CFHT, Hawaii
United States

Miscellaneous Information

Miscellaneous Information

Abstract Reference: 30787
Identifier: P8.26
Presentation: Poster presentation
Key Theme: 8 Other

OPERA: and open-source pipeline for echelle spectrographs

Withington Kanoa, Martioli Eder, Malo Lison, Usher Chris, Moutou Claire, Manset Nadine

This article describes the algorithms implemented in the OPERA pipeline software package for the reduction of cross-dispersed high resolution spectropolarimetric ESPaDOnS data. It is currently the only open source software available for fiber-fed echelle spectrographs and spectropolarimeters that use an image slicer. We describe the software organization and it's performance validation plus some novel processing methods including a two-dimensional instrument profile that provides improved wavelength and flux calibration, better polarimetric precision.