English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Recent detections of thermal inversions in the dayside atmospheres of somehot Jupiters are motivating new avenues to understand the interplay betweentheir temperature structures and other atmospheric conditions. In particular,TiO has long been proposed to cause thermal inversions in hot Jupiters,depending on other factors such as stellar irradiation, C/O, and verticalmixing. TiO also has spectral features in the optical and near-infrared thathave been detected. However, interpretations of TiO signatures rely on theaccuracy of TiO opacity used in the models. The recently reported Toto TiO linelist provides a new opportunity to investigate these dependencies, which is thegoal of the present work. First, we investigate how the Toto line list affectsobservable transmission and emission spectra of hot Jupiters at low and highresolution. The improvement in the Toto line list compared to a previous linelist results in observable differences in the model spectra, particularly inthe optical at high resolution. Secondly, we explore the interplay betweentemperature structure, irradiation and composition with TiO as the primarysource of optical opacity, using 1D self-consistent atmospheric models. Amongother trends, we find that the propensity for thermal inversions due to TiOpeaks at C/O$\sim$0.9, consistent with recent studies. Using these models, wefurther assess metrics to quantify thermal inversions due to TiO, compared tofrequently-used Spitzer photometry, over a range in C/O, irradiation,metallicity, gravity and stellar type.

Assessing Spectra and Thermal Inversions due to TiO in Hot Jupiter Atmospheres