Observational confirmation of a circumsolar dust ring by the COBE satellite
Article Abstract:
The dust particles originating from asteroid collisions spiral toward the sun due to the drag forces and during this movement through the inner Solar System they are attracted by the planets into orbital resonances by gravitational pull. The Diffuse Infrared Background Experiment on the Cosmic Background Explorer satellite verifies the presence of a circumsolar dust ring around the Earth. The asymmetric ring structure possesses a denser region trailing the Earth than in the leading direction.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1995
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Re-entry and ablation of cometary dust in the impact plumes of Shoemaker-Levy 9
Article Abstract:
Optical spectra of the collision of fragments L and Q1 with Jupiter during the impact of comet Shoemaker-Levy 9 have been analyzed. Results showed emission lines form sodium, magnesium, calcium, iron, manganese and chromium as the ejecta plumes plunged back onto Jupiter's atmosphere. The first phase of emission was related to the heating of the falling impact ejecta, while a second phase of emission was related to silicate dust grains that condensed within the cooling comet.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1996
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A mysterious dust clump in a disk around an evolved binary star system
Article Abstract:
The Red Rectangle is a bright infrared source showing a bipolar optical nebulosity, illuminated by the A-type evolved star HD44179. Evolved stars have gravitationally bound orbiting dust disks. High-angular-resolution observations at millimetre and submillimetre wavelengths of a dusk disk linked to the Red Rectangle, are reported. A dust clump was found that is larger that our solar system.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1998
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