Differential atmospheric refraction in integral-field spectroscopy: Effects and correction
Atmospheric refraction in IFS
Instituto de Astrofísica de Canarias, E-38200 La Laguna, Tenerife, Spain
Send offprint request to: S. Arribas
Accepted: 27 November 1998
The basic concepts for determining the effect of differential atmospheric refraction on integral-field (two-dimensional) spectroscopic observations are presented, and a method for correcting the spectra from this effect is given. The method is demonstrated with real data.
Key words: atmospheric effects / instrumentation: spectrographs / techniques: spectroscopic
© European Southern Observatory (ESO), 1999