[en] We here present a method based on principal composant analysis to better remove the thermal background in the Hunt for Observable Signature of Terrestrial Systems (HOSTS) data. This method is based on the Hunziker et al. 2017 paper. We extend their study to the N' band used during the HOSTS survey, and compared the performances of our method in both high contrast imaging and aperture photometry.
Research Center/Unit :
Steward Observatory, University of Arizona Large Binocular Telescope Observatory Département AGO, Université de Liège
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Rousseau, Hélène ; Université de Liège - ULiège > Unités de recherche interfacultaires > Space sciences, Technologies and Astrophysics Research (STAR)
Language :
English
Title :
development of a PCA-based background subtraction method
Alternative titles :
[fr] développement d'une méthode de soustraction du background basé sur PCA
Publication date :
10 June 2021
Event name :
HOSTS mini workshop
Event date :
10/06/2021
Funders :
ERC - European Research Council NASA - National Aeronautics and Space Administration
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