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Results from the corrected hubble space telescope

Kinney, A. L.

Findings from the refurbished Hubble Space Telescope are presented, including imaging of asymmetrical circumstellar material around pre-main sequence stars in the Orion Nebula, discovery of a triple ring system in the supernova remnant 1987a, and the measurement of high velocity in the central region of the nucleus of the active galaxy M87 which p…

The Hot Stars in Symbiotic Systems

Muerset, Urs

Symbiotic stars are interacting binaries, consisting of a late giant and a very hot companion, whose radiation ionizes the wind from the cool star. They strike the observers by their complex spectra and variability. A small subgroup, the symbiotic novae, undergo outbursts with an amplitude of several magnitudes and a duration of several decades. T…

Magnetic fields in the high latitude heliosphere

Balogh, A.

Observations of diffuse interstellar bands and of interstellar polarization

Somerville, W. B.

Results are presented from two distinct observational projects, concerning the optical diffuse interstellar bands observed with high-resolution and ultra-high resolution spectroscopy. and UV interstellar polarization observed with the Hubble Space Telescope.

The Hipparcos astrometric satellite and visual double stars.

Pannunzio, R.

Astrometry from the Earth is described in this paper with particular attention to the evolution of the observational techniques from the last century to date and to the consequent improvement of results obtained by continually improved techniques. The mission's expected results are considered and the astrometric goals concerning the double and mul…

Magnetic effect due to hypervelocity dust particle impact on the Giotto spacecraft

Neubauer, F. M.; Israelevich, P. L.; Ershkovich, A. I. +1 more

Magnetic field disturbance accompanying dust particle impacts is explained by means of the creation of a secondary cloud around the Giotto spacecraft. The enhancement of the magnetic field is seen as a result of the deceleration of electrons in the cometary plasma flow due to collisions with neutral atoms of the cloud surrounding the spacecraft. A…

Cosmic Ray Modulation by Expanding, High-Latitudes Streams

Fränz, M.; Keppler, E.; Quenby, J. J. +4 more

Statistical Studies of the Pressure of Interstellar Pick-up Ions: Implications for the Outer Heliosphere

Geiss, J.; Schwadron, N. A.; Gloeckler, G. +1 more

An Overview on Measurements in High Heliographic Latitudes: Results from EPAC on ULYSSES

Fränz, M.; Keppler, E.; Blake, B. +2 more

Ulysses Redial and Latitudinal Gradients: Low Energy Proton Flux Measurements

Anglin, J. D.; Venkatesan, D.; Ananth, A. G.