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Aims: We investigate the evolution of protoplanetary discs (PPDs hereafter) with magnetically driven disc winds and viscous heating. Methods: We consider an initially massive disc with ~0.1 Msun to track the evolution from the early stage…

Earth and Planetary Astrophysics · Physics 2016-12-07 Takeru K. Suzuki , Masahiro Ogihara , Alessandro Morbidelli , Aurélien Crida , Tristan Guillot

We investigate the evolution of protoplanets with different masses embedded in an accretion disk, via global fully three-dimensional hydrodynamical simulations. We consider a range of planetary masses extending from one and a half Earth's…

Astrophysics · Physics 2016-06-20 Gennaro D'Angelo , Willy Kley , Thomas Henning

The formation, structure and evolution of protoplanetary discs is considered. The formation of giant planets within the environment of these models is also discussed.

Astrophysics · Physics 2007-05-23 J. Papaloizou , C. Terquem , R. Nelson

The detection and characterization of protoplanets in protoplanetary disks around young stars is emerging as a transformative field that will redefine our understanding of how planetary systems form. While current facilities have revealed…

We develop a simple model of planetary formation, focusing our attention on those planets with masses less than 10 Earth masses and studying particularly the primordial spin parameters of planets resulting from the accretion of…

Earth and Planetary Astrophysics · Physics 2015-05-18 Yamila Miguel , Adrián Brunini

Planet evolution is tightly connected to the dynamics of both distant and close disk material. Hence, an appropriate description of disk-planet interaction requires global and high resolution computations, which we accomplish by applying a…

Astrophysics · Physics 2007-05-23 G. D'Angelo , W. Kley , Th. Henning

This paper presents a review of the topic of galaxy formation and evolution, focusing on basic features of galaxies, and how these observables reveal how galaxies and their stars assemble over cosmic time. I give an overview of the observed…

Cosmology and Nongalactic Astrophysics · Physics 2012-12-27 Christopher J. Conselice

The emergence of "big data" offers unprecedented opportunities for not only accelerating scientific advances but also enabling new modes of discovery. Scientific progress in many disciplines is increasingly enabled by our ability to examine…

Computers and Society · Computer Science 2017-07-03 Vasant G. Honavar , Mark D. Hill , Katherine Yelick

The final stages of a protoplanetary disk are essential for our understanding of the formation and evolution of planets. Photoevaporation is an important mechanism that contributes to the dispersal of an accretion disk and has significant…

Earth and Planetary Astrophysics · Physics 2024-07-17 M. Cecil , L. Gehrig , D. Steiner

The timing of formation for the first planetesimals determines the mode of planetary accretion and their geophysical and compositional evolution. Astronomical observations of circumstellar discs and Solar System geochronology provide…

Earth and Planetary Astrophysics · Physics 2022-11-17 A. Bonsor , T. Lichtenberg , J. Drazkowska , A. M. Buchan

A clear understanding of the chemical processing of matter, as it is transferred from a molecular cloud to a planetary system, depends heavily on knowledge of the physical conditions endured by gas and dust as these accrete onto a disk and…

Astrophysics · Physics 2007-05-23 David W. Koerner

Recent observations have demonstrated that some subset of even moderately wide-separation planet-hosting binaries are preferentially configured such that planetary and binary orbits appear to lie within the same plane. In this work, we…

Earth and Planetary Astrophysics · Physics 2024-07-04 Konstantin Gerbig , Malena Rice , J. J. Zanazzi , Sam Christian , Andrew Vanderburg

Disks are ubiquitous in stellar astronomy, and play a crucial role in the formation and evolution of stars. In this contribution we present an overview of the most recent results, with emphasis on high spatial and spectral resolution. We…

Solar and Stellar Astrophysics · Physics 2013-04-09 Rene D. Oudmaijer

We propose a pebble-driven planet formation scenario to form giant planets with high multiplicity and large orbital distances in the early gas disk phase. We perform N-body simulations to investigate the growth and migration of low-mass…

Earth and Planetary Astrophysics · Physics 2020-06-24 John Wimarsson , Beibei Liu , Masahiro Ogihara

The formation of low-mass stars in molecular clouds involves accretion disks and jets, which are of broad astrophysical interest. Accreting stars represent the closest examples of these phenomena. Star and planet formation are also…

Solar and Stellar Astrophysics · Physics 2020-05-21 P. C. Schneider , H. M. Günther , K. France

We investigate accretion of solid materials onto circumplanetary disks from heliocentric orbits rotating in protoplanetary disks, which is a key process for the formation of regular satellite systems. In the late stage of gas-capturing…

Earth and Planetary Astrophysics · Physics 2015-06-18 Takayuki Tanigawa , Akito Maruta , Masahiro N. Machida

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 may account for this diversity, the gravitational…

Numerical simulations have become a major tool for understanding galaxy formation and evolution. Over the decades the field has made significant progress. It is now possible to simulate the formation of individual galaxies and galaxy…

Astrophysics of Galaxies · Physics 2017-08-30 Thorsten Naab , Jeremiah P. Ostriker

Studies of planet migration derived from disc planet interactions began before the discovery of exoplanets. The potential importance of migration for determining orbital architectures being realised, the field received greater attention…

Earth and Planetary Astrophysics · Physics 2021-12-15 J. C. B. Papaloizou