Paper
20 July 2010 A method to subtract the skylight for the multi-fiber instrument E-ELT/OPTIMOS-EVE
M. Rodrigues, H. Flores, M. Puech, Y. Yang, F. Royer
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Abstract
We present a new method to subtract sky light from faint object observations with fiber-fed spectrographs. The algorithm has been developed in the framework of the phase A of OPTIMOS-EVE, an optical-to-IR multi-object spectrograph for the future european extremely large telescope (E-ELT). The new technique overcomes the apparent limitation of fiber-fed instrument to recover with high accuracy the sky contribution. The algorithm is based on the reconstruction of the spatial fluctuations of the sky background (both continuum and emission) and allows us to subtract the sky background contribution in an FoV of 7 × 7 arcmin2 with an accuracy of 1% in the mono-fibers mode, and 0.3-0.4% for integral-field-unit observations.
© (2010) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
M. Rodrigues, H. Flores, M. Puech, Y. Yang, and F. Royer "A method to subtract the skylight for the multi-fiber instrument E-ELT/OPTIMOS-EVE", Proc. SPIE 7735, Ground-based and Airborne Instrumentation for Astronomy III, 77356L (20 July 2010); https://doi.org/10.1117/12.856956
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Cited by 6 scholarly publications.
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KEYWORDS
Optical fibers

Molybdenum

Monte Carlo methods

Reconstruction algorithms

Spectrographs

Galactic astronomy

Spectral resolution

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