Results 181 to 190 of about 5,692 (228)
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Space Science Reviews, 2001
The dynamics of dust particles in the solar system is dominated by solar gravity, by solar radiation pressure, or by electromagnetic interaction of charged dust grains with the interplanetary magnetic field. For micron-sized or bigger dust particles solar gravity leads to speeds of about 30 to 40 km s−1 at the Earth’s distance.
Grün, E., Landgraf, M.
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The dynamics of dust particles in the solar system is dominated by solar gravity, by solar radiation pressure, or by electromagnetic interaction of charged dust grains with the interplanetary magnetic field. For micron-sized or bigger dust particles solar gravity leads to speeds of about 30 to 40 km s−1 at the Earth’s distance.
Grün, E., Landgraf, M.
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ACM SIGGRAPH 2009 Computer Animation Festival, 2009
This scientific visualization shows the intricate orbits of NASA's fleet of solar-observing spacecraft using accurate relative positions and velocities of spacecraft, planetary bodies, and stars, illustrating vast ranges of spatial and temporal scales.
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This scientific visualization shows the intricate orbits of NASA's fleet of solar-observing spacecraft using accurate relative positions and velocities of spacecraft, planetary bodies, and stars, illustrating vast ranges of spatial and temporal scales.
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Electron Acceleration in the Heliosphere
Space Science Reviews, 2001We review the evidence for electron acceleration in the heliosphere putting emphasis on the acceleration processes. There are essentially four classes of such processes: shock acceleration, reconnection, wave particle interaction, and direct acceleration by electric fields.
Treumann, R., Terasawa, T.
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Pickup Protons in the Heliosphere
Space Science Reviews, 1996We calculate the conditions of pickup protons inside the termination shock. Outside 50 AU the partial pressure of pickup protons is greater than the magnetic pressure by a factor of > 10, and greater than the partial pressure of solar wind protons by a factor of > 100. Thus, pickup protons have a significant dynamical influence on the structures of the
Y.C. Whang, L.F. Burlaga, N.F. Ness
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Heliospheric coordinate systems
Planetary and Space Science, 2002This article gives an overview and reference to the most common coordinate systems currently used in space science. While coordinate systems used in near-Earth space physics have been described in previous work we extend that description to systems used for physical observations of the Sun and the planets and to systems based on spacecraft location ...
Fränz, M., Harper, D.
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The Inner Heliosphere — Outer Heliosphere Comparison for Cosmic Ray Modulation
Space Science Reviews, 1998This paper summarizes cosmic ray data on both galactic and anomalous particles in the inner and outer heliosphere near the sunspot minimum in 1995 and 1996 at the end of solar cycle 22. These data come from the IMP spacecraft in the inner heliosphere and the Voyager and Pioneer spacecraft in the outer heliosphere.
W.R. Webber, J.A. Lockwood
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AIP Conference Proceedings, 2016
Turbulence in the solar wind is ubiquitous. To understand the transport of low-frequency turbulence in the sub- and super-Alfvenic solar wind flow, Zank et al. 2012 developed an extensive turbulence transport model that describes the evolution of the energy in forward and backward propagating modes, the total turbulent energy, the cross-helicity, the ...
L. Adhikari +5 more
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Turbulence in the solar wind is ubiquitous. To understand the transport of low-frequency turbulence in the sub- and super-Alfvenic solar wind flow, Zank et al. 2012 developed an extensive turbulence transport model that describes the evolution of the energy in forward and backward propagating modes, the total turbulent energy, the cross-helicity, the ...
L. Adhikari +5 more
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Astrophysics and Space Science, 2001
Launched in October 1990, the ESA-NASA Ulysses mission has conducted the very first survey of the heliosphere within 5 AU of the Sun over the full range of heliolatitudes. With polar passes taking place in 1994 and 1995, the timing of the mission has enabled Ulysses to characterise the global structure of the heliosphere at solar minimum, when the ...
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Launched in October 1990, the ESA-NASA Ulysses mission has conducted the very first survey of the heliosphere within 5 AU of the Sun over the full range of heliolatitudes. With polar passes taking place in 1994 and 1995, the timing of the mission has enabled Ulysses to characterise the global structure of the heliosphere at solar minimum, when the ...
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2001
Dust in space has been recognized for centuries. Three dusty phenomena in space can be observed by the naked eye: comets, meteors and zodiacal light. In the past the sporadic appearance of bright comets received much attention, and not only from astronomers, because it was linked to exceptional events in human history such as victory or defeat in war ...
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Dust in space has been recognized for centuries. Three dusty phenomena in space can be observed by the naked eye: comets, meteors and zodiacal light. In the past the sporadic appearance of bright comets received much attention, and not only from astronomers, because it was linked to exceptional events in human history such as victory or defeat in war ...
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Space Science Reviews, 1995
A review is given of heliospheric radio emissions. Only radio emissions generated well away from the Sun (beyond a few solar radii) and well away from the magnetized planets are considered. These consist of (1) type III radio bursts, (2) type II radio bursts, and (3) heliospheric 2-3 kHz radio emissions.
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A review is given of heliospheric radio emissions. Only radio emissions generated well away from the Sun (beyond a few solar radii) and well away from the magnetized planets are considered. These consist of (1) type III radio bursts, (2) type II radio bursts, and (3) heliospheric 2-3 kHz radio emissions.
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