Spectral properties of hydromagnetic fluctuations near 4 and 5 A.U.

Computer Science

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

2

Interplanetary Magnetic Fields, Magnetohydrodynamic Stability, Magnetohydrodynamic Turbulence, Power Spectra, Space Exploration, Magnetic Measurement, Pioneer 10 Space Probe, Pioneer 11 Space Probe, Random Errors, Solar Wind

Scientific paper

Power spectra of vector components of interplanetary magnetic field fluctuations near 4-5 AU during quiet intervals shows a frequency dependence very close to f to the s power over the frequency range 0.00004 to 0.009 Hz (corresponding to periods of 7 hours, 2 minutes). While the spectra are generally very close to power law in frequency, variations in slope among the spectra exceed those expected from random errors and may represent true temporal variations. Mean slopes corrected for systematic error are s = -1.50 + or - 0.02 (Pioneer 10, mean heliocentric distance 5.3 AU) and s = -1.52 + or - 0.02 (Pioneer 11, mean heliocentric distance 3.9 AU) and are consistent with several determinations of spectral slope for magnetic fluctuations near 1 AU. The observations are compared with theoretical models of outward propagating Alfven waves of solar origin and of MHD turbulence, and the mean slopes agree well with that expected for turbulence.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Spectral properties of hydromagnetic fluctuations near 4 and 5 A.U. 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 Spectral properties of hydromagnetic fluctuations near 4 and 5 A.U., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spectral properties of hydromagnetic fluctuations near 4 and 5 A.U. will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1457886

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.