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Exo-Geoscience Perspectives Beyond Habitability. [PDF]
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Motion of the Interplanetary Dust Cloud
Nature, 1970THERE have recently been several attempts1–3 to observe the motion of the interplanetary dust cloud by measuring the Doppler shift of the Hβ Fraunhofer line in the spectrum of the zodiacal light. From the variation of the Doppler shift with elongation it is possible in principle4 to deduce the way in which the particle number density varies with ...
J F, James, M J, Smeethe
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Identification of molecular-cloud material in interplanetary dust particles
Nature, 2000Interplanetary dust particles (IDPs) collected in the Earth's stratosphere and meteorites are fragments of comets and asteroids. These are 'primitive' meteorites in part because they have preserved materials which predate the formation of the Solar System. The most primitive (least altered) meteorites contain a few parts per million of micrometre-sized
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The nature of molecular cloud material in interplanetary dust
Geochimica et Cosmochimica Acta, 2004Eight interplanetary dust particles (IDPs) exhibiting a wide range of H and N isotopic anomalies have been studied by transmission electron microscopy, x-ray absorption near-edge structure spectroscopy, and Fourier-transform infrared spectroscopy. These anomalies are believed to have originated during chemical reactions in a cold molecular cloud that ...
Lindsay P. Keller +5 more
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The motion of charged dust particles in interplanetary space—I. The zodiacal dust cloud
Planetary and Space Science, 1979Abstract The problem of electromagnetic perturbations of charged dust particle orbits in interplanetary space has been re-examined in the light of our better understanding of the large scale spatial and temporal interplanetary plasma and field topology.
G.E. Morfill, E. Grün
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Nature, 1992
IF the current abundance of interplanetary dust is representative of its long-term value1, there must be a source of dust replenishing the ∼107 g s–1 (mostly in the form of particles of 10–4 to 1 g) destroyed by dissipative processes2. Short-period comets are the most likely such source3, but their dust production rate is uncertain.
Marco Fulle
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IF the current abundance of interplanetary dust is representative of its long-term value1, there must be a source of dust replenishing the ∼107 g s–1 (mostly in the form of particles of 10–4 to 1 g) destroyed by dissipative processes2. Short-period comets are the most likely such source3, but their dust production rate is uncertain.
Marco Fulle
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South–North and Radial Traverses through the Interplanetary Dust Cloud
Icarus, 1997Identical in situ dust detectors are flown on board the Galileo and Ulysses spacecraft. They record impacts of micrometeoroids in the ecliptic plane at heliocentric distances from 0.7 to 5.4 AU and in a plane almost perpendicular to the ecliptic from -79 deg to +79 deg ecliptic latitude.
E. Grün +19 more
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The origin and dynamics of the interplanetary dust cloud
AIP Conference Proceedings, 1996Obtaining a model of the zodiacal cloud to predict the flux in a given waveband, in a given direction, at a given time of the year, to one per cent of the peak brightness, or better, will require a detailed understanding of the dynamics of the particles that originate from each of the various sources.
S. F. Dermott +4 more
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Evidence for molecular cloud material in meteorites and interplanetary dust
Astrophysical implications of the laboratory study of presolar materials, 1997Some primitive meteorites and interplanetary dust particles (IDPs) exhibit large excesses in deuterium (D) and/or 15N relative to terrestrial values. These anomalies likely represent the partial preservation of materials that experienced extreme chemical mass fractionation in the cold, dense molecular cloud predating our Solar System.
Scott Messenger, Robert M. Walker
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