The Simultaneous Additive and Relative SysRem Algorithm

The Simultaneous Additive and Relative SysRem Algorithm

Ofir 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.

2011

DOI: 10.1051/epjconf/20101101006

EPJ Web of Conferences

EDP Sciences

Physics

EN