Anisotropy of the magnetic correlation function in the inner heliosphere

Details Anisotropy of the magnetic correlation function in the inner heliosphere Anisotropy of the magnetic correlation function in the inner heliosphere

Mar 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aipc.1216..160r&link_type=abstract

TWELFTH INTERNATIONAL SOLAR WIND CONFERENCE. AIP Conference Proceedings, Volume 1216, pp. 160-163 (2010).

Astronomy and Astrophysics

Astrophysics

2

Solar Wind, Magnetohydrodynamics, Turbulence, Solar Corona, Particle Emission, Solar Wind, Magnetohydrodynamics And Plasmas, Convection, Turbulence, And Diffusion, Coronal Mass Ejection

Scientific paper

For over four decades, low frequency plasma and electromagnetic fluctuations have been observed in the solar wind (SW), making it the most completely studied case of magnetohydrodynamic turbulence in astrophysics, and the only one extensively and directly studied using in situ observations. Magnetohydrodynamic scale fluctuations in the SW are usually anisotropic with respect to the local mean magnetic field (B0). In this work, we present a study of turbulent properties in the inner heliosphere (solar wind between 0.3 and 1 AU) based on modeling in situ plasma and magnetic observations collected by Helios 1 and Helios 2 spacecraft throughout a solar minimum. We present preliminary results on the evolution of the spatial structure of the magnetic self-correlation function in the inner heliosphere. In particular we focus on the evolution of the integral length scale (λ) for magnetic fluctuations and on its anisotropy in the inertial range. As previously known from different studies, we confirm that near Earth λ||>λ⊥ (with λ|| and λ⊥ representing the integral length in the parallel and perpendicular directions respect to B0, respectively). However, for lower distances to the Sun we found that λ||<λ⊥. Results presented here will help us to refine models used to describe the turbulence and waves activity in the inner heliosphere.

Affiliated with

Also associated with

No associations

Rating

Anisotropy of the magnetic correlation function in the inner heliosphere 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 Anisotropy of the magnetic correlation function in the inner heliosphere, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Anisotropy of the magnetic correlation function in the inner heliosphere will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1423500