Possible ground-level measurements of solar neutron decay protons during the 19 October 1989 solar cosmic ray event

Journal Article · Wed May 01 00:00:00 EDT 1991 · Geophysical Research Letters (American Geophysical Union); (United States)

OSTI ID:5183512

Flueckiger, E O ^[1]; Shea, M A; Smart, D F; Wilson, M D

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1. Univ. of Bern (Switzerland)

The high energy solar proton event of 19 October 1989 had an atypical particle anisotropy during the initial phase with the Deep River, Ottawa and Goose Bay neutron monitors in the Eastern Canadian region recording the intensity increase about 25 minutes before comparable detectors in Europe and Western Canada. Using the asymptotic cones of acceptance for these neutron monitors, the authors show that this early onset in the particle intensity increase may be the detection of relativistic protons that are the decay product of solar flare generated relativistic neutrons.

• OSTI ID: 5183512
• Journal Information: Geophysical Research Letters (American Geophysical Union); (United States), Vol. 18:5; ISSN 0094-8276
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
SOLAR FLARES
SOLAR NEUTRONS
PARTICLE DECAY
SOLAR PROTONS
DETECTION
ANISOTROPY
DATA
NEUTRON MONITORS
RELATIVISTIC RANGE
BARYONS
DECAY
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
HADRONS
INFORMATION
MEASURING INSTRUMENTS
MONITORS
NEUTRONS
NUCLEONS
PROTONS
RADIATION MONITORS
RADIATIONS
SOLAR ACTIVITY
SOLAR PARTICLES
SOLAR RADIATION
STELLAR RADIATION
640104* - Astrophysics & Cosmology- Solar Phenomena