Results 301 to 310 of about 552,904 (341)
Some of the next articles are maybe not open access.
Turbulence in the Solar Atmosphere and Solar Wind
Space Science Reviews, 2010The objective of this review article is to critically analyze turbulence and its role in the solar atmosphere and solar wind, as well as to provide a tutorial overview of topics worth clarification. Although turbulence is a ubiquitous phenomenon in the sun and its heliosphere, many open questions exist concerning the physical mechanisms of turbulence ...
J. Léorat +10 more
openaire +3 more sources
Solar and solar-wind isotopic compositions
Earth and Planetary Science Letters, 2004With only a few exceptions, the solar photosphere is thought to have retained the mean isotopic composition of the original solar nebula, so that, with some corrections, the photosphere provides a baseline for comparison of all other planetary materials. There are two sources of information on the photospheric isotopic composition: optical observations,
Wiens, Roger C. +3 more
openaire +3 more sources
2003
This chapter is intended to be an overview of the aspects of solar wind, with particular emphasis on the properties of the solar wind within about 1AU of the Sun. The topic is split into two parts on the basis of two types of solar wind flows, (i) quasi-stationary winds and (ii) transient flows.
openaire +4 more sources
This chapter is intended to be an overview of the aspects of solar wind, with particular emphasis on the properties of the solar wind within about 1AU of the Sun. The topic is split into two parts on the basis of two types of solar wind flows, (i) quasi-stationary winds and (ii) transient flows.
openaire +4 more sources
Reports on Progress in Physics, 1967
The historical evidence that the Sun is a constant source of an outwardflowing supersonic stream of ionized hydrogen and helium now called the solar wind has been confirmed by many recent satellite measurements. Although the intensity of the wind varies and increases greatly as a result of sunspot activity on the solar surface, normally during quiet ...
openaire +1 more source
The historical evidence that the Sun is a constant source of an outwardflowing supersonic stream of ionized hydrogen and helium now called the solar wind has been confirmed by many recent satellite measurements. Although the intensity of the wind varies and increases greatly as a result of sunspot activity on the solar surface, normally during quiet ...
openaire +1 more source
2007
The Sun continually ejects matter into space, blowing a huge bubble of supersonic plasma. This solar wind bathes the whole solar system and shapes all planetary environments. The growth of space technology has considerably increased our knowledge of this medium.
openaire +4 more sources
The Sun continually ejects matter into space, blowing a huge bubble of supersonic plasma. This solar wind bathes the whole solar system and shapes all planetary environments. The growth of space technology has considerably increased our knowledge of this medium.
openaire +4 more sources
Interdependence of solar wind models and solar wind observations
AIP Conference Proceedings, 1997A brief overview of the observations in the inner corona is presented together with three different solar wind models. It is shown that the very high flow speeds derived from the observations in the inner corona can be modeled if either the proton temperature is extremely high, or if there exists a mechanism that adds momentum to the flow much closer ...
Nancy Brickhouse, Ruth Esser
openaire +2 more sources
Space Science Reviews, 1983
Some advances in the hydrodynamical large-scale theory, on the one hand, and in the kinetic theory, on the other hand, of the solar wind are reviewed. For brevity, we sketch the general frame, point out the problems and approaches and then illustrate by a few examples the ways in which progress has been achieved during the past four years.
openaire +2 more sources
Some advances in the hydrodynamical large-scale theory, on the one hand, and in the kinetic theory, on the other hand, of the solar wind are reviewed. For brevity, we sketch the general frame, point out the problems and approaches and then illustrate by a few examples the ways in which progress has been achieved during the past four years.
openaire +2 more sources
1998
The first evidence of the solar wind was provided through observations of comet tail deflections by L. Biermann in 1951. A cometary ion tail is oriented along the difference between the cometary and solar wind velocities, whereas the dust tail is in the antisunward direction; the ion tail directions demonstrated the existence of an outflow of ionized ...
openaire +2 more sources
The first evidence of the solar wind was provided through observations of comet tail deflections by L. Biermann in 1951. A cometary ion tail is oriented along the difference between the cometary and solar wind velocities, whereas the dust tail is in the antisunward direction; the ion tail directions demonstrated the existence of an outflow of ionized ...
openaire +2 more sources
Space Science Reviews, 1996
The solar wind carves a cavity in the flow of interstellar H atoms through the solar system by charge-exchange ionization. The resulting Ly-α sky pattern depends on the latitude distribution of the solar wind flux and velocity. We review how the solar wind characteristics (mass flux latitude distribution) can be retrieved from Ly-α observations ...
Bertaux, Jean-Loup +2 more
openaire +4 more sources
The solar wind carves a cavity in the flow of interstellar H atoms through the solar system by charge-exchange ionization. The resulting Ly-α sky pattern depends on the latitude distribution of the solar wind flux and velocity. We review how the solar wind characteristics (mass flux latitude distribution) can be retrieved from Ly-α observations ...
Bertaux, Jean-Loup +2 more
openaire +4 more sources
2000
Variations in the Earth’s magnetic field were first observed in the nineteenth century as a sudden increase (by about 10-3 G) followed by a slow decrease. These geomagnetic storms were sometimes found to occur one or two days after large solar flares, and further evidence for a link between the two phenomena came with the discovery of an 11-yr ...
openaire +2 more sources
Variations in the Earth’s magnetic field were first observed in the nineteenth century as a sudden increase (by about 10-3 G) followed by a slow decrease. These geomagnetic storms were sometimes found to occur one or two days after large solar flares, and further evidence for a link between the two phenomena came with the discovery of an 11-yr ...
openaire +2 more sources