Solar wind magnetic field bending of Jovian dust trajectories.
← Research streamThe Ulysses cosmic dust detector recorded 11 short dust streams from the Jovian system whose trajectories were strongly affected by solar wind magnetic field forces. Analyses indicated dust grain masses on the order of 10^-18 g and velocities exceeding 200 km…
Study snapshot
Abstract
From September 1991 to October 1992, the cosmic dust detector on the Ulysses spacecraft recorded 11 short bursts, or streams, of dust. These dust grains emanated from the jovian system, and their trajectories were strongly affected by solar wind magnetic field forces. Analyses of the on-board measurements of these fields, and of stream approach directions, show that stream-associated dust grain masses are of the order of 10(-18) gram and dust grain velocities exceed 200 kilometers per second. These masses and velocities are, respectively, about 10(3) times less massive and 5 to 10 times faster than earlier reported.
AI evidence extraction
Structured fields below were generated from the paper’s abstract and metadata to make the evidence easier to inspect. Automated extraction may be incomplete or incorrect; verify important details against the original paper.
Main findings
The Ulysses cosmic dust detector recorded 11 short dust streams from the Jovian system whose trajectories were strongly affected by solar wind magnetic field forces. Analyses indicated dust grain masses on the order of 10^-18 g and velocities exceeding 200 km/s, reported as ~10^3 times less massive and 5–10 times faster than earlier reports.
Outcomes measured
- Dust stream detection on Ulysses spacecraft
- Dust grain trajectory bending by solar wind magnetic field forces
- Estimated dust grain mass
- Estimated dust grain velocity
- Stream approach directions
View raw extracted JSON
{
"study_type": "other",
"exposure": {
"band": null,
"source": null,
"frequency_mhz": null,
"sar_wkg": null,
"duration": "September 1991 to October 1992"
},
"population": null,
"sample_size": 11,
"outcomes": [
"Dust stream detection on Ulysses spacecraft",
"Dust grain trajectory bending by solar wind magnetic field forces",
"Estimated dust grain mass",
"Estimated dust grain velocity",
"Stream approach directions"
],
"main_findings": "The Ulysses cosmic dust detector recorded 11 short dust streams from the Jovian system whose trajectories were strongly affected by solar wind magnetic field forces. Analyses indicated dust grain masses on the order of 10^-18 g and velocities exceeding 200 km/s, reported as ~10^3 times less massive and 5–10 times faster than earlier reports.",
"effect_direction": "unclear",
"limitations": [],
"evidence_strength": "insufficient",
"confidence": 0.74,
"peer_reviewed_likely": "yes",
"keywords": [
"Ulysses spacecraft",
"cosmic dust detector",
"Jovian system",
"dust streams",
"solar wind",
"magnetic field forces",
"dust grain mass",
"dust grain velocity"
],
"suggested_hubs": []
}AI-extracted fields are generated from the abstract and metadata and may be incomplete or incorrect. This material is for informational purposes and is not medical advice.
Identifiers and source
DOI: 10.1126/science.274.5292.1501
PubMed: 8929405