Interplanetary-proton (0. 61 < ep < 3. 41 MeV) events observed with Pioneer 11, 1973-86 and out to 22. 4 AU. Progress report

Technical Report · Thu Jan 01 00:00:00 EST 1987

OSTI ID:6920988

Van Allen, J A

A survey of interplanetary-proton events (0.61 to 3.41 MeV) is summarized in graphical and tabular form for the period April 1973-December 1986. The observations were obtained by an effectively continuous data stream from the University of Iowa instrument on the Ames Research Center/NASA spacecraft Pioneer 11 as it moved outward in the solar system from 1.0 to 22.4 AU. Two hundred and sixty-five distinct events are identified. The spectra and intensities of the protons, presumed to be originally of solar origin, are influenced dramatically by propagative and accelerative processes in the interplanetary medium.

• Research Organization: Iowa Univ., Iowa City (USA)
• OSTI ID: 6920988
• Report Number(s): AD-A-194325/7/XAB
• Resource Relation: Other Information: Pub. in Solar Physics, Vol. 112, 165-179(1987)
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
INTERPLANETARY SPACE
SOLAR PROTONS
ENERGY SPECTRA
ACCELERATION
PROGRESS REPORT
SOLAR CYCLE
SOLAR SYSTEM
SUNSPOTS
BARYONS
DOCUMENT TYPES
ELEMENTARY PARTICLES
FERMIONS
HADRONS
NUCLEONS
PROTONS
RADIATIONS
SOLAR ACTIVITY
SOLAR PARTICLES
SOLAR RADIATION
SPACE
SPECTRA
STARSPOTS
STELLAR ACTIVITY
STELLAR RADIATION
640104* - Astrophysics &amp; Cosmology- Solar Phenomena
640107 - Astrophysics &amp; Cosmology- Planetary Phenomena