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The Sys-Rem Detrending Algorithm: Implementation and Testing

Mazeh, T. and Tamuz, O. and Zucker, S. (2006) The Sys-Rem Detrending Algorithm: Implementation and Testing. . (Submitted)

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Sys-Rem (Tamuz, Mazeh & Zucker 2005) is a detrending algorithm designed to remove systematic effects in a large set of lightcurves obtained by a photometric survey. The algorithm works without any prior knowledge of the effects, as long as they appear in many stars of the sample. This paper presents the basic principles of Sys-Rem and discusses a parameterization used to determine the number of effects removed. We assess the performance of Sys-Rem on simulated transits injected into WHAT survey data. This test is proposed as a general scheme to assess the effectiveness of detrending algorithms. Application of Sys-Rem to the OGLE dataset demonstrates the power of the algorithm. We offer a coded implementation of Sys-Rem to the community.

Item Type:Report or Paper (Discussion Paper)
Related URLs:
URLURL TypeDescription Paper
Tamuz, O.0000-0002-0111-0418
Additional Information:We wish to thank A. Udalski for letting us use the OGLE data. This work was supported by the German-Israeli Foundation for Scientific Research and Development.
Funding AgencyGrant Number
German-Israeli Foundation for Scientific Research and DevelopmentUNSPECIFIED
Record Number:CaltechAUTHORS:20161115-090420610
Persistent URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:72021
Deposited By: Tony Diaz
Deposited On:15 Nov 2016 21:32
Last Modified:03 Oct 2019 16:13

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