![Synthetic spectra for a XPAH = 10−6 at temperatures of 800 K (top), 1200 K (middle), and 1600 K (bottom). Similar to Fig. A1, with constant C/O (0.55) and varying metallicities ([Fe/H]) are displayed for 0.1 (left) in green, 1 (middle) in cyan and 10 (right) in yellow. -- astro-ph.EP](https://i0.wp.com/astrobiology.com/wp-content/uploads/2024/11/Polycyclic-Aromatic-Hydrocarbons-in-Exoplanet-Atmospheres.png?resize=1200%2C720&ssl=1)
In this paper, we explore the detectability of polycyclic aromatic hydrocarbons (PAHs) under diverse planetary conditions, aiming to identify promising targets for future observations of planetary atmospheres.
petitCODE
![Mass fraction of 4 different PAHs, H2O, CH4, HCN, CO, and C2H2 for transiting planet (Teff = 1300K, Tint = 200K, [Fe/H] = 1.0, and log(g) = 3.0) for different C/O ratios -- astro-ph.EP](https://i0.wp.com/astrobiology.com/wp-content/uploads/2023/08/polycyclic.png?resize=1200%2C718&ssl=1)
Posted inAstrochemistry, Atmospheres, Climate, Weather, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report
Polycyclic Aromatic Hydrocarbons in Exoplanet Atmospheres I. Thermochemical Equilibrium Models
Context: Polycyclic Aromatic Hydrocarbons, largely known as PAHs, are widespread in the universe and have been identified in a vast array of astronomical observations from the interstellar medium to protoplanetary […]