An international team of researchers has successfully used NASA’s James Webb Space Telescope to map the weather on the hot gas-giant exoplanet WASP-43 b.
General circulation models of gas giant exoplanets predict equatorial jets that drive inhomogeneities across the planetary atmosphere. We studied the transmission spectrum of the hot Jupiter WASP-127b during one transit […]
Many studies have analyzed planetary occurrence rates and their dependence on the host’s properties to provide clues to planet formation, but few have focused on the mutual occurrence ratio of […]
![Best-fit free retrieval of the JWST NIRSpec and HST WFC3 data for WASP-77A b. The coloured regions show the individual contribution of three species (H2O, CO, and TiO) and Collision Induced Absorption (CIA), while the inset shows the 1, 2, and 3σ confidence intervals for the retrieved temperature-pressure (T − p) profile. These three species are detected in the HST and JWST data, allowing us to place constraints on elemental ratios for this atmosphere. The best-fit T − p profile has a positive lapse rate (i.e, no evidence for a thermal inversion) in the pressure region probed by our observations (p ∈ [105 , 100] Pa). -- astro-ph.EP](https://i0.wp.com/astrobiology.com/wp-content/uploads/2024/02/MeasuringTracers.png?resize=1200%2C719&ssl=1)
We present a comprehensive atmospheric retrieval study of the hot Jupiter WASP-77A b using eclipse observations from the Hubble Space Telescope (HST) and JWST.
Recent discoveries of transiting giant exoplanets around M-dwarf stars (GEMS), aided by the all-sky coverage of TESS, are starting to stretch theories of planet formation through the core-accretion scenario. Recent […]
Optical phase curves of hot Jupiters can reveal global scattering properties. We implement a Bayesian inference framework for optical phase curves with flux contributions from: reflected light from a potentially […]
To date, the hot Jupiter WASP-12 b has been the only planet with confirmed orbital decay. The late F-type host star has been hypothesized to be surrounded by a large […]
The Jupiter-sized planet WASP-121 b is no place to call home. For starters, it orbits very close to a star that is brighter and hotter than the Sun. The planet […]
Carbon monoxide was recently reported in the atmosphere of the hot Jupiter WASP-39b using the NIRSpec PRISM transit observation of this planet, collected as part of the JWST Transiting Exoplanet […]
Although liquid water covers a majority of Earth’s surface, scientists are still searching for planets outside of our solar system that contain water. Researchers at Caltech and several other institutions […]
