To understand the role that planet formation history has on the observable atmospheric
carbon-to-oxygen ratio (C/O) we have produced a population of astrochemically evolving …

Combining a time-dependent astrochemical model with a model of planet formation and
migration, we compute the carbon-to-oxygen ratio (C/O) of a range of planetary embryos …

The chemical composition of planetary atmospheres has long been thought to store
information regarding where and when a planet accretes its material. Predicting this …

The elemental compositions of planet-hosting stars serve as proxies for the primordial
compositions of protoplanetary disks within which the planets form. The temperature profile …

Motivated by recent spectroscopic evidence for carbon-rich atmospheres on some transiting
exoplanets, we investigate the influence of the C/O ratio on the chemistry, composition, and …

We present a model of the early chemical composition and elemental abundances of
planetary atmospheres based on the cumulative gaseous chemical species that are …

The C/O ratio is predicted to regulate the atmospheric chemistry in hot Jupiters. Recent
observations suggest that some exoplanets, eg, Wasp 12-b, have atmospheric C/O ratios …

Context. Exoplanet atmospheres are thought be built up from accretion of gas as well as
pebbles and planetesimals in the midplanes of planet-forming disks. The chemical …

The relative abundances of carbon and oxygen have long been recognized as fundamental
diagnostics of stellar chemical evolution. Now, the growing number of exoplanet …

The elemental carbon-to-oxygen ratio (C/O) in the atmosphere of a giant planet is a
promising diagnostic of that planet's formation history in a protoplanetary disk. Alongside …