Inferring the interplanetary dust properties
نویسندگان
چکیده
منابع مشابه
Migration of interplanetary dust.
We numerically investigate the migration of dust particles with initial orbits close to those of the numbered asteroids, observed trans-Neptunian objects, and comet Encke. The fraction of silicate asteroidal particles that collided with the Earth during their lifetime varied from 11% for 100 micron particles to 0.008% for 1 micron particles. Almost all asteroidal particles with diameter d >/= 4...
متن کاملInterplanetary Dust Community
Imagine a box filled with particles from hundreds of thousands of small bodies throughout the solar system, including asteroids, comets, Trojans, Centaurs, KBOs and even from other stars. Each particle contains information about the object from which it came and the space environment through which it has traveled. Largely collected near the Earth’s orbit and on the Earth itself, this box of par...
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The recent discovery of ion tracks in interplanetary dust and the increasing evidence for carbon and carburized materials in these objects are strongly suggestive that chemical processing by energetic charged-particle bombardment has occurred during the dust lifetimes. The track density gives a measure of the total ion fluence experienced by the grains. We use this information and laboratory da...
متن کاملInferring Sources in the Interplanetary Dust Cloud, from Observations and Simulations of Zodiacal Light and Thermal Emission
Interplanetary dust particles physical properties may be approached through observations of the solar light they scatter, specially its polarization, and of their thermal emission. Results, at least near the ecliptic plane, on polarization phase curves and on the heliocentric dependence of the local spatial density, albedo, polarization and temperature are summarized. As far as interpretations ...
متن کاملObservations of interplanetary dust by the Juno magnetometer investigation
One of the Juno magnetometer investigation’s star cameras was configured to search for unidentified objects during Juno’s transit en route to Jupiter. This camera detects and registers luminous objects to magnitude 8. Objects persisting in more than five consecutive images and moving with an apparent angular rate of between 2 and 18,000 arcsec/s were recorded. Among the objects detected were a ...
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ژورنال
عنوان ژورنال: Astronomy & Astrophysics
سال: 2007
ISSN: 0004-6361,1432-0746
DOI: 10.1051/0004-6361:20077623