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  1. OA@INAF
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  3. 1 CONTRIBUTI IN RIVISTE (Journal articles)
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Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.12386/29722
Title: A Principal Component Analysis-based Method to Analyze High-resolution Spectroscopic Data on Exoplanets
Authors: Damiano, M.
MICELA, Giuseppina 
Tinetti, G.
Issue Date: 2019
Journal: THE ASTROPHYSICAL JOURNAL 
Number: 878
Issue: 2
First Page: 153
Abstract: High-resolution spectroscopy has been used to study the composition and dynamics of exoplanetary atmospheres. In particular, the spectrometer CRIRES installed on the ESO-VLT has been used to record high-resolution spectra in the near-IR of gaseous exoplanets. Here we present a new automatic pipeline to analyze CRIRES data sets. Said pipeline is based on a novel use of the principal component analysis and the cross-correlation function. The exoplanetary atmosphere is modeled with the { \mathcal T }-REx code using opacities at high temperatures from the ExoMol project. In this work we tested our analysis tools on the detection of CO and H<SUB>2</SUB>O in the atmospheres of the hot Jupiters HD209458b and HD189733b. The results of our pipeline are in agreement with previous results in the literature and other techniques.
URI: http://hdl.handle.net/20.500.12386/29722
URL: https://iopscience.iop.org/article/10.3847/1538-4357/ab22b2
ISSN: 0004-637X
DOI: 10.3847/1538-4357/ab22b2
Bibcode ADS: 2019ApJ...878..153D
Fulltext: open
Appears in Collections:1.01 Articoli in rivista

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