Gravitational instabilities in circumstellar disks

K Kratter, G Lodato - Annual Review of Astronomy and …, 2016 - annualreviews.org
Star and planet formation are the complex outcomes of gravitational collapse and angular
momentum transport mediated by protostellar and protoplanetary disks. In this review, we …

Planet-disc interactions and early evolution of planetary systems

C Baruteau, A Crida, SJ Paardekooper… - arXiv preprint arXiv …, 2013 - arxiv.org
The great diversity of extrasolar planetary systems has challenged our understanding of how
planets form, and how their orbits evolve as they form. Among the various processes that …

The SPHERE infrared survey for exoplanets (SHINE)-III. The demographics of young giant exoplanets below 300 au with SPHERE

A Vigan, C Fontanive, M Meyer, B Biller… - Astronomy & …, 2021 - aanda.org
The SpHere INfrared Exoplanet (SHINE) project is a 500-star survey performed with
SPHERE on the Very Large Telescope for the purpose of directly detecting new substellar …

Forming the cores of giant planets from the radial pebble flux in protoplanetary discs

M Lambrechts, A Johansen - Astronomy & Astrophysics, 2014 - aanda.org
The formation of planetary cores must proceed rapidly in order for the giant planets to
accrete their gaseous envelopes before the dissipation of the protoplanetary gas disc (≲ 3 …

Population-level eccentricity distributions of imaged exoplanets and brown dwarf companions: dynamical evidence for distinct formation channels

BP Bowler, SC Blunt, EL Nielsen - The Astronomical Journal, 2020 - iopscience.iop.org
The orbital eccentricities of directly imaged exoplanets and brown dwarf companions
provide clues about their formation and dynamical histories. We combine new high-contrast …

Variable protostellar accretion with episodic bursts

EI Vorobyov, S Basu - The Astrophysical Journal, 2015 - iopscience.iop.org
We present the latest development of the disk gravitational instability and fragmentation
model, originally introduced by us to explain episodic accretion bursts in the early stages of …

The VLT/NaCo large program to probe the occurrence of exoplanets and brown dwarfs at wide orbits-IV. Gravitational instability rarely forms wide, giant planets

A Vigan, M Bonavita, B Biller, D Forgan, K Rice… - Astronomy & …, 2017 - aanda.org
Understanding the formation and evolution of giant planets (≥ 1 M Jup) at wide orbital
separation (≥ 5 AU) is one of the goals of direct imaging. Over the past 15 yr, many surveys …

On the existence of accretion-driven bursts in massive star formation

DMA Meyer, EI Vorobyov, R Kuiper… - Monthly Notices of the …, 2017 - academic.oup.com
Accretion-driven luminosity outbursts are a vivid manifestation of variable mass accretion on
to protostars. They are known as the so-called FU Orionis phenomenon in the context of low …

Heavy metal rules. I. Exoplanet incidence and metallicity

V Adibekyan - Geosciences, 2019 - mdpi.com
The discovery of only a handful of exoplanets required establishing a correlation between
giant planet occurrence and metallicity of their host stars. More than 20 years have already …

Giant planet and brown dwarf formation

G Chabrier, A Johansen, M Janson… - arXiv preprint arXiv …, 2014 - arxiv.org
Understanding the dominant brown dwarf and giant planet formation processes, and finding
out whether these processes rely on completely different mechanisms or share common …