Tensor anisotropy of cosmic rays

Long-termobservations of the muon intensity of galactic cosmic rays at the Nagoya (35°10′ N, 136°58′ E) and Yakutsk (62°01′ N, 129°43′ E) stations have revealed amplitude-phase annual and semiannual oscillations of the semidiurnal variation. These oscillations are attributable to the properties of the cosmic-ray anisotropy tensor that result from shielding by the interplanetary magnetic field and solar-wind shear flow. The mentioned tensor is also shown to have a north-south asymmetry.     

Determination of the Enhancement in Electron Temperature in the Subauroral Ionosphere during Magnetic Storms on a Global Scale

Geomagnetism and Aeronomy - An attempt was made to determine on a global scale the zone of enhanced electron temperature (Te) in the subauroral ionosphere during magnetic storms via the combination...     

Cosmic-ray anisotropy and density near the neutral sheet of the interplanetary magnetic field

The behavior of the cosmic-ray intensity and anisotropy near the neutral sheet of the interplanetary magnetic field has been studied at the sector-boundary crossing times. The detected patterns are indicative of a north-south asymmetry in the interplanetary magnetic field attributable to a systematic shift of its neutral sheet into the southern hemisphere.     

Heliospheric modulation of cosmic rays in solar cycles 19–23

The previously developed basic theory of the heliospheric modulation of high-energy cosmic rays is generalized to lower energies. Comparison of the theory with the results of long-term observations of cosmic rays in the stratosphere carried out by the group from the Lebedev Institute of Physics inMoscow andMurmansk shows satisfactory agreement. The cosmic rays are shown to behave quite differently when even and odd solar cycles alternate. Possible causes of the anomalously high cosmic-ray intensity recorded during the last solar activity minimum are discussed.     

Formation of a Ring-Shaped Region of Increased Electron Temperature in the Subauroral Ionosphere in Winter

Geomagnetism and Aeronomy - The results of numerical simulations of the electron temperature (Te) are compared with measurement data provided by the CHAMP satellite to show the possibility of the...     

Variations in Ionospheric Parameters during the Formation of a Polarization Jet

Geomagnetism and Aeronomy - The calculation results and experimental data on the formation and development of a polarization jet in subauroral latitudes are compared. It is shown that the...