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Titolo:
Energetic proton observations at 1 and 5 AU 2. Rising phase of the solar cycle 23
Autore:
Lario, D; Marsden, RG; Sanderson, TR; Maksimovic, M; Sanahuja, B; Plunkett, SP; Balogh, A; Forsyth, RJ; Lin, RP; Gosling, JT;
Indirizzi:
Johns Hopkins Univ, Appl Phys Lab, Laurel, MD 20723 USA Johns Hopkins Univ Laurel MD USA 20723 ppl Phys Lab, Laurel, MD 20723 USA Univ Barcelona, Dept Astron & Meteorol, Barcelona, Spain Univ Barcelona Barcelona Spain Dept Astron & Meteorol, Barcelona, Spain Inst Estudis Espacials Catalunya, Barcelona, Spain Inst Estudis Espacials Catalunya Barcelona Spain unya, Barcelona, Spain Univ Space Res Assoc, Naval Res Lab, Washington, DC USA Univ Space Res Assoc Washington DC USA Naval Res Lab, Washington, DC USA Imperial Coll Sci & Technol, Blackett Lab, London, England Imperial Coll Sci & Technol London England lackett Lab, London, England Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA Univ Calif Berkeley Berkeley CA USA 94720 Sci Lab, Berkeley, CA 94720 USA Univ Calif Los Alamos Natl Lab, Los Alamos, NM 87545 USA Univ Calif Los Alamos Natl Lab Los Alamos NM USA 87545 amos, NM 87545 USA European Space Agcy, Estec, Dept Space Sci, NL-2200 AG Noordwijk, Netherlands European Space Agcy Noordwijk Netherlands NL-2200 AG rdwijk, Netherlands
Titolo Testata:
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
fascicolo: A8, volume: 105, anno: 2000,
pagine: 18251 - 18274
SICI:
0148-0227(20000801)105:A8<18251:EPOA1A>2.0.ZU;2-B
Fonte:
ISI
Lingua:
ENG
Soggetto:
CORONAL MASS EJECTION; PARTICLE EVENTS; INTERPLANETARY SHOCKS; DRIVEN SHOCKS; COSMIC-RAYS; ULYSSES; WIND; FLARES; PROPAGATION; SPACECRAFT;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
45
Recensione:
Indirizzi per estratti:
Indirizzo: Lario, D Johns Hopkins Univ, Appl Phys Lab, Johns Hopkins Rd, Laurel, MD 20723 USA Johns Hopkins Univ Johns Hopkins Rd Laurel MD USA 20723 20723 USA
Citazione:
D. Lario et al., "Energetic proton observations at 1 and 5 AU 2. Rising phase of the solar cycle 23", J GEO R-S P, 105(A8), 2000, pp. 18251-18274

Abstract

The increasing level of solar activity at the end of 1997 coincides with the observation of solar energetic particle (SEP) events by the Wind and Ulysses spacecraft. The proximity of Ulysses to the ecliptic plane during thisperiod allows us to study the effects of the solar activity at two different heliolongitudinal and heliocentric distances but at similar heliolatitudes. We identify the main transient proton enhancements seen by Wind and Ulysses from October 1997 to the end of December 1998, We compare their characteristics and suggest an interpretation in terms of their heliospheric location, the activity occurring at the Sun, and the conditions for particle propagation between the Sun and both spacecraft. Whereas at 1 RU different SEP events can be associated with individual coronal mass ejections (CMEs), at 5 AU long-lasting SEP events are observed while a sequence of CMEs takes place at the Sun, Continuous injection of particles from traveling CME-driven shocks, the effects of particle propagation along interplanetary magnetic field lines, acid the corotation of these field lines across the Ulysses location are the main factors responsible for these long-lasting periods ofhigh particle intensity observed by Ulysses.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 20/09/20 alle ore 06:56:33