Publications
215 results found
BURTON ME, SMITH EJ, GOLDSTEIN BE, et al., 1992, ULYSSES - INTERPLANETARY SHOCKS BETWEEN 1-AU AND 4-AU, GEOPHYSICAL RESEARCH LETTERS, Vol: 19, Pages: 1287-1289, ISSN: 0094-8276
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- Citations: 30
Lanzerotti LJ, Maclennan CG, Gold RE, et al., 1992, Solar particle composition: Measurements in the March 1991 event at 2.5AU, Geophysical Research Letters, Vol: 19, Pages: 1251-1254, ISSN: 0094-8276
The time evolution of the very large solar particle event occurring on days 82–90 (March 23–31), 1991, as measured at 2.5 AU by the instrumentation on the Ulysses spacecraft was quite complex. Measurements by the HI‐SCALE instrument of the nuclear composition (emphasizing Z≥6) of the interplanetary particles at a time resolution of two hours provides information on the different interplanetary regions which swept over the spacecraft. The Fe/O abundance ratio is found to differ slightly in the regions before and after two tangential discontinuities. The Fe/O abundance ratio is also found to depend strongly on the energy/nucleon of the particle, with values of ∼0.7 for energies of ∼0.5–1.0 MeV/nucl. to values of∼0.2 for energies ∼8–16 MeV/nucl. Copyright 1992 by the American Geophysical Union.
BALOGH A, BEEK TJ, FORSYTH RJ, et al., 1992, THE MAGNETIC-FIELD INVESTIGATION ON THE ULYSSES MISSION - INSTRUMENTATION AND PRELIMINARY SCIENTIFIC RESULTS, ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES, Vol: 92, Pages: 221-236, ISSN: 0365-0138
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- Citations: 392
Wraight PC, Forsyth RJ, 1988, A multi-channel spectrometer for airglow observations, Planetary and Space Science, Vol: 36, Pages: 1269-1283, ISSN: 0032-0633
An account is given of the design, construction, and performance of a six channel spectrometer using tilting interference filters. Spectra of resolution of approximately 2 nm and extending over a range of about 15 nm are obtained once every 2 min at each of six wavelength regions in the visible and near infrared, and are recorded digitally for subsequent analysis. Examples are given of data obtained between 1981 and 1984 showing how the variation of intensities of atomic and molecular emissions and of the temperature deduced from the OH bands can be displayed. © 1988.
Forsyth RJ, Wraight PC, 1987, A survey of research on nightglow variability, Planetary and Space Science, Vol: 35, Pages: 1449-1461, ISSN: 0032-0633
The literature from 1970 to 1987 on nightglow variability, particularly from the mesosphere and lower thermosphere, is surveyed and classified. Earlier work is referenced via reviews. The work is classified both in terms of its coverage of short period, diurnal and long term variations, and also by the observational methods used. © 1987.
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