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UV and X-ray emission in the interacting binary U Cephei.
Gonzalez-Riestra, R.; Guinan, E. F.; Gimenez, A.
The active close binary U Cep has been monitored in the ultraviolet, using IUE, during 1.25 orbital cycles. The emission spectrum at the bottom of the primary total eclipse confirms earlier suggestions of an unexpected absence of the Hell 1640 A line. Stronger than expected emission in some other lines like NV, CII, CIV or AlIII, indicative of hot…
The ULYSSES solar wind plasma experiment
McComas, D. J.; Goldstein, B. E.; Bame, S. J. +5 more
The scientific objectives of the Ulysses solar wind plasma experiment, termed the Solar Wind Observations Over the Poles of the Sun (SWOOPS) include measurements of the solar-wind global properties, the nonlinear MHD disturbances in the solar wind, the internal state of the solar wind plasma, and the solar-wind interaction with Jupiter's magnetic …
The magnetic field investigation on the ULYSSES mission - Instrumentation and preliminary scientific results
Balogh, A.; Tsurutani, B. T.; Forsyth, R. J. +5 more
A fundamental feature of the heliosphere is the three-dimensional structure of the interplanetary magnetic field. The magnetic field investigation on Ulysses, the first space probe to explore the out-of-ecliptic and polar heliosphere, aims at determining the large-scale features and gradients of the field, as well as the heliolatitude dependence o…
The Solar Wind Ion Composition Spectrometer
Livi, S.; Balsiger, H.; Geiss, J. +21 more
The Solar Wind Ion Composition Spectrometer (SWICS) on Ulysses is designed to determine uniquely the elemental and ionic-charge composition, and the temperatures and mean speeds of all major solar-wind ions, from H through Fe, at solar wind speeds ranging from 175 km/s (protons) to 1280 km/s (Fe(8+)). The instrument, which covers an energy per cha…
The ULYSSES Cosmic Ray and Solar Particle Investigation
Balogh, A.; Sierks, H.; Kunow, H. +28 more
The Ulysses experimental program termed Cosmic Ray and Solar Particle Investigation (COSPIN) is described, with special attention given to the scientific objectives of the COSPIN, the measurements performed, the initial postlaunch results, and the characteristics of the individual COSPIN instruments. The instrument package of the COSPIN experiment…
The ULYSSES Mission
Smith, E. J.; Marsden, R. G.; Page, D. E. +1 more
The Unified Radio and Plasma wave investigation
de Conchy, Y.; Goetz, K.; Desch, M. D. +7 more
The scientific objectives of the Ulysses Unified Radio and Plasma wave (URAP) experiment are twofold: (1) the determination of the direction, angular size, and polarization of radio sources for remote sensing of the heliosphere and the Jovian magnetosphere and (2) the detailed study of local wave phenomena, which determine the transport coefficien…
Heliosphere Instrument for Spectra, Composition and Anisotropy at Low Energies
Simnett, G. M.; Pick, M.; Anderson, K. A. +7 more
The Heliosphere Instrument for Spectra, Composition, and Anisotropy at Low Energies (HI-SCALE) is designed to make measurements of interplanetary ions and electrons throughout the entire Ulysses mission. The ions (E(i) greater than about 50 keV) and electrons (E(e) greater than about 30 keV) are identified uniquely and detected by five separate so…
The ULYSSES dust experiment
Kissel, J.; Morfill, G. E.; Gruen, E. +7 more
The Ulysses dust experiment is intended to provide direct observations of dust grains with masses between 10 exp -16 g and 10 exp -6 g in interplanetary space, to investigate their physical and dynamical properties as functions of heliocentric distance and ecliptic latitude. Of special interest is the question of what portion is provided by comets…
The solar X-ray/cosmic gamma-ray burst experiment aboard ULYSSES
Cline, T.; Hurley, K.; Sommer, M. +7 more
The scientific objectives of the Ulysses solar X-ray/cosmic gamma-ray burst experiment, and the unique features of the Ulysses mission which will help to achieve them are described. After a discussion of the special design constraints imposed by the mission, the sensor systems, consisting of two CsI scintillators and two Si surface barrier detecto…