Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 8 of 8 for “"Atmospheric retrieval"”.
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Bayesian atmospheric retrieval for exoplanets : uniqueness of exoplanet spectra, characterizations of super-earths, and evaluations of dedicated space telescope designs
… distant worlds. This thesis presents a Bayesian retrieval framework to analyze spectroscopic observations of exoplanets to infer the planet's atmospheric compositions, the surface pressures, and the presences of clouds or hazes. I identify what can unambiguously be determined about the …
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Exoplanetary Atmospheric Retrievals with Transit Spectroscopy in the JWST Era
Atmospheric spectroscopy of planets beyond our solar system can provide important insights into their atmospheric processes, formation histories and even the presence of life. The James Webb Space Telescope (JWST) has already led to the first of likely many breakthroughs with novel chemical …
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Revealing the Nature of Exoplanetary Atmospheres
… has been challenged by the prospect of atmospheric clouds. In this thesis, I introduce a new approach to retrieve properties of exoplanetary atmospheres. I demonstrate that a generalisation of common 1D exoplanet atmosphere retrieval models to include 2D properties can break …
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Exoplanet atmospheric exploration and categorization through transmission spectroscopy
… spectroscopy observations, combined with atmospheric retrieval, can characterize the atmospheres of those planets. Out of that sample, super Earth exoplanets are particularly interesting because it is expected that their atmospheres will have a large diversity - from terrestrial-like to …
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Maps and masses of transiting exoplanets : towards new insights into atmospheric and interior properties of planets
… implementations, to gain new insights into the atmospheric and interior properties of exoplanets. The first method aims to map an exoplanet's atmosphere based on the eclipse scanning which is obtained while a planet is occulted by its host star. Ultimately temperature, composition, and …
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Investigating the Characteristics of Exoplanetary Atmospheres and Interiors
… such as mass and radius combining with detailed atmospheric spectroscopy to provide unprecedented insight into the nature of these remote worlds. However, these high-quality observations also require sophisticated modelling and analysis tools in order to maximise the scientific output from the …
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Thermal and Radiative Properties of Exoplanet Atmospheres Across the Mass Range
… investigating important considerations for the atmospheric retrieval of isolated brown dwarfs. These objects provide remarkable laboratories for understanding atmospheric physics in the low-irradiation regime, and can be observed more precisely than exoplanets. As such, they provide a glimpse …
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Towards Generalized Characterization of Exoplanet Atmospheres with Transit Spectroscopy
… of parameter space; from ultra-hot Jupiters with atmospheric temperatures beyond 3000 K, to temperate mini Neptunes that may host water in their atmospheres. Upcoming observational facilities in the next two decades will deliver exquisite spectra of exoplanet atmospheres at wavelengths never …