Vector anisotropy of cosmic rays in the beginning of Forbush effects


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Resumo

We consider the behavior of anisotropy and density of galactic cosmic rays in the first hours of Forbush effects from 1957 to 2014 initiated by the arrival of a shock wave. It has been shown that, as early as the event commencement, the first harmonic of anisotropy tends to increase substantially and its direction changes significantly. The more is powerful the interplanetary disturbance, the greater are the changes. Based on changes in some parameters of anisotropy and density, we can estimate the heliolongitude of the disturbance source, as well as the further development of the Forbush effect and geomagnetic activity.

Sobre autores

A. Belov

Pushkov Institute of Terrestrial Magnetism, Ionosphere and Radio Wave Propagation

Autor responsável pela correspondência
Email: abelov@izmiran.ru
Rússia, Kaluzhskoe shosse 4, Troitsk, Moscow, 108840

M. Abunina

Pushkov Institute of Terrestrial Magnetism, Ionosphere and Radio Wave Propagation

Email: abelov@izmiran.ru
Rússia, Kaluzhskoe shosse 4, Troitsk, Moscow, 108840

A. Abunin

Pushkov Institute of Terrestrial Magnetism, Ionosphere and Radio Wave Propagation

Email: abelov@izmiran.ru
Rússia, Kaluzhskoe shosse 4, Troitsk, Moscow, 108840

E. Eroshenko

Pushkov Institute of Terrestrial Magnetism, Ionosphere and Radio Wave Propagation

Email: abelov@izmiran.ru
Rússia, Kaluzhskoe shosse 4, Troitsk, Moscow, 108840

V. Oleneva

Pushkov Institute of Terrestrial Magnetism, Ionosphere and Radio Wave Propagation

Email: abelov@izmiran.ru
Rússia, Kaluzhskoe shosse 4, Troitsk, Moscow, 108840

V. Yanke

Pushkov Institute of Terrestrial Magnetism, Ionosphere and Radio Wave Propagation

Email: abelov@izmiran.ru
Rússia, Kaluzhskoe shosse 4, Troitsk, Moscow, 108840

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