Results 31 to 40 of about 5,220,245 (377)

Planet formation by pebble accretion in ringed disks [PDF]

open access: yesAstronomy & Astrophysics, 2020
Context. Pebble accretion is expected to be the dominant process for the formation of massive solid planets, such as the cores of giant planets and super-Earths.
A. Morbidelli
semanticscholar   +1 more source

The new generation planetary population synthesis (NGPPS). I. Bern global model of planet formation and evolution, model tests, and emerging planetary systems [PDF]

open access: yesAstronomy & Astrophysics, 2020
Aims. Comparing theoretical models of exoplanet formation with observations allows one to make key step forward towards an understanding of planetary systems.
A. Emsenhuber   +5 more
semanticscholar   +1 more source

An Analytical Theory for the Growth from Planetesimals to Planets by Polydisperse Pebble Accretion

open access: yesThe Astrophysical Journal, 2023
Pebble accretion is recognized as a significant accelerator of planet formation. Yet only formulae for single-sized (monodisperse) distribution have been derived in the literature.
Wladimir Lyra   +3 more
doaj   +1 more source

Interior and Evolution of the Giant Planets

open access: yesRemote Sensing, 2023
The giant planets were the first to form and hold the key to unveiling the solar system’s formation history in their interiors and atmospheres.
Yamila Miguel, Allona Vazan
doaj   +1 more source

Early planet formation as a trigger for further planet formation [PDF]

open access: yes, 1999
Recent discoveries of extrasolar planets at small orbital radii, or with significant eccentricities, indicate that interactions between massive planets and the disks of gas and dust from which they formed are vital for determining the final shape of ...
Armitage, Philip J., Hansen, Brad M. S.
core   +3 more sources

Setting the Stage: Planet Formation and Volatile Delivery [PDF]

open access: yes, 2020
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 processes that these experience during the planetary assembly and ...
J. Venturini, M. P. Ronco, O. Guilera
semanticscholar   +1 more source

Long-term Protoplanetary Disk Evolution from Molecular Cloud Core Collapse and Implications for Planet Formation. I. Weak and Moderate Disk Self-gravities

open access: yesThe Astrophysical Journal, 2023
We construct a one-dimensional protoplanetary disk model to investigate long-term disk evolution from molecular cloud core collapse. To obtain details of disk evolution, instead of solving the traditional diffusion equation for disk surface density, we ...
Xin-Ming Wang
doaj   +1 more source

The interplay between X-ray photoevaporation and planet formation [PDF]

open access: yes, 2013
We assess the potential of planet formation instigating the early formation of a photoevaporation driven gap, up to radii larger than typical for photoevaporation alone.
Armitage, Philip J.   +3 more
core   +2 more sources

Stokes trapping and planet formation [PDF]

open access: yes, 2007
It is believed that planets are formed by aggregation of dust particles suspended in the turbulent gas forming accretion disks around developing stars. We describe a mechanism, termed 'Stokes trapping', by which turbulence limits the growth of aggregates
Mehlig, B., Uski, V., Wilkinson, M.
core   +2 more sources

Observing planet formation

open access: green, 2016
Planets are thought to form in the circumstellar disks orbiting young stars in formation. According to the core-accretion model, a candidate scenario for Earth-like planets, the interstellar sub-$\mu$m-sized dust particles grow thanks to collisions to mm/cm size and then form km-sized planetesimals via dynamical encounters.
Marco Tazzari
openalex   +3 more sources

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