New mechanism of dust growth and gravitation-like instabilities in astrophysical plasmas

R. Bingham, V. N. Tsytovich

Research output: Contribution to journalArticle

33 Citations (Scopus)

Abstract

Dust growth by agglomeration due to a new mechanism of dust attraction is shown to compete in space plasmas with the standard accretion mechanism by neutral particles. We demonstrate that dust growth by accretion of neutrals and plasma particles is aided by a pressure force due to a shadowing effect first proposed (Bingham & Tsytovich 2001) to explain rapid growth of dust in laboratory discharges. Consequences of this new force promoting dust growth by agglomeration in astrophysics are discussed including the role of a new gravitational-like instability which produces clumping enhancing the rate of gravitational collapse.
LanguageEnglish
PagesL43-L47
Number of pages5
JournalAstronomy and Astrophysics
Volume376
Issue number3
DOIs
Publication statusPublished - 4 Sep 2001

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astrophysics
dust
gravitation
plasma
agglomeration
accretion
gravitational instability
space plasmas
gravitational collapse
neutral particles
attraction
particle

Keywords

  • agglomeration
  • dust
  • plasma
  • gravitational collapse

Cite this

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New mechanism of dust growth and gravitation-like instabilities in astrophysical plasmas. / Bingham, R.; Tsytovich, V. N.

In: Astronomy and Astrophysics, Vol. 376, No. 3, 04.09.2001, p. L43-L47.

Research output: Contribution to journalArticle

TY - JOUR

T1 - New mechanism of dust growth and gravitation-like instabilities in astrophysical plasmas

AU - Bingham, R.

AU - Tsytovich, V. N.

PY - 2001/9/4

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N2 - Dust growth by agglomeration due to a new mechanism of dust attraction is shown to compete in space plasmas with the standard accretion mechanism by neutral particles. We demonstrate that dust growth by accretion of neutrals and plasma particles is aided by a pressure force due to a shadowing effect first proposed (Bingham & Tsytovich 2001) to explain rapid growth of dust in laboratory discharges. Consequences of this new force promoting dust growth by agglomeration in astrophysics are discussed including the role of a new gravitational-like instability which produces clumping enhancing the rate of gravitational collapse.

AB - Dust growth by agglomeration due to a new mechanism of dust attraction is shown to compete in space plasmas with the standard accretion mechanism by neutral particles. We demonstrate that dust growth by accretion of neutrals and plasma particles is aided by a pressure force due to a shadowing effect first proposed (Bingham & Tsytovich 2001) to explain rapid growth of dust in laboratory discharges. Consequences of this new force promoting dust growth by agglomeration in astrophysics are discussed including the role of a new gravitational-like instability which produces clumping enhancing the rate of gravitational collapse.

KW - agglomeration

KW - dust

KW - plasma

KW - gravitational collapse

U2 - 10.1051/0004-6361:20011103

DO - 10.1051/0004-6361:20011103

M3 - Article

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SP - L43-L47

JO - Astronomy and Astrophysics

T2 - Astronomy and Astrophysics

JF - Astronomy and Astrophysics

SN - 0004-6361

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