Pitch angle distributions of energetic protons near the earth's bow shock

Journal Article · Sat Sep 01 04:00:00 EDT 1979 · Geophys. Res. Lett.; (United States)

DOI:https://doi.org/10.1029/GL006i009p00707· OSTI ID:5773237

Scholer, M; Klecker, B; Hovestadt, D; Gloeckler, G; Ipavich, F M

Measurements of energetic protons between approx.28 and approx.145 keV on ISEE-1 upstream and downstream of the earth's bow shock during times of a radial interplanetary magnetic field are presented. The protons exhibited a slight anti-sunward flow in the spacecraft system in front of the bow shock and a strong flow along the magnetic field in the spacecraft system in the magnetosheath. Compton-Getting transformations of these anisotropies into the plasma frame of reference have been performed. It is argued that the observations can be explained best in terms of particle acceleration by multiple reflection between the bow shock and upstream scattering centers.

• Research Organization: Max-Planck-Institut fuer Physik und Astrophysik, Institut fuer extraterrestrische Physik, 8046 Garching, FRG
• OSTI ID: 5773237
• Journal Information: Geophys. Res. Lett.; (United States), Journal Name: Geophys. Res. Lett.; (United States) Vol. 6:9; ISSN GPRLA
• Country of Publication: United States
• Language: English

Related Subjects

640203* -- Atmospheric Physics-- Magnetospheric Phenomena-- (-1987)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ACCELERATION
ANGULAR DISTRIBUTION
BARYONS
DISTRIBUTION
EARTH ATMOSPHERE
ELEMENTARY PARTICLES
FERMIONS
HADRONS
INTERPLANETARY MAGNETIC FIELDS
MAGNETIC FIELDS
MAGNETOSHEATH
MAGNETOSPHERE
MULTIPLE SCATTERING
NUCLEONS
PLASMA ACCELERATION
PROTONS
SCATTERING