2-site measurements of interplanetary scintillation (IPS) provide measurements of solar wind speed in regions of the heliosphere which are otherwise inaccessible. We present results from co-ordinated observations made with the EISCAT and MERLIN facilities during 1999 and 2000, covering heliocentric ...
solar windturbulencewavesWe analyze measured proton and electron temperatures in the high-speed solar wind in order to calculate the separate rates of heat deposition for protons and electrons. When comparing with other regions of the heliosphere, the fast solar wind has the lowest density and the...
We present in this Letter the first coordinated radio occultation measurements and ultraviolet observations of the inner corona below 5.5R, obtained during the Galileo solar conjunction in 1997 January, to establish the origin of the slow solar wind. Limits on the flow speed are derived from the ...
The observed strengthening in wind speed and wave height is what some climate change models had expected. “It seems that climate change is not only affecting the number and the intensity of storms around the world – but also the average windiness and wave heights,” says Mark Maslin ...
Our results also showed that field lines associated with fast and slow wind have different winding offsets with respect to the predicted Parker spiral. A possible explanation might be in a different value of the corotating radius b depending on the speed of the wind. A value of b = 20R, ...
the speed of the winds of a brown dwarf—too big to be a planet, too small to be a star,” said Peter K.G. Williams, Innovation Scientist for CfA and the American Astronomical Society, in apress release. Williams led the observations that allowed the team to mea...
Notice that the solar wind speed was fairly stable while the density changed by a factor of 4 during a 6-hr period only one day before the data gap. FAST ELECTRONS, SOLAR WIND AND TYPE-III BURSTS 495 Table Ib indicates that the smallest d occurs for model (4) which is the densest ...
The Alfvén speed was found to be much smaller than the solar wind speed in all the events, sunward k in the spacecraft frame is therefore highly improbable. The observed spatial dependence of the spectral density could not be the results of ion cyclotron resonance, thus mostly likely due to...
McIntosh, S. W., Recent Observations of Plasma and Alfve´nic Wave Energy Injection at the Base of the Fast Solar Wind, Space Sci. Rev., 172, 69-87, doi:10.1007/s11214-012-9889-x, 2012.McIntosh, S.W.: Recent Observations of Plasma and Alfvenic Wave Energy Injection at the Base ...
The transition of preferential energization from alpha particles to protons may be self-modulated by a differential speed and a temperature anisotropy of alpha particles the self-consistently evolving wave–particle interaction. Therefore, fast-cyclotron waves, as a result of linear mode coupling, ...