Tools to Correct for Telluric Absorption and Emission Lines

Published: 22 Apr 2014

Two software tools to correct astronomical spectra for telluric absorption (molecfit) and emission (skycorr) lines have been publicly released. They have been developed for ESO by a team of astronomers at the Institute for Astro- and Particle Physics at the University of Innsbruck, as part of the Austrian in-kind contribution. In addition, a model of the sky emission and transmission spectrum at Cerro Paranal is also available.

For full details, see the skytools webpage. Versions for Linux 32 and 64 bit and MacOS are available for download and the tools can be run on the command-line or with a GUI; extensive documentation is also provided.

Demonstration plots of molecfit and skycorr