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Disc winds and planet-disc interactions are two crucial mechanisms that define the structure, evolution and dispersal of protoplanetary discs. While winds are capable of removing material from discs, eventually leading to their dispersal,…

地球与行星天体物理 · 物理学 2024-05-29 Michael L. Weber , Giovanni Picogna , Barbara Ercolano

Photo-evaporation and planet formation have both been proposed as mechanisms responsible for the creation of a transition disc. We have studied their combined effect through a suite of 2d simulations of protoplanetary discs undergoing X-ray…

地球与行星天体物理 · 物理学 2015-10-21 Giovanni P. Rosotti , Barbara Ercolano , James E. Owen

Photoevaporation driven by high energy radiation from the central star plays an important role in the evolution of protoplanetary discs. Photoevaporative winds have been unambiguously detected through blue-shifted emission lines, but their…

太阳与恒星天体物理 · 物理学 2020-06-24 G. Ballabio , R. D. Alexander , C. J. Clarke

How protoplanetary discs evolve remains an unanswered question. Competing theories of viscosity and magnetohydrodynamic disc winds have been put forward as the drivers of angular momentum transport in protoplanetary discs. These two models…

地球与行星天体物理 · 物理学 2023-12-08 Gavin A. L. Coleman , Joseph K. Mroueh , Thomas J. Haworth

Photoevaporation of planet forming discs by high energy radiation from the central star is potentially a crucial mechanism for disc evolution and it may play an important role in the formation and evolution of planetary system. We present…

地球与行星天体物理 · 物理学 2019-10-25 Giovanni Picogna , Barbara Ercolano , James E. Owen , Michael L. Weber

The assembly and architecture of planetary systems strongly depend on the physical processes governing the evolution and dispersal of protoplanetary disks. Since Protostars and Planets VI, new observations and theoretical insights favor…

地球与行星天体物理 · 物理学 2022-03-21 Ilaria Pascucci , Sylvie Cabrit , Suzan Edwards , Uma Gorti , Oliver Gressel , Takeru Suzuki

The study of protoplanetary disc evolution and planet formation has mainly concentrated on solar (and low) mass stars since they host the majority of the confirmed exoplanets. Nevertheless, the numerous planets found orbiting stars up to…

地球与行星天体物理 · 物理学 2023-11-08 María Paula Ronco , Matthias R. Schreiber , Eva Villaver , Octavio M. Guilera , Marcelo M. Miller Bertolami

We carry out three-dimensional hydrodynamical simulations to study planet-disc interactions for inclined high mass planets, focusing on the disc's secular evolution induced by the planet. We find that, when the planet is massive enough and…

地球与行星天体物理 · 物理学 2018-12-19 Zhaohuan Zhu

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. For our investigation we make use of hydrodynamics models of…

太阳与恒星天体物理 · 物理学 2015-06-12 Giovanni P. Rosotti , Barbara Ercolano , James E. Owen , Philip J. Armitage

Planet-forming disc evolution is not independent of the star formation and feedback process in giant molecular clouds. In particular, OB stars emit UV radiation that heats and disperses discs in a process called 'external photoevaporation'.…

地球与行星天体物理 · 物理学 2022-10-06 Andrew J. Winter , Thomas J. Haworth

I attempt to summarize our knowledge of planet formation in evolving protoplanetary discs. I first review the physics of disc evolution and dispersal. For most of the disc lifetime evolution is driven by accretion and photoevaporation, and…

地球与行星天体物理 · 物理学 2015-06-16 Richard Alexander

Protoplanetary disks are the sites of planet formation, and the evolution and eventual dispersal of these disks strongly influences the formation of planetary systems. Disk evolution during the planet-forming epoch is driven by accretion…

地球与行星天体物理 · 物理学 2015-06-17 Richard Alexander , Ilaria Pascucci , Sean Andrews , Philip Armitage , Lucas Cieza

Protoplanetary disks are quasi-steady structures whose evolution and dispersal determine the environment for planet formation. I review the theory of protoplanetary disk evolution and its connection to observations. Substantial progress has…

太阳与恒星天体物理 · 物理学 2011-08-25 Philip J. Armitage

Planets are born from the gas and dust discs surrounding young stars. Energetic radiation from the central star can drive thermal outflows from the discs atmospheres, strongly affecting the evolution of the discs and the nascent planetary…

地球与行星天体物理 · 物理学 2022-11-21 Barbara Ercolano , Giovanni Picogna

Photoevaporative disc winds play a key role in our understanding of circumstellar disc evolution, especially in the final stages, and they might affect the planet formation process and the final location of planets. The study of transition…

地球与行星天体物理 · 物理学 2023-05-24 Giovanni Picogna , Carolina Schäfer , Barbara Ercolano , Christian Rab , Rafael Franz , Matías Gárate

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 onto the planetary core. The majority of protoplanetary discs are exposed…

地球与行星天体物理 · 物理学 2022-06-08 Andrew J. Winter , Thomas J. Haworth , Gavin A. L. Coleman , Sergei Nayakshin

Past studies have revealed the dependency of the disc parameters (mass, radius, viscosity, grain fragmentation velocity, dust-to-gas ratio) on the formation of giant planets, where more massive discs seem beneficial for giant planet…

地球与行星天体物理 · 物理学 2026-03-18 Angie Daniela Guzmán Franco , Sofia Savvidou , Bertram Bitsch

Understanding the origin of accretion and dispersal of protoplanetary disks is fundamental for investigating planet formation. Recent numerical simulations show that launching winds are unavoidable when disks undergo magnetically driven…

We study the evolution and final dispersal of protoplanetary discs that evolve under the action of internal and external photoevaporation, and different degrees of viscous transport. We identify five distinct dispersal pathways, which are…

地球与行星天体物理 · 物理学 2022-06-08 Gavin A. L. Coleman , Thomas J. Haworth

Protoplanetary discs are dynamic environments where the interplay between chemical processes and mass transport shapes the composition of gas and dust available for planet formation. We investigate the combined effects of volatile chemistry…

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