Open AccessEnergetic particle investigation using the ERNE instrument
Author(s) -
J. Torsti,
Э. Валтонен,
L. G. Kocharov,
M. Lumme,
T. Eronen,
M. Louhola,
E. Riihonen,
G. Schultz,
M. Teittinen,
Rami Vainio,
Anu-Hanna Anttila,
J. Kuusela
Publication year - 1996
Publication title -
annales geophysicae
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.522
H-Index - 93
eISSN - 1432-0576
pISSN - 0992-7689
DOI - 10.1007/s00585-996-0497-5
Subject(s) - solar energetic particles , physics , coronal mass ejection , interplanetary spaceflight , particle acceleration , solar flare , solar wind , particle (ecology) , interplanetary medium , computational physics , acceleration , electron , astrophysics , plasma , nuclear physics , classical mechanics , geology , oceanography
During solar flares and coronal massejections, nuclei and electrons accelerated to high energies are injected intointerplanetary space. These accelerated particles can be detected at the SOHOsatellite by the ERNE instrument. From the data produced by the instrument, itis possible to identify the particles and to calculate their energy anddirection of propagation. Depending on variable coronal/interplanetaryconditions, different kinds of effects on the energetic particle transport canbe predicted. The problems of interest include, for example, the effects ofparticle properties (mass, charge, energy, and propagation direction) on theparticle transport, the particle energy changes in the transport process, andthe effects the energetic particles have on the solar-wind plasma. The evolutionof the distribution function of the energetic particles can be measured withERNE to a better accuracy than ever before. This gives us the opportunity tocontribute significantly to the modeling of interplanetary transport andacceleration. Once the acceleration/transport bias has been removed, theacceleration-site abundance of elements and their isotopes can be studied indetail and compared with spectroscopic observations