Efimov, A. I., Lukanina, L. A., Samoznaev, L. N., Rudash, V. K., Chashei, I. V., Bird, M. K. and Paetzold, M. (2014). Two-Way Frequency Fluctuations Observed During Coronal Radio Sounding Experiments. Sol. Phys., 289 (5). S. 1715 - 1730. DORDRECHT: SPRINGER. ISSN 1573-093X

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Abstract

Coronal radio-sounding experiments were carried out using two-way coherent dual-frequency carrier signals of the ESA spacecraft Rosetta (ROS) in 2006. Frequency measurements recorded at both NASA and ESA tracking stations (sample rate: 1 Hz) are analyzed in this work. Spectral analysis of the S-band, X-band, and differential frequency records has shown that the mean frequency fluctuation of each signal can be described by a radial power-law function of the form sigma (i) =A (i) (R/R-aS (TM))(-mi) , where i=x,s,sx. The ratio of the coefficients A (s) and A (x) is not the expected theoretical value A (s)/A (x)=f (s)/f (x). This occurs because the X-band fluctuations underlie a two-way propagation mode while the S-band fluctuations are essentially the product of a one-way propagation experiment. Results are compared with similar, but not identical, two-way radio propagation experiments performed during the 1991 solar conjunction of the Ulysses spacecraft.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Efimov, A. I.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Lukanina, L. A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Samoznaev, L. N.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Rudash, V. K.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Chashei, I. V.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Bird, M. K.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Paetzold, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
URN: urn:nbn:de:hbz:38-440378
DOI: 10.1007/s11207-013-0417-2
Journal or Publication Title: Sol. Phys.
Volume: 289
Number: 5
Page Range: S. 1715 - 1730
Date: 2014
Publisher: SPRINGER
Place of Publication: DORDRECHT
ISSN: 1573-093X
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
SOLAR-WIND TURBULENCE; MARS-EXPRESS; CROSS-CORRELATION; SPACECRAFT; SPECTRAMultiple languages
Astronomy & AstrophysicsMultiple languages
URI: http://kups.ub.uni-koeln.de/id/eprint/44037

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