WASP-33b Archives

Calculated dayside composition for HD 209458b. Dotted lines correspond to the initial composition (chemical equilibrium for the gas giants and equal uniform abundances for secondary atmospheres), dashed lines to a calculation where the initial temperature does not further evolve (only for the gas giants), and solid lines to a self-consistent calculation where temperature and chemical composition evolve together. -- astro-ph.EP

The Mutual Influence of Disequilibrium Composition and Temperature in Exoplanet Atmospheres

by Keith CowingJune 19, 2025September 18, 2025

We have developed a 1D planetary atmosphere model that solves in a self-consistent manner the evolution of temperature and disequilibrium chemistry in the vertical direction.

Individual band contributions of OH in NIR retrieved using the completely populated band cross sections for 0 to 3 with a simulated five secondary eclipses, with the plot highlighting the wavelength region with the strongest lines. -- astro-ph.EP

Astrochemistry, Atmospheres, Climate, Weather, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report

A Spectroscopic Thermometer: Individual Vibrational Band Spectroscopy With The Example Of OH In The Atmosphere Of WASP-33b

by Keith CowingMay 19, 2023May 19, 2023

Individual vibrational band spectroscopy presents an opportunity to examine exoplanet atmospheres in detail by distinguishing where the vibrational state populations of molecules differ from the current assumption of a Boltzmann […]