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Related papers: Protoplanetary disc evolution affected by star-dis…

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What is the numerical reproducibility of a stellar system (including its discs) when evolving only a sub-set of (partially-evolved) smoothed particle hydrodynamics (SPH) particles? To investigate this, we modelled the evolution of 29 star…

Solar and Stellar Astrophysics · Physics 2024-01-10 James Wurster , Connar Rowan

Recent observations of large-scale asymmetric features in protoplanetary disks suggest that large-scale vortices exist in such disks. Massive planets are known to be able to produce deep gaps in protoplanetary disks. The gap edges could…

Earth and Planetary Astrophysics · Physics 2014-06-11 Wen Fu , Hui Li , Stephen Lubow , Shengtai Li

The past decade has seen a revolution in our understanding of protoplanetary disk evolution and planet formation in single star systems. However, the majority of solar-type stars form in binary systems, so the impact of binary companions on…

Earth and Planetary Astrophysics · Physics 2015-05-30 Adam L. Kraus , Michael J. Ireland , Lynne A. Hillenbrand , Frantz Martinache

Galactic discs are known to have exponential radial profiles in luminosity and stellar surface density in their bright inner regions. Nonetheless, their faint outer regions often display a break, with either a down-bending or an up-bending…

Astrophysics of Galaxies · Physics 2025-09-24 M. Mondelin , F. Bournaud , J-C. Cuillandre , P. Hennebelle

We compare the observed size distribution of circum stellar disks in the Orion Trapezium cluster with the results of $N$-body simulations in which we incorporated an heuristic prescription for the evolution of these disks. In our…

Solar and Stellar Astrophysics · Physics 2016-01-27 Simon Portegies Zwart

Planet formation models rely on knowledge of the physical conditions and evolutionary processes in protoplanetary disks, in particular the grain size distribution and dust growth timescales. In theoretical models, several barriers exist…

Earth and Planetary Astrophysics · Physics 2024-01-26 Nienke van der Marel , Paola Pinilla

Discs of gas and dust surrounding young stars are the birthplace of planets. However, direct detection of protoplanets forming within discs has proved elusive to date. We present the detection of a large, localized deviation from Keplerian…

Solar and Stellar Astrophysics · Physics 2018-06-27 C. Pinte , D. J. Price , F. Menard , G. Duchene , W. R. F. Dent , T. Hill , I. de Gregorio-Monsalvo , A. Hales , D. Mentiplay

In our current interpretation of the hierarchical structure of the universe it is well established that galaxies collide and merge with each other during their lifetime. If massive black holes (MBHs) reside in galactic centres, we expect…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-12 Pau Amaro-Seoane , Patrick Brem , Jorge Cuadra

We study the growth of stellar discs of Milky Way-sized galaxies using a suite of cosmological simulations. We calculate the half-mass axis lengths and axis ratios of stellar populations split by age in isolated galaxies with stellar mass…

Astrophysics of Galaxies · Physics 2022-08-16 Xi Meng , Oleg Y. Gnedin

Direct imaging observations of planets revealed that wide-orbit ($>10$ au) giant planets exist even around subsolar-metallicity host stars and do not require metal-rich environments for their formation. A possible formation mechanism of…

Earth and Planetary Astrophysics · Physics 2023-07-27 Ryoki Matsukoba , Eduard I. Vorobyov , Takashi Hosokawa , Manuel Guedel

We combine the output of hydrodynamical simulations of Population III star cluster formation with stellar evolution models, and calculate the evolution of protostars experiencing variable mass accretion rates due to interactions within a…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-03 Rowan J. Smith , Takashi Hosokawa , Kazuyuki Omukai , Simon C. O. Glover , Ralf S. Klessen

We couple star cluster formation and feedback simulations of a Carina-like star forming region with 1D disc evolutionary models to study the impact of external photoevaporation on disc populations in massive star forming regions. To…

Earth and Planetary Astrophysics · Physics 2022-03-30 Lin Qiao , Thomas J. Haworth , Andrew D. Sellek , Ahmad A. Ali

Young massive stars influence their surroundings from local to galactic scales, but the observational challenges associated with their distance and embedded nature has, until the recent decade, made high-resolution studies of these objects…

Solar and Stellar Astrophysics · Physics 2021-10-27 A. J. Frost , R. D. Oudmaijer , S. L. Lumsden , W-J de Wit

One of the main problems in planet formation, hampering the growth of small dust to planetesimals, is the so-called radial-drift barrier. Pebbles of cm to dm sizes are thought to drift radially across protoplanetary discs faster than they…

Earth and Planetary Astrophysics · Physics 2020-03-24 Anthony J. L. Garcia , Jean-François Gonzalez

Formation, evolution, and dispersal processes of protoplanetary disks are investigated and the disk lifetime is estimated. Gravitational collapse of a pre-stellar core forms both a central star and a protoplanetary disk. The central star…

Solar and Stellar Astrophysics · Physics 2016-11-22 Shigeo S. Kimura , Masanobu Kunitomo , Sanemichi Z. Takahashi

This prospective chapter gives our view on the evolution of the study of circumstellar discs within the next 20 years from both observational and theoretical sides. We first present the expected improvements in our knowledge of…

Earth and Planetary Astrophysics · Physics 2019-02-06 Quentin Kral , Cathie Clarke , Mark Wyatt

Recent observations have suggested that circumstellar disks may commonly form around young stellar objects. Although the formation of circumstellar disks can be a natural result of the conservation of angular momentum in the parent cloud,…

(Abridged) Observational surveys of entire star-forming regions have provided evidence of power-law correlations between the disc properties and the stellar mass, especially the disc mass (${M_d \propto M_*}^{\lambda_m}$) and the accretion…

We couple non-magnetic, hydrodynamical simulations of collapsing protostellar cores with radiative transfer evolutionary models to generate synthetic observations. We then use these synthetic observations to investigate the extent to which…

Astrophysics of Galaxies · Physics 2015-06-22 Michael M. Dunham , Eduard I. Vorobyov , Héctor G. Arce

We study the effect of stellar evolution on the dispersal of protoplanatary disks by performing one-dimensional simulations of long-term disk evolution. Our simulations include viscous disk accretion, magnetohydrodynamic winds, and…

Earth and Planetary Astrophysics · Physics 2025-03-18 Ayano Komaki , Naoki Yoshida