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High Resolution Measurements of the Isotopic Composition of Galactic Cosmic Ray C, N, O, Ne, Mg and Si from the Ulysses HET
Connell, J.
Observations of Energetic Ions During the Ulysses Mission
Sanderson, T. R.
The Ulysses spacecraft was launched in October 1990, and, having completed its prime mission to overfly the south and north polar regions of the Sun, has now started on its second solar orbit. We review here energetic ion observations from the many regions encountered during the out-of-ecliptic phase of the mission: the low latitude traversal of t…
Solar origin of the 26-day periodicity observed by Ulysses
Weber, M.; Hoeksema, J. T.; Acton, L. W. +1 more
The Ulysses spacecraft discovered that the interplanetary magnetic sector structure went through a major restructuring in mid-1992. The observed recurrence period changed from about 25.4 days to about 26.2 days. Another interesting discovery is that the solar wind speed, energetic particle fluxes, and interplanetary magnetic field all varied quasi…
Giantic Roundchroms of Binary Systems SX CAS and 22 VUL
Gurzadyan, G. A.
The IUE observations do not favor the chromospheric origin of typical chromospheric emission lines, of the doublet 2800 MgII first of all, in close binary systems SX Cas and 22 Vul, both with a cool giant-supergiant as primary, and a hot B7–B8 star as secondary. Here, it is shown that the concept of common chromospheres – roundchroms can explain t…
Energetic particle anisotropies and remote magnetic connection at high solar latitudes
Fränz, M.; Keppler, E.; Burgess, D. +2 more
A very stable pattern of energetic particle events recurring with the solar rotation period dominates the Ulysses high latitude energetic particle observations during the current solar minimum. Most of these events can be associated with reverse shocks of corotating interaction regions (CIRs) but at latitudes above 50 deg there are either no shock…
HIPPARCOS Astrometry of Infrared-Selected Sources and the Connection Between Optical and Infrared Reference Frames
Sutton, E.
Astrometric data from the Hipparcos satellite are reported for the optical counterparts of 87 bright infrared sources. These sources may be useful in defining a reference frame for infrared observations. The data are also useful in studying the locations of circumstellar SiO masers. (SECTION: Stars)
Characteristics of Solar Type II Kilometer-Wave Radio Bursts
Hoang, S.; Zlobec, P.
In the spectral observations obtained at kilometric wavelengths by the instruments on Ulysses spacecraft solar low drift bursts were detected. Some of their characteristic parameters as well as similitudes and differences in respect to type II bursts observed at higher frequencies are considered.
Pick-up ions and associated wave energy transport at comet P/Halley: A case study
Neubauer, Fritz M.; Glassmeier, Karl-Heinz; Söding, Anne +1 more
During the flyby of the spacecraft Giotto at comet p/Halley Poynting vectors and Elsässer variables have been determined to study wave propagation directions. The observed wave properties are compared with the theoretically predicted RH-, LH+ and LH- wave modes. Between 10:36 and 19:11 SCET on March 13, 1986 the pr…
Isophot Observations Of Comet Hale-Bopp
Lemke, D.; Leinert, Ch.; Heinrichsen, I. +11 more
Comet Hale-Bopp has been observed five times with ISOPHOT, the photometer on board the Infrared Space Observatory (ISO), four times before its perihelion passage at heliocentric distances of 4.92, 4.58, 2.93 and 2.81 AU, and at 3.91 AU postperihelion. Each time, multi-filter photometry covering the range between 3.6–175 µm with eight to ten …
Interplanetary variability in particle fluxes recorded by the low energy charged particle detector lion (40 KEV-6 MEV) on the soho spacecraft during its cruise phase to the L1 point
Kunow, H.; Muller-Mellin, R.; McKenna-Lawlor, Susan M. P. +6 more
Representative types of energetic particle phenomena recorded by the LION instrument on SOHO during its Transfer Phase to, and while in early Halo Orbit about, the L1 Lagrangian Point are presented. The data cover the period from 7 December 1995 (instrument switch on) until 9/10 July 1996 (when a particle event associated with the first Class X fl…