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On the scaling feat...
On the scaling features of magnetic field fluctuations at non-MHD scales in turbulent space plasmas
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- Consolini, G. (author)
- INAF Ist Astrofis & Planetol Spaziali, Rome, Italy
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- Giannattasio, F. (author)
- INAF Ist Astrofis & Planetol Spaziali, Rome, Italy
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- Yordanova, Emiliya (author)
- Uppsala universitet,Institutet för rymdfysik, Uppsalaavdelningen
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- Voeroes, Z. (author)
- Austrian Acad Sci, Space Res Inst, Graz, Austria
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- Marcucci, M. F. (author)
- INAF Ist Astrofis & Planetol Spaziali, Rome, Italy
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- Echim, M. (author)
- Belgian Inst Aeron, Brussels, Belgium;Inst Space Sci, Magurele, Romania
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- Chang, T. (author)
- MIT, Kavli Inst Astrophys & Space Res, 77 Massachusetts Ave, Cambridge, MA 02139 USA
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(creator_code:org_t)
- 2016-11-22
- 2016
- English.
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In: 15th Annual International Astrophysics Conference. - : IOP Publishing.
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Abstract
Subject headings
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- In several different contexts space plasmas display intermittent turbulence at magneto-hydro-dynamic (MHD) scales, which manifests in anomalous scaling features of the structure functions of the magnetic field increments. Moving to smaller scales, i.e. below the ion-cyclotron and/or ion inertial length, these scaling features are still observed, even though its is not clear if these scaling features are still anomalous or not. Here, we investigate the nature of scaling properties of magnetic field increments at non-MHD scales for a period of fast solar wind to investigate the occurrence or not of multifractal features and collapsing of probability distribution functions (PDFs) using the novel Rank-Ordered Multifractal Analysis (ROMA) method, which is more sensitive than the traditional structure function approach. We find a strong evidence for the occurrence of a near mono-scaling behavior, which suggests that the observed turbulent regime at non-MHD scales mainly displays a mono-fractal nature of magnetic field increments. The results are discussed in terms of a non-compact fractal structure of the dissipation field.
Subject headings
- NATURVETENSKAP -- Fysik -- Fusion, plasma och rymdfysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Fusion, Plasma and Space Physics (hsv//eng)
Publication and Content Type
- ref (subject category)
- kon (subject category)
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