Sign Singularity of the Magnetic Helicity from In Situ Solar Wind Observations

Details Sign Singularity of the Magnetic Helicity from In Situ Solar Wind Observations Sign Singularity of the Magnetic Helicity from In Situ Solar Wind Observations

Oct 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997apj...488..482c&link_type=abstract

Astrophysical Journal v.488, p.482

Astronomy and Astrophysics

Astronomy

14

Magnetohydrodynamics: Mhd, Sun: Solar Wind, Turbulence

Scientific paper

Some turbulent signed measures show a singularity related to extreme oscillations in sign, the scaling behavior of cancellations between positive and negative contributions being characterized by the cancellation exponent kappa . Using in situ observations of magnetic fluctuations in the solar wind, we show that magnetic helicity is sign singular, a property that underlies the dominance of a single sign of polarization of fluctuations at small scales. We recover a statistical correlation between kappa and the bulk solar wind speed when any correlation has been found between kappa and the distance from the Sun. Even if the usual models of magnetic fluctuations based on random phases are able to reproduce (in a statistical sense) the gross features of helicity fluctuations, they cannot reproduce the behavior of sign singularity.

Affiliated with

Also associated with

No associations

Rating

Sign Singularity of the Magnetic Helicity from In Situ Solar Wind Observations does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Sign Singularity of the Magnetic Helicity from In Situ Solar Wind Observations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sign Singularity of the Magnetic Helicity from In Situ Solar Wind Observations will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1769673