An algorithm for correcting CoRoT raw light curves

D. Mislis, J. H.M.M. Schmitt, L. Carone, E. W. Guenther, M. Pätzold

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12 Citations (Scopus)

Abstract

We introduce the CoRoT detrend algorithm (CDA) for detrending CoRoT stellar light curves. The algorithm CDA has the capability to remove random jumps and systematic trends encountered in typical CoRoT data in a fully automatic fashion. Since enormous jumps in flux can destroy the information content of a light curve, such an algorithm is essential. From a study of 1030 light curves in the CoRoT IRa01 field, we developed three simple assumptions upon which CDA is based. We describe the algorithm analytically and provide some examples of how it works. We demonstrate the functionality of the algorithm in the cases of CoRoT0102702789, CoRoT0102874481, CoRoT0102741994, and CoRoT0102729260. Using CDA in the specific case of CoRoT0102729260, we detect a candidate exoplanet around the host star of spectral type G5, which remains undetected in the raw light curve, and estimate the planetary parameters to be Rp = 6.27 RE and P= 1.6986 days.

Original languageEnglish
Article numberA86
JournalAstronomy and Astrophysics
Volume522
Issue number7
DOIs
Publication statusPublished - 5 Nov 2010

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Keywords

  • Methods: data analysis
  • Planets and satellites: detection
  • Surveys
  • Techniques: photometric

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Mislis, D., Schmitt, J. H. M. M., Carone, L., Guenther, E. W., & Pätzold, M. (2010). An algorithm for correcting CoRoT raw light curves. Astronomy and Astrophysics, 522(7), [A86]. https://doi.org/10.1051/0004-6361/201014334