Quentin Changeat

    Research Fellow STScI (ESA)

     

    Main Research Fields

    - Characterization of exoplanets.
    - Transit, Eclipse, Phase-curve, Imaging.
    - Retrieval and Machine learning methods.
    - Science.


    Keywords

    Exoplanets, spectroscopy, transit, space telescopes, atmospheric retrievals.

    Ongoing collaborations

    University College London - Dept Physics and Astronomy: Honorary Research Fellow.

    Simons Foundation - Flatiron Institute: Guest Researcher.

    National Astronomical Observatory in Japan (NAOJ): Collaboration with Ikoma-sensei's group.

    Centre Energie Atomique (CEA): Collaboration with Prof. Lagage's group.

    Laboratoire Inter-universitaire des Systemes Atmospheriques (LISA): Collaboration with Dr. Venot's group.

    Palermo Observatory: Collaboration with Prof. Micela's group.

    Publications

    Link to publication library: ADS link

    Changeat, Edwards et al. (2022) - Five key exoplanet questions answered via the analysis of 25 hot Jupiter atmospheres in eclipse

    Changeat (2022) - On spectroscopic phase-curve retrievals: H2 dissociation and thermal inversion in the atmosphere of the ultra-hot Jupiter WASP-103 b

    Changeat et al. (2021) - An exploration of model degeneracies with a unified phase curve retrieval analysis: The light and dark sides of WASP-43 b

    Changeat & Edwards (2021) - The Hubble WFC3 Emission Spectrum of the Extremely-Hot Jupiter, KELT-9b

    Changeat et al. (2020c) - KELT-11 b: Abundances of water and constraints on carbon-bearing molecules from the Hubble transmission spectrum

    Changeat & Al-Refaie (2020) - TauREx3 PhaseCurve: A 1.5D model for phase curve description

    Changeat et al. (2020b) - Alfnoor: A Retrieval Simulation of the Ariel Target List

    Changeat et al. (2020a) - Impact of planetary mass uncertainties on exoplanet atmospheric retrievals

    Changeat et al. (2019) - Towards a more complex description of chemical profiles in exoplanets retrievals: A 2-layer parameterisation

    Project/mission at ESA

    ESA-Ariel working group lead (Spectral Retrieval).

    NASA/ESA/CSA-JWST ERS Member.

    Academic Website: quentchangeat.github.io