The typical approach for removing telluric absorption lines from a science spectrum is to divide it by the spectrum of a standard star of spectral type A or B observed close in time and airmass. We present a new method, where we use a model for the transmission of the Earth's atmosphere in a full-spectrum fit, which determines the parameters for the stellar and Earth's atmosphere simultaneously. This eliminates the need of a standard star completely.
@article{arxiv.1312.2450,
title = {Using a model for telluric absorption in full-spectrum fits},
author = {Tim-Oliver Husser and Kathrin Ulbrich},
journal= {arXiv preprint arXiv:1312.2450},
year = {2013}
}
Comments
4 pages, 3 figures, International Workshop on Stellar Spectral Libraries 2013