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Lanzerotti et al. 1995
Lanzerotti, L.J., Maclennan, C.G., Gold, R.E., Armstrong, T.P., Roelof, E.C., Krimigis, S.M., Simnett, G.M., Sarris, E.T., Anderson, K.A., Pick, M. and Lin, R.P. (1995). Measurement of anomalous cosmic ray oxygen at heliolatitudes ~25° to ~64°. Geophysical Research Letters 22: doi: 10.1029/94GL03210. issn: 0094-8276.

We report measurements of the oxygen component (0.5--22 MeV/nucl) of the 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 ~24¿ to ~64¿ 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 ~2.5 MeV/nucl that is the anomalous O component at 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. ¿ American Geophysical Union 1995

BACKGROUND DATA FILES

Abstract

Keywords
Interplanetary Physics, Cosmic rays, Interplanetary Physics, Heliopause and solar wind termination
Journal
Geophysical Research Letters
http://www.agu.org/journals/gl/
Publisher
American Geophysical Union
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