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Titolo:
MEASUREMENT OF ANOMALOUS COSMIC-RAY OXYGEN AT HELIOLATITUDES SIMILAR-TO-25-DEGREES TO SIMILAR-TO-64-DEGREES
Autore:
LANZEROTTI LJ; MACLENNAN CG; GOLD RE; ARMSTRONG TP; ROELOF EC; KRIMIGIS SM; SIMNETT GM; SARRIS ET; ANDERSON KA; PICK M; LIN RP;
Indirizzi:
AT&T BELL LABS MURRAY HILL NJ 07974 JOHNS HOPKINS UNIV,APPL PHYS LAB BALTIMORE MD 21218 UNIV KANSAS,DEPT PHYS LAWRENCE KS 66045 UNIV BIRMINGHAM BIRMINGHAM B15 2TT W MIDLANDS ENGLAND UNIV THRACE XANTHI GREECE UNIV CALIF BERKELEY,SPACE SCI LAB BERKELEY CA 94720 OBSERV PARIS F-92190 MEUDON FRANCE
Titolo Testata:
Geophysical research letters
fascicolo: 4, volume: 22, anno: 1995,
pagine: 333 - 336
SICI:
0094-8276(1995)22:4<333:MOACOA>2.0.ZU;2-E
Fonte:
ISI
Lingua:
ENG
Soggetto:
SOLAR-WIND; SPECTRA; ACCELERATION; HELIOSPHERE; GRADIENTS; ULYSSES; SHOCK;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
28
Recensione:
Indirizzi per estratti:
Citazione:
L.J. Lanzerotti et al., "MEASUREMENT OF ANOMALOUS COSMIC-RAY OXYGEN AT HELIOLATITUDES SIMILAR-TO-25-DEGREES TO SIMILAR-TO-64-DEGREES", Geophysical research letters, 22(4), 1995, pp. 333-336

Abstract

We report measurements of the oxygen component (0.5 - 22 MeV/nucl) ofthe interplanetary cosmic ray flux as a function of heliolatitude. The measurements reported here were made with the Wart telescope of the HI-SCALE low energy particle instrument on the Ulysses spacecraft as the spacecraft climbed from approximately 24-degrees to approximately 64-degrees south solar heliolatitude during 1993 and early 1994. As a function of heliolatitude, the O abundance at 2-2.8 MeV/nucl drops sharply at latitudes above the heliospheric current sheet. The oxygen spectrum obtained above the current sheet has a broad peak centered at an energy of approximately 2.5 MeV/nucl that is the anomalous O componentat these latitudes. There is little evidence for a latitude dependence in the anomalous O fluxes as measured above the current sheet. Within the heliospheric current sheet, the O measurements are composed of both solar and anomalous origin particles.

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Documento generato il 26/11/20 alle ore 20:07:43