Results 1 to 10 of about 50 (47)
The evolution of the solar wind [PDF]
Living Reviews in Solar Physics, 2021 AbstractHow has the solar wind evolved to reach what it is today? In this review, I discuss the long-term evolution of the solar wind, including the evolution of observed properties that are intimately linked to the solar wind: rotation, magnetism and activity. Given that we cannot access data from the solar wind 4 billion years ago, this review relies
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Physical Review Letters, 2022 We study the solar emission of light dark sector particles that self-interact strongly enough to self-thermalize. The resulting outflow behaves like a fluid which accelerates under its own thermal pressure to highly relativistic bulk velocities in the solar system.
Jae Hyeok Chang +4 more
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The Solar Wind as a Turbulence Laboratory [PDF]
Living Reviews in Solar Physics, 2005 In this review we will focus on a topic of fundamental importance for both astrophysics and plasma physics, namely the occurrence of large-amplitude low-frequency fluctuations of the fields that describe the plasma state. This subject will be treated within the context of the expanding solar wind and the most meaningful advances in this research field ...
BRUNO R, CARBONE, Vincenzo
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Proton and Electron Temperatures in the Solar Wind and Their Correlations with the Solar Wind Speed
The Astrophysical Journal, 2023 Abstract The heating and acceleration of the solar wind remains one of the unsolved fundamental problems in heliophysics. It is usually observed that the proton temperature T i is highly correlated with the solar wind speed V SW, while the electron temperature T
Chen 辰 Shi 时 +10 more
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, 2020 The hot solar atmosphere continually expands out into space to form the solar wind, which drags with it the Sun’s magnetic field. This creates a cavity in the interstellar medium, extending far past the outer planets, within which the solar magnetic-field dominates. While the physical mechanisms by which the solar atmosphere is heated are still debated,
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Fractionation of the Solar Wind [PDF]
Highlights of Astronomy, 1995 The composition of the solar wind (SW) is not a true sample of the solar composition, but it is fractionated with respect to the solar photosphere. This fractionation follows the well-known first ionization potential (FIP) pattern: When plotting the SW abundances with respect to the solar abundances as a function of FIP, a step function is obtained ...
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Highlights of Astronomy, 1989 AbstractThis review discusses winds from stars with hot outer atmospheres, stars with coronae similar to the sun. It illustrates how solar observations can be used to test a theoretical model for solar-stellar winds, and thereby provide some insights concerning applications to studying winds from stars other than the sun.
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Tenuous solar winds: Insights on solar wind–magnetosphere interactions
Journal of Atmospheric and Solar-Terrestrial Physics, 2008 Abstract During solar cycle 23 quasi-dropouts of the solar wind (density 1 cm - 3 ) were observed. These tenuous winds allow us to probe properties of the magnetosphere and its coupling to the solar wind which would otherwise be obscured by the effect of high density.
Farrugia, Charlie J. +7 more
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The solar wind energy flux [PDF]
Solar Physics, 2012 The solar-wind energy flux measured near the ecliptic is known to be independent of the solar-wind speed. Using plasma data from Helios, Ulysses, and Wind covering a large range of latitudes and time, we show that the solar-wind energy flux is independent of the solar-wind speed and latitude within 10%, and that this quantity varies weakly over the ...
Le Chat, Gaétan +2 more
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Solar-Wind Structures That Are Not Destroyed by the Action of Solar-Wind Turbulence [PDF]
Frontiers in Astronomy and Space Sciences, 2021 If MHD turbulence is a dominant process acting in the solar wind between the Sun and 1 AU, then the destruction and regeneration of structure in the solar-wind plasma is expected. Six types of solar-wind structure at 1 AU that are not destroyed by turbulence are examined: 1) corotating-interaction-region stream interfaces, 2) periodic density ...
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