Discovery of Jovian dust streams and interstellar grains by the Ulysses spacecraft

  title={Discovery of Jovian dust streams and interstellar grains by the Ulysses spacecraft},
  author={Eberhard Gr{\"u}n and Herbert A. Zook and Michael Baguhl and Andr{\'e} Balogh and Samuel J. Bame and Hugo Fechtig and Robert J. Forsyth and Mark Manner and Mih{\'a}ly Hor{\'a}nyi and Jochen Kissel and Bertil Anders Lindblad and D. Linkert and G. Linkert and Ingrid Mann and John McDonnell and Gregor Eugen Morfill and John L. Phillips and Carol A. Polanskey and G. Schwehm and N. Siddique and P. Staubach and J. A. Svestka and A. D. Taylor},
ON 8 February 1992, the Ulysses spacecraft flew by Jupiter at a distance of 5.4 AU from the Sun. During the encounter, the spacecraft was deflected into a new orbit, inclined at about 80° to the ecliptic plane, which will ultimately lead Ulysses over the polar regions of the Sun1. Within 1 AU from Jupiter, the onboard dust detector2 recorded periodic bursts of submicrometre dust particles, with durations ranging from several hours to two days, and occurring at approximately monthly intervals… 

The flux of interstellar dust observed by Ulysses and Galileo

Interstellar dust detected by the dust sensor onboard Ulysses was first identified after the Jupiter flyby when the spacecraft's trajectory changed dramatically (Grün et al., 1994). Here we report on

Constraints from Galileo observations on the origin of jovian dust streams

THE Ulysses spacecraft detected streams of sub-micrometre-sized dust particles as it approached Jupiter in 19921,2. Although interplanetary space was known to contain dust, the presence of discrete

Ulysses jovian latitude scan of high-velocity dust streams originating from the jovian system

Ejection of dust from Jupiter's gossamer ring

ONE of the most intriguing discoveries of the Ulysses mission so far has been the detection of periodic, collimated streams of high-velocity, submicrometre-sized dust particles emanating from

Anticipation of the Ulysses Interstellar Dust findings

It has long been thought that dust particles making up the zodiacal cloud come predominantly from sources within the solar system such as short-period comets, asteroids, and Jupiter's moons. However,

Interstellar Dust in the Solar System

Abstract The Ulysses spacecraft has been orbiting the Sun on a highly inclined ellipse almost perpendicular to the ecliptic plane (inclination 79°, perihelion distance 1.3 AU, aphelion distance 5.4

Dust measurements during Ulysses' 2nd Jupiter encounter

In 2004 the Ulysses spacecraft had its second flyby at Jupiter at 0.8 AU from the planet. 28 dust streams emanating from the jovian system were identified over a 26-month period while the spacecraft

Jovian dust streams: Probes of the Io plasma torus

Jupiter was discovered to be a source of high speed dust particles by the Ulysses spacecraft in 1992. These dust particles originate from the volcanic plumes on Io. They collect electrostatic charges

High-velocity streams of dust originating from Saturn

All bursts of dust impacts detected within 150 Saturn radii are characterized by impact directions markedly different from those measured between the bursts, and they clearly coincide with the spacecraft's traversals through streams of compressed solar wind.



Ulysses dust measurements near Jupiter.

Dust flux measurements give evidence of the recent rates of production from sources such as comets, asteroids, and moons, as well as the possible presence of interstellar grains.

Galileo and Ulysses dust measurements: Fz Venus to Jupiter

The Galileo and Ulysses spaceprobes carry two similar dust detectors through interplanetary space from Venus to Jupiter. We report here on impacts which correspond to dust particles above a mass

The Galileo dust detector

The Galileo Dust Detector is intended to provide direct observations of dust grains with masses between 10-19 and 10-9 kg in interplanetary space and in the Jovian system, to investigate their

Low-frequency Jovian emission and solar wind magnetic sector structure

The Earth, Jupiter and Saturn emit non-thermal low-frequency radiations with similar characteristics. For the Earth and Saturn, the radio emissions are known to fluctuate with a time scale of several

Dust in Jupiter's magnetosphere - An Io source

The possibility of removing particles from Io by interactions with the Jovian magnetosphere has been investigated. It is found that dust grains of about 0.1 micron radius will rapidly become charged

The sun and the heliosphere in three dimensions : proceedings of the XIXth ESLAB symposium, held in Les Diablerets, Switzerland, 4-6 June 1985

Section I: The Corona.- Coronal Magnetic Fields - a Mini Survey.- Origins of the Solar Wind in the Corona.- The Heliospheric Energy Source.- Coronal Spectroscopy and Imaging from Spartan during the

Streaming of interstellar grains in the Solar System

Deep-space probes offer excellent opportunities to study interstellar grains streaming into the Solar System. Direct detection of such particles would considerably add to our knowledge in many areas