATION [655/07]
- ISRAEL SCIENCE FOUNDATION - The Adler Foundation for Space Research [119/07]
This paper presents an analysis that searched for systematic effects within the CoRoT exoplanet field light curves. The analysis identified a systematic effect that modified the zero point of most CoRoT exposures as a function of stellar magnitude. We could find this effect only after preparing a set of learning light curves that were relatively free of stellar and instrumental noise. Correcting for this effect, rejecting outliers that appear in almost every exposure, and applying SysRem, reduced the stellar RMS by about 20%, without attenuating transit signals.
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