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Scaling law of the reduced magnetic helicity in fast streams

Perri, S. (author)
Carbone, V. (author)
Yordanova, Emiliya (author)
Uppsala universitet,Institutet för rymdfysik, Uppsalaavdelningen
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Bruno, R. (author)
Balogh, A. (author)
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 (creator_code:org_t)
Elsevier BV, 2011
2011
English.
In: Planetary and Space Science. - : Elsevier BV. - 0032-0633 .- 1873-5088. ; 59:7, s. 575-579
  • Journal article (peer-reviewed)
Abstract Subject headings
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  • The reduced magnetic helicity is a quantity related to the handedness of the magnetic field fluctuations. In the present paper we study the scaling law of the reduced magnetic helicity in fast streams in the solar wind by using high-resolution magnetic field data by the Ulysses spacecraft. We show that at high frequencies both the left-hand and the right-hand helicity survives, implying that there is no predominance of a single sign. In addition, the scaling law of the magnetic helicity exhibits a strong dependence on the data set analyzed and we do not observe any universal behavior.

Subject headings

NATURVETENSKAP  -- Fysik (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences (hsv//eng)

Keyword

Interplanetary magnetic fields
Space plasma turbulence
Stochastic processes
Physics
Fysik

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ref (subject category)
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Perri, S.
Carbone, V.
Yordanova, Emili ...
Bruno, R.
Balogh, A.
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NATURAL SCIENCES
NATURAL SCIENCES
and Physical Science ...
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Planetary and Sp ...
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Uppsala University

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