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Related papers: Channels for streaming instability in dusty discs

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Streaming instability is a powerful mechanism which concentrates dust grains in pro- toplanetary discs, eventually up to the stage where they collapse gravitationally and form planetesimals. Previous studies inferred that it should be…

Earth and Planetary Astrophysics · Physics 2017-11-01 Jérémy Auffinger , Guillaume Laibe

The streaming instability is a promising mechanism to overcome the barriers in direct dust growth and lead to the formation of planetesimals. Most previous studies of the streaming instability, however, were focused on a local region of a…

Earth and Planetary Astrophysics · Physics 2015-06-22 Chao-Chin Yang , Anders Johansen

Under the right conditions, the streaming instability between imperfectly coupled dust and gas is a powerful mechanism for planetesimal formation as it can concentrate dust grains to the point of gravitational collapse. In its simplest…

Earth and Planetary Astrophysics · Physics 2021-02-04 Min-Kai Lin

The streaming instability, a promising mechanism to drive planetesimal formation in dusty protoplanetary discs, relies on aerodynamic drag naturally induced by the background radial pressure gradient. This gradient should vary in disks, but…

Earth and Planetary Astrophysics · Physics 2026-03-09 Stanley A. Baronett , Chao-Chin Yang , Zhaohuan Zhu

Recent study suggests that the streaming instability, one of the leading mechanisms for driving the formation of planetesimals, may not be as efficient as previously thought. Under some disc conditions, the growth timescale of the…

Earth and Planetary Astrophysics · Physics 2020-12-02 Zhaohuan Zhu , Chao-Chin Yang

Interpenetrating streams of solids and gas in a Keplerian disk produce a local, linear instability. The two components mutually interact via aerodynamic drag, which generates radial drift and triggers unstable modes. The secular instability…

Astrophysics · Physics 2009-11-10 Andrew N. Youdin , Jeremy Goodman

The streaming instability is a leading candidate mechanism to explain the formation of planetesimals. Yet, the role of this instability in the driving of turbulence in protoplanetary disks, given its fundamental nature as a linear…

Earth and Planetary Astrophysics · Physics 2020-04-08 Urs Schäfer , Anders Johansen , Robi Banerjee

The streaming instability is thought to play a central role in the early stages of planet formation by enabling the efficient bypass of a number of barriers hindering the formation of planetesimals. We present the first study exploring the…

Earth and Planetary Astrophysics · Physics 2019-06-19 Leonardo Krapp , Pablo Benítez-Llambay , Oliver Gressel , Martin E. Pessah

We develop simple, physically motivated models for drag-induced dust-gas streaming instabilities, which are thought to be crucial for clumping grains to form planetesimals in protoplanetary disks. The models explain, based on the physics of…

Earth and Planetary Astrophysics · Physics 2020-08-19 Jonathan Squire , Philip F. Hopkins

Streaming instability can be a very efficient way of overcoming growth and drift barriers to planetesimal formation. However, it was shown that strong clumping, which leads to planetesimal formation, requires a considerable number of large…

Earth and Planetary Astrophysics · Physics 2014-12-03 Joanna Drazkowska , Cornelis P. Dullemond

The streaming instability is a promising mechanism for planetesimal formation. The instability can rapidly form dense clumps that collapse self-gravitationally, which is efficient for large dust grains with the Stokes number on the order of…

Earth and Planetary Astrophysics · Physics 2025-03-04 Ryosuke T. Tominaga , Hidekazu Tanaka

The streaming instability is a promising mechanism to induce the formation of planetesimals. Nonetheless, this process has been found in previous studies to require either a dust-to-gas surface density ratio or a dust size that is enhanced…

Earth and Planetary Astrophysics · Physics 2022-10-19 Urs Schäfer , Anders Johansen

The streaming instability is a fundamental process that can drive dust-gas dynamics and ultimately planetesimal formation in protoplanetary discs. As a linear instability, it has been shown that its growth with a distribution of dust sizes…

Earth and Planetary Astrophysics · Physics 2021-10-20 Chao-Chin Yang , Zhaohuan Zhu

The streaming instability is one of the most promising pathways to the formation of planetesimals from pebbles. Understanding how this instability operates under realistic conditions expected in protoplanetary disks is therefore crucial to…

Earth and Planetary Astrophysics · Physics 2022-02-16 Min-Kai Lin , Chun-Yen Hsu

We present numerical simulations of dust clumping and planetesimal formation initiated by the streaming instability with self-gravity. We examine the variability in the planetesimal formation process by employing simulation domains with…

Earth and Planetary Astrophysics · Physics 2020-11-04 Josef Rucska , James Wadsley

The streaming instability is a leading mechanism for concentrating solids and initiating planetesimal formation in protoplanetary disks. Although numerous studies have explored its linear growth, nonlinear evolution, and implications for…

The streaming instability is a popular candidate for planetesimal formation by concentrating dust particles to trigger gravitational collapse. However, its robustness against physical conditions expected in protoplanetary disks is unclear.…

Earth and Planetary Astrophysics · Physics 2020-03-25 Kan Chen , Min-Kai Lin

Streaming instability is a key mechanism in planet formation, clustering pebbles into planetesimals. It is triggered at a particular disk location where the local volume density of solids exceeds that of the gas. After their formation,…

Earth and Planetary Astrophysics · Physics 2019-04-24 Beibei Liu , Chris W. Ormel , Anders Johansen

Occurring in protoplanetary discs composed of dust and gas, streaming instabilities are a favoured mechanism to drive the formation of planetesimals. The Polydispserse Streaming Instability is a generalisation of the Streaming Instability…

Earth and Planetary Astrophysics · Physics 2021-01-27 Sijme-Jan Paardekooper , Colin P. McNally , Francesco Lovascio

Streaming instability is considered to be one of the dominant processes to promote planetesimal formation by gravitational collapse of dust clumps. The development of streaming instability is expected to form dust clumps in which the local…

Earth and Planetary Astrophysics · Physics 2023-10-10 Ryosuke T. Tominaga , Hidekazu Tanaka
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