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

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

The atmospheric chemical composition of a hot Jupiter can lead to insights into where in its
natal protoplanetary disc it formed and its subsequent migration pathway. We use a 1D …

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

Context. The current paradigm to explain the presence of Jupiter-like planets with small
orbital periods (P< 10 days; hot Jupiters), which involves their formation beyond the snow …

The origin of close-in giant planets is a key open question in planet formation theory. The
two leading models are (i) formation at the outer disk followed by migration and (ii) in situ …

The core accretion theory for giant planet formation predicts enrichment of elemental
abundances in planetary envelopes caused by runaway accretion of planetesimals, which is …

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 …