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

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 the...

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Veröffentlicht in:arXiv.org 2022-12
Hauptverfasser: de la Fuente, D, Marco, A, Patrick, L R, Rübke, K, López, I, Fernández, A, Conejero, S, Navarro, J, Palazón, M, Negueruela, I
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Sprache:eng
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Zusammenfassung: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.
ISSN:2331-8422