Results 11 to 20 of about 48,368 (320)
Two-Stream Instability of Counter-Rotating Galaxies [PDF]
The Astrophysical Journal, 1996 The present study of the two-stream instability in stellar disks with counter-rotating components of stars and/or gas is stimulated by recently discovered counter-rotating spiral and S0 galaxies.
Bisnovatyi-Kogan G. S. +6 more
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Growth after the streaming instability [PDF]
Astronomy & Astrophysics, 2019 Context. Streaming instability is a key mechanism in planet formation, clustering pebbles into planetesimals with the help of self-gravity. It is triggered at a particular disk location where the local volume density of solids exceeds that of the gas. After their formation, planetesimals can grow into protoplanets by feeding from other planetesimals in
Beibei Liu +2 more
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The Axisymmetric Streaming Instability Revisited [PDF]
The Astrophysical Journal, 2021 Abstract We examine the accuracy of the terminal velocity approximation and clarify a number of misunderstandings regarding the streaming instability in protoplanetary disks under axisymmetric geometry. In the limit of small Stokes number, St ≪ 1, we derive a prediction for the growth rate of the secular modes, which is accurate to the ...
Liubin Pan
openalex +2 more sources
Streaming instability in growing cell populations. [PDF]
Phys Rev Lett, 2010 Flows of cells growing as a quasimonolayer in a confined space can exhibit streaming, with narrow streams of fast-moving cells flowing around clusters of slowly moving cells. We observed and analyzed this phenomenon experimentally for E. coli bacteria proliferating in a microfluidic cell trap using time-lapse microscopy.
Mather W +4 more
europepmc +4 more sources
Lepton-driven Nonresonant Streaming Instability [PDF]
The Astrophysical Journal, 2021 Abstract A strong super-Alfvénic drift of energetic particles (or cosmic rays) in a magnetized plasma can amplify the magnetic field significantly through nonresonant streaming instability (NRSI). While the traditional analysis is done for an ion current, here we use kinetic particle-in-cell simulations to study how the NRSI behaves when
Siddhartha Gupta +2 more
openaire +2 more sources
Polydisperse streaming instability – III. Dust evolution encourages fast instability [PDF]
Monthly Notices of the Royal Astronomical Society, 2021 ABSTRACT Planet formation via core accretion requires the production of kilometre-sized planetesimals from cosmic dust. This process must overcome barriers to simple collisional growth, for which the streaming instability (SI) is often invoked.
Colin P McNally +2 more
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Relativistic two-stream instability [PDF]
General Relativity and Gravitation, 2009 We study the (local) propagation of plane waves in a relativistic, non-dissipative, two-fluid system, allowing for a relative velocity in the "background" configuration. The main aim is to analyze relativistic two-stream instability. This instability requires a relative flow -- either across an interface or when two or more fluids interpenetrate -- and
Samuelsson, Lars +3 more
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Electromechanical Stream-Structure Instabilities [PDF]
The Physics of Fluids, 1969 The dynamics of a highly conducting fluid stream coupled by means of a transverse electric or parallel magnetic field to a conducting elastic medium is examined in detail. From the dispersion relation and the Bers-Briggs criterion, the stability of the infinite length system is described. Eigen-frequencies and eigenfunctions are computed for the finite
Ketterer, F. D., Melcher, J. R.
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STREAM INSTABILITIES IN RELATIVISTICALLY HOT PLASMA [PDF]
The Astrophysical Journal, 2011 10 pages, 6 ...
Shaisultanov, Rashid +2 more
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International Journal of Applied Mechanics and Engineering, 2016 The instability of the plane interface between two uniform, superposed and streaming Rivlin-Ericksen elastico-viscous fluids through porous media, including the ‘effective interfacial tension’ effect, is considered.
M. Singh
doaj +1 more source