Skip to content

Opening book details…

Can I read Statistical trends in JWST transiting exoplanet atmospheres on EtoBox?

Statistical trends in JWST transiting exoplanet atmospheres by Fu, Guangwei; Stevenson, Kevin B.; Sing, David K.; Mukherjee, Sagnick; Welbanks, Luis; Thorngren, Daniel; Tsai, Shang-Min; Gao, Peter; Lothringer, Joshua; Beatty, Thomas G.; Gapp, Cyril; Evans-Soma, Thomas M.; Allart, Romain; Pelletier, Stefan; Thao, Pa Chia; Mann, Andrew W. is a scholarly article available to read on EtoBox.

What is Statistical trends in JWST transiting exoplanet atmospheres about?

Our brains are hardwired for pattern recognition as correlations are useful for predicting and understanding nature. As more exoplanet atmospheres are being characterized with JWST, we are starting to unveil their properties on a population level. Here we present a framework for comparing exoplanet transmission spectroscopy from 3 to 5$\mu$m with four bands: L (2.9 - 3.7$\mu$m), SO$_2$ (3.95 - 4.1$\mu$m), CO$_2$ (4.25 - 4.4$\mu$m) and CO (4.5 - 4.9$\mu$m). Together, the four bands cover the major carbon, oxygen, nitrogen, and sulfur-bearing molecules including H$_2$O, CH$_4$, NH$_3$, H$_2$S, SO$_2$, CO$_2$, and CO. Among the eight high-precision gas giant exoplanet planet spectra we collected, we found strong correlations between the SO$_2$-L index and planet mass (r=-0.41$\pm$0.09) and temperature (r=-0.64$\pm$0.08), indicating SO$_2$ preferably exists (SO$_2$-L$>$-0.5) among low mass ($\sim<$0.3M$_J$) and cooler ($\sim<$1200K) targets. We also observe strong temperature dependency for both CO$_2$-L and CO-L indices. Under equilibrium chemistry and isothermal thermal structure assumptions, we find that the planet sample favors super-solar metallicity and low C/O ratio ($<$0.7). In

Author
Fu, Guangwei; Stevenson, Kevin B.; Sing, David K.; Mukherjee, Sagnick; Welbanks, Luis; Thorngren, Daniel; Tsai, Shang-Min; Gao, Peter; Lothringer, Joshua; Beatty, Thomas G.; Gapp, Cyril; Evans-Soma, Thomas M.; Allart, Romain; Pelletier, Stefan; Thao, Pa Chia; Mann, Andrew W.
Published
2025
Language
EN

More by Fu, Guangwei; Stevenson, Kevin B.; Sing, David K.; Mukherjee, Sagnick; Welbanks, Luis; Thorngren, Daniel; Tsai, Shang-Min; Gao, Peter; Lothringer, Joshua; Beatty, Thomas G.; Gapp, Cyril; Evans-Soma, Thomas M.; Allart, Romain; Pelletier, Stefan; Thao, Pa Chia; Mann, Andrew W.

Browse all works by Fu, Guangwei; Stevenson, Kevin B.; Sing, David K.; Mukherjee, Sagnick; Welbanks, Luis; Thorngren, Daniel; Tsai, Shang-Min; Gao, Peter; Lothringer, Joshua; Beatty, Thomas G.; Gapp, Cyril; Evans-Soma, Thomas M.; Allart, Romain; Pelletier, Stefan; Thao, Pa Chia; Mann, Andrew W.