Results 161 to 170 of about 14,591 (218)
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Naturwissenschaften, 1979
Small sizes of individual particles and exceedingly low spatial density are formidable problems which greatly impeded progress in the dust field during the previous decade. The major experimental problems which prevented reliable measurements appear finally to have been solved and the entire dust field has seen dramatic progress over the past four ...
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Small sizes of individual particles and exceedingly low spatial density are formidable problems which greatly impeded progress in the dust field during the previous decade. The major experimental problems which prevented reliable measurements appear finally to have been solved and the entire dust field has seen dramatic progress over the past four ...
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2015
This chapter reviews how the polarization of light scattered by interplanetary dust has been used to determine some physical properties of the dust population in the interplanetary medium. Though optically thin, the interplanetary dust cloud is visible due to the faint glow (the zodiacal light) it produces at visible wavelengths through the scattering ...
Lasue, Jérémie +2 more
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This chapter reviews how the polarization of light scattered by interplanetary dust has been used to determine some physical properties of the dust population in the interplanetary medium. Though optically thin, the interplanetary dust cloud is visible due to the faint glow (the zodiacal light) it produces at visible wavelengths through the scattering ...
Lasue, Jérémie +2 more
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Refractory Minerals in Interplanetary Dust
Science, 1986A newly studied interplanetary dust particle contains a unique set of minerals that closely resembles assemblages in the refractory, calcium- and aluminum-rich inclusions in carbonaceous chondrite meteorites. The set of minerals includes diopside, magnesium- aluminum spinel, anorthite, perovskite, and fassaite.
R, Christoffersen, P R, Buseck
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2009
Dust is finely dispersed solid material in interplanetary space. It derives from a number of sources: larger meteoroids, comets, asteroids, the planets, their satellites, and rings, and there is interstellar dust sweeping through the Solar System. These dust particles are also often called micrometeoroids, and range in size from assemblages of a few ...
Eberhard Grün, Valeri Dikarev
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Dust is finely dispersed solid material in interplanetary space. It derives from a number of sources: larger meteoroids, comets, asteroids, the planets, their satellites, and rings, and there is interstellar dust sweeping through the Solar System. These dust particles are also often called micrometeoroids, and range in size from assemblages of a few ...
Eberhard Grün, Valeri Dikarev
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Bismuth in interplanetary dust
Nature, 1984Samples of a large (∼60 µm) chondritic porous (CP) aggregate collected from the stratosphere have been analysed in detail by analytical electron microscopy (AEM). Previous studies of CP aggregates have shown that they are extraterrestrial in origin1–3 and may be related to cometary debris4.
Ian D. R. Mackinnon +1 more
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2001
This is a handbook on the physics of interplanetary dust, a topic of interest not only to astronomers and space scientists but also to engineers. The following topics are covered in the book: historical perspectives; cometary dust; near-Earth environment; meteoroids and meteors; properties of interplanetary dust, information from collected samples; in ...
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This is a handbook on the physics of interplanetary dust, a topic of interest not only to astronomers and space scientists but also to engineers. The following topics are covered in the book: historical perspectives; cometary dust; near-Earth environment; meteoroids and meteors; properties of interplanetary dust, information from collected samples; in ...
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2020
Scattered sunlight from interplanetary dust particles, mostly produced by comets and asteroids, orbiting the Sun are visible at dusk or dawn as the Zodiacal Cloud. Impacts onto the space-exposed surfaces of Earth-orbiting satellites indicate that, in the current era, thousands of tons of interplanetary dust enters the Earth’s atmosphere every year ...
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Scattered sunlight from interplanetary dust particles, mostly produced by comets and asteroids, orbiting the Sun are visible at dusk or dawn as the Zodiacal Cloud. Impacts onto the space-exposed surfaces of Earth-orbiting satellites indicate that, in the current era, thousands of tons of interplanetary dust enters the Earth’s atmosphere every year ...
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Dust - Interplanetary And Interstellar
1973In the physical universe, perturbative clumpings of material include the entire spectrum of sizes from the subatomic to the metagalaxy. The span of masses from the electron to our Galaxy goes from 10-27 to 1044 gm, or 71 powers of 10. Between these two extremes, Nature displays a comprehensive array to the astronomer, as listed in Table 6-I.
F.E. Roach, Janet L. Gordon
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Reports Refractory Interplanetary Dust Particles
Science, 1987Criteria are described by which refractory interplanetary dust particles (IDPs) can be differentiated from the products of spacecraft debris. These criteria have been used to discover and characterize IDPs that are composed predominantly of refractory phases. Two of these particles contain hibonite, perovskite, spinel, refractory glass, and a melilite;
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Meteors and Interplanetary Dust
1977The business meeting was called to order at 10.00 on 28 August 1976. Approximately 30 members and guests were present. The President reported with regret the deaths of two commission members: Professor Astapovich of the USSR and Professor Olivier of USA. The meeting stood in silence for a few moments in their memory.
Edith A. Müller, Arnost Jappel
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