Cosmic-ray gradient measurements and modulation beyond the inner solar wind termination shock

Journal Article · Sat Dec 01 04:00:00 EST 1990 · Astrophysical Journal; (USA)

DOI:https://doi.org/10.1086/169491· OSTI ID:6105745

Quenby, J J; Lockwood, J A; Webber, W R ^[1]

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1. Imperial College of Science, Technology, and Medicine, London (England) New Hampshire Univ., Durham (USA)

Data provided by the IMP, Voyager, and Pioneer spacecraft for the cosmic-ray particles with E greater than 60 MeV show the existence of integral radial cosmic-ray-density gradients which were nearly constant from 1977 to 1982. In this paper, these measurements are explained using a model in which significant modulation occurs in the turbulent shocked plasma flow between the inner solar wind termination and the outer contact discontinuity separating the interstellar medium flow from the heliospheric plasma. 54 refs.

• OSTI ID: 6105745
• Journal Information: Astrophysical Journal; (USA), Journal Name: Astrophysical Journal; (USA) Vol. 365; ISSN ASJOA; ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

640101* -- Astrophysics & Cosmology-- Cosmic Radiation
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ATMOSPHERES
COSMIC RADIATION
ENERGY RANGE
HELIOSPHERE
INTERSTELLAR SPACE
IONIZING RADIATIONS
MATHEMATICAL MODELS
MEV RANGE
MEV RANGE 10-100
MODULATION
PIONEER SPACE PROBES
PLASMA
RADIATIONS
SHOCK WAVES
SOLAR ACTIVITY
SOLAR ATMOSPHERE
SOLAR WIND
SPACE
SPACE VEHICLES
VEHICLES
VOYAGER SPACE PROBES
WAVE PROPAGATION