Search Publications

The Nature of Variations in Anomalies of the Chemical Composition of the Solar Corona with the 11-Year Cycle

Pipin, V. V.; Tomozov, V. M.

Evidence that the distribution of the abundances of admixtures with low first-ionization potentials (FIP < 10 eV) in the lower solar corona could be associated with the typology of the largescale magnetic field is presented. Solar observations show an enhancement in the abundances of elements with low FIPs compared to elements with high FIPs (&…

The interplanetary magnetic field: Radial and latitudinal dependences

Khabarova, O. V.

Results of the analysis of spacecraft measurements at 1-5.4 AU are presented within the scope of the large-scale interplanetary magnetic field (IMF) structure investigation. The work is focused on revealing of the radial IMF component ( B _r ) variations with heliocentric distance and latitude as seen by Ulysses. It was found out that |…

Turbulence in the Inner Solar Wind Determined from Frequency Fluctuations of the Downlink Signals from the ULYSSES and GALILEO Spacecraft

Plettemeier, D.; Bird, M. K.; Efimov, A. I. +2 more

The results of several sets of measurements of the frequency of radio signals during coronal-sounding experiments carried out from 1991 to 2000 using the ULYSSES and GALILEO spacecraft are presented and analyzed. The S-band signals (carrier frequency f = 2295 MHz) were received at the three 70-m widely spaced ground stations of the NASA Deep Space…