A new algorithm for sky extraction for multi-fiber instrument
Instrumentation and Methods for Astrophysics
2010-09-06 v1
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 with an accuracy of 1% in the mono-fibers mode, and 0.3-0.4% for integral-field-unit observations.
Keywords
Cite
@article{arxiv.1009.0554,
title = {A new algorithm for sky extraction for multi-fiber instrument},
author = {M. Rodrigues and H. Flores and M. Puech and Y. Yang and F. Royer},
journal= {arXiv preprint arXiv:1009.0554},
year = {2010}
}