How drifting and evaporating pebbles shape giant planets-I. Heavy element content and atmospheric C/O

AD Schneider, B Bitsch - Astronomy & Astrophysics, 2021 - aanda.org
Recent observations of extrasolar gas giants suggest super-stellar C/O ratios in planetary
atmospheres, while interior models of observed extrasolar giant planets additionally suggest …

Setting the stage: planet formation and volatile delivery

J Venturini, MP Ronco, OM Guilera - Space Science Reviews, 2020 - Springer
The diversity in mass and composition of planetary atmospheres stems from the different
building blocks present in protoplanetary discs and from the different physical and chemical …

Efficient planet formation by pebble accretion in ALMA rings

H Jiang, CW Ormel - Monthly Notices of the Royal Astronomical …, 2023 - academic.oup.com
In the past decade, ALMA observations have revealed that a large fraction of protoplanetary
discs contains rings in the dust continuum. These rings are the locations where pebbles …

Diverse outcomes of planet formation and composition around low-mass stars and brown dwarfs

Y Miguel, A Cridland, CW Ormel… - Monthly Notices of the …, 2020 - academic.oup.com
The detection of Earth-sized exoplanets around low-mass stars–in stars such as Proxima
Centauri and TRAPPIST-1–provide an exceptional chance to improve our understanding of …

The effect of a strong pressure bump in the Sun's natal disk: terrestrial planet formation via planetesimal accretion rather than pebble accretion

A Izidoro, B Bitsch, R Dasgupta - The Astrophysical Journal, 2021 - iopscience.iop.org
Mass-independent isotopic anomalies of carbonaceous and noncarbonaceous meteorites
show a clear dichotomy suggesting an efficient separation of the inner and outer solar …

Most super-Earths formed by dry pebble accretion are less massive than 5 Earth masses

J Venturini, OM Guilera, MP Ronco… - Astronomy & …, 2020 - aanda.org
Aims. The goal of this work is to study the formation of rocky planets by dry pebble accretion
from self-consistent dust-growth models. In particular, we aim to compute the maximum core …

Giant planet formation at the pressure maxima of protoplanetary disks-II. A hybrid accretion scenario

OM Guilera, Z Sándor, MP Ronco, J Venturini… - Astronomy & …, 2020 - aanda.org
Context. Recent high-resolution observations of protoplanetary disks have revealed ring-like
structures that can be associated to pressure maxima. Pressure maxima are known to be …

The growth and migration of massive planets under the influence of external photoevaporation

AJ Winter, TJ Haworth, GAL Coleman… - Monthly Notices of the …, 2022 - academic.oup.com
The formation of gas giant planets must occur during the first few Myr of a star's lifetime,
when the protoplanetary disc still contains sufficient gas to be accreted on to the planetary …

When, where, and how many planets end up in first-order resonances?

S Huang, CW Ormel - Monthly Notices of the Royal Astronomical …, 2023 - academic.oup.com
The theory of Type I migration has been widely used in many studies. Transiting multiplanet
systems offer us the opportunity to examine the consistency between observation and …

A recipe for orbital eccentricity damping in the type-I regime for low-viscosity 2D discs

G Pichierri, B Bitsch, E Lega - Astronomy & Astrophysics, 2023 - aanda.org
Context. It is well known that partial and deep gap opening depends on a disc's viscosity;
however, damping formulas for orbital eccentricities have only been derived at high …