Core Insights - The research on exoplanet atmospheres is crucial for understanding planet formation, evolution, and habitability [1] - The study led by the Purple Mountain Observatory utilized James Webb Space Telescope data to reveal the atmospheric asymmetry of the hot Jupiter WASP-39 b [1][2] - The findings were published in the international journal "Astronomical Journal" [1] Group 1: Research Findings - The research team discovered significant differences in temperature, composition, and aerosol characteristics between the morning and evening sides of the exoplanet's atmosphere [1] - WASP-39 b is a hot Saturn-mass planet located approximately 700 light-years from Earth, with a balance temperature of about 900°C and a short orbital period of around 4 days [1] - The atmosphere of WASP-39 b is expanded and relatively transparent, making it an ideal target for studying exoplanet atmospheric composition [1] Group 2: Methodology - The team constructed four two-dimensional transmission spectral models and compared them with traditional one-dimensional methods [2] - Two of the models innovatively incorporated dynamic constraints based on shallow water simulations, providing a physically reasonable basis for the temperature differences between morning and evening [2] - The study confirmed the existence of significant atmospheric asymmetry, with cooler, cloudier, and more haze-scattering conditions in the morning region, while the evening region was warmer and relatively clear [2] Group 3: Implications - The introduction of dynamic constraints into the study of exoplanet atmospheric asymmetry offers a new perspective for understanding atmospheric circulation and the distribution of components and aerosols [2] - This research method paves the way for future studies on more hot Jupiter samples, enhancing the understanding of atmospheric asymmetry in such planets [2]