Protons in near earth orbit

Preprint

18 February 2000

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.hep-ex/0002049

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 380 km. 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 ~ 70 m^-2 sec^-1 sr^-1. Most of these second spectrum protons follow a complicated trajectory and originate from a restricted geographic region.

Keywords

GEOMAGNETIC CUTOFF
SPECTRUM PROTONS
SECOND SPECTRUM
ENERGY RANGE
EARTH ORBIT
KINETIC

All Related Versions

Version 1, 2000-02-18, ArXiv
Published version: Physics Letters B, 472 (1-2), 215.

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