VLBI Observations of Turbulence in the Inner Solar Wind

Details VLBI Observations of Turbulence in the Inner Solar Wind VLBI Observations of Turbulence in the Inner Solar Wind

Mar 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996ap%26ss.243...65s&link_type=abstract

Solar and Interplanetary Transients, proceedings of IAU Colloquium 154, held in Pune, India, January 23-27, 1995. ASTROPHYSICS A

Astronomy and Astrophysics

Astrophysics

1

Scientific paper

I discuss the use of Very Long Baseline Interferometer (VLBI) phase scintillations to probe the conditions of plasma turbulence in the solar wind. Specific results from 5.0 and 8.4 GHz observations with the Very Long Baseline Array (VLBA) are shown. There are several advantages of phase scintillation measurements. They are sensitive to fluctuations on scales of hundreds to thousands of kilometers, much larger than those probed by IPS intensity scintillations. In addition, with the frequency versatility of the VLBA one can measure turbulence from the outer corona ˜5 10R &sun; to well past the perihelion approach of the Helios spacecraft. This permits tests of the consistency of radio propagation and direct in-situ measurements of turbulence. Such a comparison is made in the present paper. Special attention is dedicated to measuring the dependence of the normalization coefficient of the density power spectrum,C {/N 2} on distance from the sun. Our results are consistent with the contention published several years ago by Aaron Roberts, that there is insufficient turbulence close to the sun to account for the heating and acceleration of the solar wind. In addition, an accurate determination of theC {/N 2} (R) relationship could aid the detection of transients in the solar wind.

Affiliated with

Also associated with

No associations

Rating

VLBI Observations of Turbulence in the Inner Solar Wind 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 VLBI Observations of Turbulence in the Inner Solar Wind, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and VLBI Observations of Turbulence in the Inner Solar Wind will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1643694