The Simultaneous Additive and Relative SysRem Algorithm

The Simultaneous Additive and Relative SysRem Algorithm

We present the SARS algorithm, which is a generalization of the popular SysRem detrending technique. This generalization allows including multiple external parameters in a simultaneous solution with the unknown effects. Using SARS allowed us to show that the magnitude-dependant systematic effect disco...

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Main Author: Ofir A.
Format: Article
Language:English
Published: EDP Sciences 2011-02-01
Series:EPJ Web of Conferences
Online Access:http://dx.doi.org/10.1051/epjconf/20101101006
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spelling doaj-1041dd0fa08d44f891a202491c80c9ac2021-08-02T05:41:00ZengEDP SciencesEPJ Web of Conferences2100-014X2011-02-01110100610.1051/epjconf/20101101006The Simultaneous Additive and Relative SysRem AlgorithmOfir A.We present the SARS algorithm, which is a generalization of the popular SysRem detrending technique. This generalization allows including multiple external parameters in a simultaneous solution with the unknown effects. Using SARS allowed us to show that the magnitude-dependant systematic effect discovered by Mazeh et al. (2009) in the CoRoT data is probably caused by an additive –rather than relative– noise source. A post-processing scheme based on SARS performs well and indeed allows for the detection of new transit-like signals that were not previously detected. http://dx.doi.org/10.1051/epjconf/20101101006
collection DOAJ
language English
format Article
sources DOAJ
author Ofir A.
spellingShingle Ofir A.
The Simultaneous Additive and Relative SysRem Algorithm
EPJ Web of Conferences
author_facet Ofir A.
author_sort Ofir A.
title The Simultaneous Additive and Relative SysRem Algorithm
title_short The Simultaneous Additive and Relative SysRem Algorithm
title_full The Simultaneous Additive and Relative SysRem Algorithm
title_fullStr The Simultaneous Additive and Relative SysRem Algorithm
title_full_unstemmed The Simultaneous Additive and Relative SysRem Algorithm
title_sort simultaneous additive and relative sysrem algorithm
publisher EDP Sciences
series EPJ Web of Conferences
issn 2100-014X
publishDate 2011-02-01
description We present the SARS algorithm, which is a generalization of the popular SysRem detrending technique. This generalization allows including multiple external parameters in a simultaneous solution with the unknown effects. Using SARS allowed us to show that the magnitude-dependant systematic effect discovered by Mazeh et al. (2009) in the CoRoT data is probably caused by an additive –rather than relative– noise source. A post-processing scheme based on SARS performs well and indeed allows for the detection of new transit-like signals that were not previously detected.
url http://dx.doi.org/10.1051/epjconf/20101101006
work_keys_str_mv AT ofira thesimultaneousadditiveandrelativesysremalgorithm
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