Institut de Physique du Globe de Paris
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Maël Es-sayeh

Maël Es-sayeh
Main information
Planetology and Space Sciences
IPGP - 1 rue Jussieu - 75238 Paris cedex 05

Content / Work

My research focuses on analyzing the 13 years of Cassini/VIMS hyper-spectral observations of Titan in the near-IR to globally map the surface reflectivity. For this, I developed a radiative transfer model to correct for gaseous absorption and aerosol scattering to retrieve the surface albedo. My research covers both observational and theoretical aspects. I have gained experience in reducing and analyzing observational data (Cassini/VIMS, Huygens/DISR, Very Large Telescope, and JWST/NIRSpec and NIRCam), and developing radiative transfer models to interpret these observations.

Publications

Nixon Conor A, Bézard Bruno, Cornet Thomas, Coy Brandon Park, de Pater Imke, Es-Sayeh Maël, Hammel Heidi B, Lellouch Emmanuel, Lombardo Nicholas A, López-Puertas Manuel, Lora Juan M, Rannou Pascal, Rodriguez Sébastien, Teanby Nicholas A, Turtle Elizabeth P, Achterberg Richard K, Alvarez Carlos, Davies Ashley G, de Kleer Katherine, Doppmann Greg, Fletcher Leigh N, Hayes Alexander G, Holler Bryan J, Irwin Patrick G J, Jordan Carolyn, King Oliver R T, Kutsop Nicholas W, Marlin Theresa, Melin Henrik, Milam Stefanie N, Molter Edward M, Moore Luke, Nyffenegger-Péré Yaniss, O’donoghue James, O’meara John, Rafkin Scot C R, Roman Michael T, Rostopchina Arina, Rowe-Gurney Naomi, Schmidt Carl, Schmidt Judy, Sotin Christophe, Stallard Tom S, Stansberry John A, West Robert A. The atmosphere of Titan in late northern summer from JWST and Keck observations. Nature Astronomy, Nature Publishing Group, 14 May 2025. <10.1038/s41550-025-02537-3>

Es-sayeh Maël, Rodriguez S, Ntinos C, Maltagliati L, Cornet T, Rannou P, Coutelier Maélie, Vincendon Mathieu, Le Mouélic Stéphane, Sotin C. Radiative Transfer Modeling in Titan's Atmosphere and Surface: Application to Cassini/VIMS Data Analysis at Regional to Global Scale. 11 March 2024.

Es-Sayeh M, Rodriguez S, Coutelier Maélie, Rannou Pascal, Bézard B, Maltagliati L, Cornet T, Grieger B, Karkoschka E, Le Mouélic Stéphane, Le Gall Alice, Neish C, Mackenzie S, Solomonidou A, Sotin C, Coustenis A. Updated Radiative Transfer Model for Titan in the Near-infrared Wavelength Range: Validation against Huygens Atmospheric and Surface Measurements and Application to the Cassini/VIMS Observations of the Dragonfly Landing Area. The Planetary Science Journal, IOP Science, 14 March 2023, 4. <10.3847/psj/acbd37>

Es-Sayeh M, Rodriguez S, Coutelier Maélie, Rannou Pascal, Bézard B, Maltagliati L, Cornet Thomas, Grieger B, Karkoschka Erich, Seignovert Benoît, Le Mouélic Stéphane, Sotin C, Coustenis A. Updated radiative transfer model for Titan in the near-infrared wavelength range: Validation on Huygens atmospheric and surface measurements and application to the analysis of the VIMS/Cassini observations of the Dragonfly landing area. September 2022.

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  • CV
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