Velocity-anisotropy-driven bending instability in the galactic stellar disk
Journal
Chinese Journal of Physics
Journal Volume
38
Journal Issue
2-1
Pages
120-126
Date Issued
2000
Author(s)
Abstract
The proton spectrum in the kinetic energy range 0.1 to 200 GeV was measured by the Alpha Magnetic Spectrometer (AMS) during space shuttle flight STS-91 at an altitude of 380km. Above the geomagnetic cutoff the observed spectrum is parameterized by a power law. Below the geomagnetic cutoff a substantial second spectrum was observed concentrated at equatorial latitudes with a flux ~ 70m-2 s-1 sr-1. Most of these second spectrum protons follow a complicated trajectory and originate from a restricted geographic region. (C) 2000 Published by Elsevier Science B.V.
SDGs
Type
journal article