Voyager 2 observation of the multifractal spectrum in the heliosphere and the heliosheath
We look in detail at the multifractal scaling of the fluctuations in the interplanetary magnetic field strength as measured onboard Voyager 2 in the entire heliosphere and even in the heliosheath. More specifically, we analyse the spectra observed by Voyager 2 in a wide range of solar activity cycle...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2013-11-01
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| Series: | Nonlinear Processes in Geophysics |
| Online Access: | http://www.nonlin-processes-geophys.net/20/1061/2013/npg-20-1061-2013.pdf |
| _version_ | 1828288359094550528 |
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| author | W. M. Macek A. Wawrzaszek |
| author_facet | W. M. Macek A. Wawrzaszek |
| author_sort | W. M. Macek |
| collection | DOAJ |
| description | We look in detail at the multifractal scaling of the fluctuations in the
interplanetary magnetic field strength as measured onboard Voyager 2
in the entire heliosphere and even in the heliosheath. More specifically, we
analyse the spectra observed by Voyager 2 in a wide range of solar
activity cycles during the years 1980–2009 at various heliospheric latitudes
and distances from 6 to 90 astronomical units (AU). We focus on the
singularity multifractal spectrum before and after crossing the termination
heliospheric shock by Voyager 2 at 84 AU from the Sun.
In addition, we investigate here the parameters of the model that describe
the asymmetry of the spectrum, depending on the solar cycle. It is worth
noting that the spectrum is prevalently right-skewed inside the whole
heliosphere. Moreover, we have possibly observed a change in the asymmetry of
the spectrum at the termination shock. We show that the degree of
multifractality is modulated by the solar activity. Hence these basic results
also bring significant support to some earlier claims suggesting that the
solar wind termination shock is asymmetric. |
| first_indexed | 2024-04-13T10:03:10Z |
| format | Article |
| id | doaj.art-80400e01929346b5bcae7eda41a0bb9c |
| institution | Directory Open Access Journal |
| issn | 1023-5809 1607-7946 |
| language | English |
| last_indexed | 2024-04-13T10:03:10Z |
| publishDate | 2013-11-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Nonlinear Processes in Geophysics |
| spelling | doaj.art-80400e01929346b5bcae7eda41a0bb9c2022-12-22T02:51:11ZengCopernicus PublicationsNonlinear Processes in Geophysics1023-58091607-79462013-11-012061061107010.5194/npg-20-1061-2013Voyager 2 observation of the multifractal spectrum in the heliosphere and the heliosheathW. M. Macek0A. Wawrzaszek1Space Research Centre, Polish Academy of Science, Bartycka 18A, 00-716 Warsaw, PolandSpace Research Centre, Polish Academy of Science, Bartycka 18A, 00-716 Warsaw, PolandWe look in detail at the multifractal scaling of the fluctuations in the interplanetary magnetic field strength as measured onboard Voyager 2 in the entire heliosphere and even in the heliosheath. More specifically, we analyse the spectra observed by Voyager 2 in a wide range of solar activity cycles during the years 1980–2009 at various heliospheric latitudes and distances from 6 to 90 astronomical units (AU). We focus on the singularity multifractal spectrum before and after crossing the termination heliospheric shock by Voyager 2 at 84 AU from the Sun. In addition, we investigate here the parameters of the model that describe the asymmetry of the spectrum, depending on the solar cycle. It is worth noting that the spectrum is prevalently right-skewed inside the whole heliosphere. Moreover, we have possibly observed a change in the asymmetry of the spectrum at the termination shock. We show that the degree of multifractality is modulated by the solar activity. Hence these basic results also bring significant support to some earlier claims suggesting that the solar wind termination shock is asymmetric.http://www.nonlin-processes-geophys.net/20/1061/2013/npg-20-1061-2013.pdf |
| spellingShingle | W. M. Macek A. Wawrzaszek Voyager 2 observation of the multifractal spectrum in the heliosphere and the heliosheath Nonlinear Processes in Geophysics |
| title | Voyager 2 observation of the multifractal spectrum in the heliosphere and the heliosheath |
| title_full | Voyager 2 observation of the multifractal spectrum in the heliosphere and the heliosheath |
| title_fullStr | Voyager 2 observation of the multifractal spectrum in the heliosphere and the heliosheath |
| title_full_unstemmed | Voyager 2 observation of the multifractal spectrum in the heliosphere and the heliosheath |
| title_short | Voyager 2 observation of the multifractal spectrum in the heliosphere and the heliosheath |
| title_sort | voyager 2 observation of the multifractal spectrum in the heliosphere and the heliosheath |
| url | http://www.nonlin-processes-geophys.net/20/1061/2013/npg-20-1061-2013.pdf |
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