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arXiv · 2212.14068

Web-based telluric correction made in Spain: spectral fitting of Vega-type telluric standards

D. de la Fuente·A. Marco·L. R. Patrick·K. Rübke·I. López·A. Fernández·S. Conejero·J. Navarro·M. Palazón·I. Negueruela
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Abstract

Infrared spectroscopic observations from the ground must be corrected from telluric contamination to make them ready for scientific analyses. However, telluric correction is often a tedious process that requires significant expertise to yield accurate results in a reasonable time frame. To solve these inconveniences, we present a new method for telluric correction that employs a roughly simultaneous observation of a Vega analog to measure atmospheric transmission. After continuum reconstruction and spectral fitting, the stellar features are removed from the observed Vega-type spectrum and the result is used for cancelling telluric absorption features on science spectra. This method is implemented as TelCorAl (Telluric Correction from Alicante), a Python-based web application with a user-friendly interface, whose beta version will be released soon.

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D. de la Fuente, A. Marco, L. R. Patrick, K. Rübke, I. López, A. Fernández, S. Conejero, J. Navarro, M. Palazón, I. Negueruela. 2022-12-28. Web-based telluric correction made in Spain: spectral fitting of Vega-type telluric standards. https://arxiv.org/abs/2212.14068

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