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Accesso Utenti

CFHT, Hawaii
Address:
United States
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Abstract Reference: 30787
Identifier: P8.26
Presentation: Poster presentation
Key Theme: 8 Other

OPERA: and open-source pipeline for echelle spectrographs

Authors:
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.