Atmospheric modelling for the removal of telluric features from infrared planetary spectra
Article
Article Title | Atmospheric modelling for the removal of telluric features from infrared planetary spectra |
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ERA Journal ID | 1074 |
Article Category | Article |
Authors | Cotton, Daniel V., Bailey, Jeremy and Kedziora-Chudczer, Lucyna |
Journal Title | Monthly Notices of the Royal Astronomical Society |
Journal Citation | 439 (1), pp. 387-399 |
Number of Pages | 13 |
Year | 2014 |
Publisher | Oxford University Press |
Place of Publication | United Kingdom |
ISSN | 0035-8711 |
1365-2966 | |
Digital Object Identifier (DOI) | https://doi.org/10.1093/mnras/stt2465 |
Web Address (URL) | https://academic.oup.com/mnras/article/439/1/387/977221 |
Abstract | The effects of telluric absorption on infrared spectra present a problem for the observer. Strong molecular absorptions from species whose concentrations vary with time can be particularly challenging to remove precisely. Yet removing these effects is key to accurately determining the composition of many astronomical objects - planetary atmospheres in particular. Here, we present a method for removing telluric effects based on a modelling approach. The method relies only on observations usually made by the planetary astronomer, and so is directly comparable with current techniques. We use the modelling approach to process observations made of Jupiter, and Saturn's moon Titan and compare the results with those of the standard telluric division technique, finding the modelling approach to have distinct advantages even in conditions regarded as ideal for telluric division. |
Keywords | Infrared: Planetary systems; Planets and satellites: Atmospheres; Radiative transfer; Techniques: Spectroscopic |
Public Notes | This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society ©: 2014 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved. |
Byline Affiliations | University of New South Wales |
https://research.usq.edu.au/item/wz8xz/atmospheric-modelling-for-the-removal-of-telluric-features-from-infrared-planetary-spectra
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