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Long-Term Collisional Evolution of Debris Disks
IR surveys indicate that the dust content in debris disks gradually declines with stellar age. We simulated the long-term collisional depletion of debris disks around solar-type (G2 V) stars with our…
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Dust distributions in debris disks: effects of gravity, radiation pressure and collisions
We model a typical debris disk, treated as an idealized ensemble of dust particles, exposed to stellar gravity and direct radiation pressure and experiencing fragmenting collisions. Applying the…
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Impact-generated dust clouds around planetary satellites: spherically symmetric case
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A possible architecture of the planetary system HR 8799
HR 8799 is a nearby A-type star with a debris disk and three planetary candidates, which have been imaged directly. We undertake a coherent analysis of various observational data for all known…
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The Cassini Cosmic Dust Analyzer
The Cassini-Huygens Cosmic Dust Analyzer (CDA) 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 and saturnian…
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Circumplanetary Dust Dynamics: Effects of Solar Gravity, Radiation Pressure, Planetary Oblateness, and Electromagnetism
Abstract We consider the motions of circumplanetary objects perturbed simultaneously by solar gravity, radiation pressure, planetary oblateness, and electromagnetic forces. Confining ourselves to the…
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ORBITAL EVOLUTION OF HIGH-ALTITUDE BALLOON SATELLITES
Abstract. We investigate the motion of artificial satellites withlarge area-to-mass ratios in high-altitude low inclined orbits,perturbedsimultaneouslybysolarradiationpressureandEarth’soblateness. Our…
An improved model of the Edgeworth-Kuiper debris disk
In contrast to all other debris disks, where the dust can be seen via an infrared excess over the stellar photosphere, the dust emission of the Edgeworth-Kuiper belt (EKB) eludes remote detection…
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THE DEBRIS DISK OF VEGA: A STEADY-STATE COLLISIONAL CASCADE, NATURALLY
The archetypical debris disk around Vega has been observed intensively over the past 25 years. It has been argued that the resulting photometric data and images may be in contradiction with a…
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Impact-generated dust clouds surrounding the Galilean moons
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