Interplanetary magnetic fields, their fluctuations, and cosmic ray variations

Journal Article · Mon Mar 01 04:00:00 EST 1976 · J. Geophys. Res.; (United States)

DOI:https://doi.org/10.1029/JA081i007p01453· OSTI ID:7285885

Barouch, E; Sari, J W

The cause of Forbush decreases is examined by using neutron monitor data and measurements of the interplanetary magnetic field. It is found that for the period examined (December 15, 1965, to April 23, 1966), large enhancements of the interplanetary magnetic field correlate well with decreases in cosmic ray intensity, while various parameters connected with the fluctuations in the field do not display such good correlation. The inference is drawn that Forbush decreases are not related to the turbulence or random motions in the field but to the large-scale features of the field. (AIP)

• Research Organization: NASA Goddard Space Flight Center, Greenbelt, Maryland 20771
• OSTI ID: 7285885
• Journal Information: J. Geophys. Res.; (United States), Journal Name: J. Geophys. Res.; (United States) Vol. 81:7; ISSN JGREA
• Country of Publication: United States
• Language: English

Related Subjects

640101* -- Astrophysics & Cosmology-- Cosmic Radiation
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COSMIC RADIATION
COSMIC RAY PROPAGATION
FLUCTUATIONS
FORBUSH DECREASE
INTERPLANETARY MAGNETIC FIELDS
INTERPLANETARY SPACE
IONIZING RADIATIONS
MAGNETIC FIELDS
PIONEER SPACE PROBES
PRIMARY COSMIC RADIATION
RADIATIONS
SOLAR ACTIVITY
SOLAR WIND
SPACE
SPACE VEHICLES
VARIATIONS