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Self-similar signature of the active solar corona within the inertial range of solar-wind turbulence
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Kiyani, K., Chapman, Sandra C., Hnat, B. and Nicol, Ruth Mary (2007) Self-similar signature of the active solar corona within the inertial range of solar-wind turbulence. Physical Review Letters, Vol.98 . doi:10.1103/PhysRevLett.98.211101 ISSN 0031-9007.
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Official URL: http://dx.doi.org/10.1103/PhysRevLett.98.211101
Abstract
We quantify the scaling of magnetic energy density in the inertial range of solar-wind turbulence seen
in situ at 1 AU with respect to solar activity. At solar maximum, when the coronal magnetic field is
dynamic and topologically complex, we find self-similar scaling in the solar wind, whereas at solar
minimum, when the coronal fields are more ordered, we find multifractality. This quantifies the solar-wind
signature that is of direct coronal origin and distinguishes it from that of local MHD turbulence, with
quantitative implications for coronal heating of the solar wind.
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QC Physics | ||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||
Library of Congress Subject Headings (LCSH): | Geophysics -- Data processing, Solar wind, Sun -- Corona | ||||
Journal or Publication Title: | Physical Review Letters | ||||
Publisher: | American Physical Society | ||||
ISSN: | 0031-9007 | ||||
Official Date: | 23 May 2007 | ||||
Dates: |
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Volume: | Vol.98 | ||||
DOI: | 10.1103/PhysRevLett.98.211101 | ||||
Status: | Peer Reviewed | ||||
Access rights to Published version: | Restricted or Subscription Access | ||||
Funder: | Particle Physics and Astronomy Research Council (Great Britain) (PPARC) |
Data sourced from Thomson Reuters' Web of Knowledge
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