Results 201 to 210 of about 1,655 (241)

Physics of Interplanetary and Interstellar Dust

Space Science Reviews, 1996
Observations of dust in the solar system and in the diffuse interstellar medium are summarized. New measurements of interstellar dust in the heliosphere extend our knowledge about micron-sized and bigger particles in the local interstellar medium. Interplanetary grains extend from submicron- to meter-sized meteoroids. The main destructive effect in the
Eberhard Gr�n, Jiri Svestka
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Research Progress of Solar Corona and Interplanetary Physics in China: 2010-2012

Kongjian Kexue Xuebao, 2012
Xinhua Zhao, Changqing Xiang, Zhao Xinhua   +2 more
exaly   +3 more sources

Physical Properties of Interplanetary Grains

International Astronomical Union Colloquium, 1976
This paper presents physical properties of interplanetary dust determined by in-situ techniques. It is probable that, like millimeter-sized meteoroids (Jacchia, et al. 1967), most interplanetary dust is cometary matter. Although a cometary origin for interplanetary dust is widely accepted (Whipple 1967) (Millman, 1972) there is currently no unambiguous
D. E. Brownlee, F. Horz, D. A. Tomandl, P. W. Hodge   +3 more
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Physical consistency in modeling interplanetary magnetohydrodynamic fluctuations

Physical Review Letters, 1990
The validity of the Velli, Grappin and Mangeney (1989) model is evaluated. It is argued that the model is incorrect because it mixes different dynamical models, assumes weak nonlinearities, makes predictions that vary with observations, and violates causality.
, Zhou, , Matthaeus, , Roberts, , Goldstein   +3 more
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Physical properties of cometary and interplanetary dust

Planetary and Space Science, 2007
Abstract In the absence of numerous in situ studies, physical properties of cosmic dust may be derived from observations of their light scattering and thermal properties, through numerical simulations making use of realistic assumptions. Estimations about cometary and interplanetary dust composition, structure, size, as well as about their light ...
Levasseur-Regourd, Anny Chantal, Mukai, T., Lasue, Jérémie, Okada, Y.   +3 more
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Physical Processes on Interplanetary Dust

2001
This chapter discusses physical processes affecting interplanetary dust grains, including processes determining dust formation, growth, disruption, and alteration. Computer simulations and laboratory studies of coagulation and aggregation show that mutual collisions between solid grains determine the growth of solid aggregates in the early solar system
Tadashi Mukai, Akiko M. Nakamura, Jürgen Blum, Robert E. Johnson, Ove Havnes   +4 more
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On the size distribution and physical properties of interplanetary dust grains

Icarus, 1980
Abstract This paper synthesizes information on the size distribution and physical properties of interplanetary dust grains obtained from analyses of lunar microcraters performed until 1979. The different aspects of these analyses (counting methods, simulation, calibrations) are summarized and a large amount of data is collected and discussed in order
L.B. Le Sergeant D'Hendecourt, Ph.L. Lamy   +1 more
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Interplanetary Coronal Mass Ejections Observed in the Heliosphere: 3. Physical Implications

Space Science Reviews, 2009
We conclude the heliospheric image series with this third and final instalment, where we consider the physical implications of our reconstruction of interplanetary coronal mass ejections from heliospheric imagers. In Paper 1 a review of the theoretical framework for the appearance of ICMEs in the heliosphere was presented and in Paper 2 a model was ...
Timothy A. Howard, S. James Tappin
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Overview of Cosmic Rays, Solar and Interplanetary Physics Research (1987 – 1990)

Reviews of Geophysics, 1991
A brief survey of recent U.S. investigations in the field of heliospheric plasmas and their manifestations is presented, introducing the following collection of detailed reviews (accessions A91-46959 to A91-46964). Topics examined include the large-scale structure of interplanetary plasmas, models of Galactic cosmic-ray production and propagation ...
exaly   +2 more sources

Physical Properties of the Interplanetary Medium

1985
The solar wind is one of the main factors which, along with electromagnetic radiation from the Sun and planets, determines physical conditions in the circumsolar space. This is a more or less continuous plasma flow which is generated in the upper corona of the Sun and carries magnetic fields of solar origin.
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