Journal Article

The needle in the haystack: searching for transiting extrasolar planets in <i>CoRoT</i> stellar light curves

S. Grziwa, M. Pätzold and L. Carone

in Monthly Notices of the Royal Astronomical Society

Published on behalf of The Royal Astronomical Society

Volume 420, issue 2, pages 1045-1052
Published in print February 2012 | ISSN: 0035-8711
Published online January 2012 | e-ISSN: 1365-2966 | DOI: http://dx.doi.org/10.1111/j.1365-2966.2011.19970.x
The needle in the haystack: searching for transiting extrasolar planets in CoRoT stellar light curves

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exotrans is a software package developed by the Department of Planetary Research of the Rheinisches Institut für Umweltforschung (RIU-PF) at Cologne University for detecting transit signals from extrasolar planets in stellar light curves. exotrans is used very successfully by RIU-PF within the CoRoT mission. The software package uses two different filter algorithms for pre-whitening and noise reduction (harmonic and trend filtering). Three different box-fitting least-squares algorithms (BLS) are applied in order to extract a potential transit signal from the light curves. The performance of each filter-BLS-algorithm combination on real CoRoT data is presented and compared with other methods used by the CoRoT team.

Keywords: methods: numerical; planets and satellites: detection

Journal Article.  4632 words.  Illustrated.

Subjects: Astronomy and Astrophysics

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