Interplanetary magnetic fields, their fluctuations, and cosmic ray variations

Technical Report · Tue Apr 01 04:00:00 EDT 1975

OSTI ID:7245473

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 (Dec. 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. (auth)

• Research Organization: National Aeronautics and Space Administration, Greenbelt, Md. (USA). Goddard Space Flight Center
• OSTI ID: 7245473
• Report Number(s): N-75-23443; NASA-TM-X-70881 X-692-75-85
• Country of Publication: United States
• Language: English

Related Subjects

640101* -- Astrophysics & Cosmology-- Cosmic Radiation
640107 -- Astrophysics & Cosmology-- Planetary Phenomena
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BARYONS
CORRELATIONS
COSMIC NEUTRONS
COSMIC RADIATION
ELEMENTARY PARTICLES
FERMIONS
FLUCTUATIONS
FORBUSH DECREASE
HADRONS
INTERPLANETARY SPACE
IONIZING RADIATIONS
MAGNETIC FIELDS
NEUTRONS
NUCLEONS
RADIATIONS
SPACE
VARIATIONS