Scaling law of the reduced magnetic helicity in fast streams
2011 (English)In: Planetary and Space Science, ISSN 0032-0633, E-ISSN 1873-5088, Vol. 59, no 7, 575-579 p.Article in journal (Refereed) Published
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.
Place, publisher, year, edition, pages
2011. Vol. 59, no 7, 575-579 p.
Interplanetary magnetic fields, Space plasma turbulence, Stochastic processes
IdentifiersURN: urn:nbn:se:uu:diva-153558DOI: 10.1016/j.pss.2010.04.017ISI: 000290078100016OAI: oai:DiVA.org:uu-153558DiVA: diva2:417224