Results 191 to 200 of about 16,769 (212)

Solar coronal heating by high-frequency dispersive Alfvén waves

Solar Physics, 1999
It is shown that high-frequency dispersive kinetic Alfven waves can cause significant electron heating in the solar corona. The heating is produced by collisionless electron Landau dissipation of the parallel electron current associated with high-frequency dispersive kinetic Alfven waves, which have a parallel electric field.
Shukla, P., Bingham, R., McKenzie, J., Axford, W.   +3 more
openaire   +2 more sources

Learning about coronal heating from solar wind observations

Physics of Plasmas, 2005
Vlasov theory describing the interaction of Alfvén-cyclotron fluctuations and ions in the collisionless solar wind predicts that alpha particles should be strongly scattered perpendicular to the background magnetic field when the alpha/proton relative velocity vαp is negative or has a sufficiently small positive value relative to the Alfvén speed vA ...
S. Peter Gary, Ruth M. Skoug, Charles W. Smith   +2 more
openaire   +1 more source

Solar coronal heating and weak fast shocks

2002
It is suggested that protons and minor ions in the solar corona can be heated and accelerated by fast shocks.
openaire   +1 more source

Interchange reconnection as the source of the fast solar wind within coronal holes

Nature, 2023
Stuart D Bale, James F Drake, Michael D Mcmanus   +2 more
exaly  

HEATING CORONAL HOLES AND ACCELERATING THE SOLAR WIND

1992
The special energy requirements of a coronal hole combined with current knowledge of the limited dissipation of Alfven and fast mode MHD waves in the solar corona suggest a unique source of heat for the coronal hole. The near coronal hole requires approximately 3 - 4 x 10 exp 5 ergs/sq cm s, which can come only from the fluid jets, fast particles, and ...
openaire   +1 more source

Picoflare jets power the solar wind emerging from a coronal hole on the Sun

Science, 2023
Lakshmi Pradeep Chitta, Andrei N Zhukov, David Berghmans   +2 more
exaly  

CHAPTER 9: ON SOLAR CORONAL HEATING MECHANISMS

Physics of the Sun and Its Atmosphere, 2008
K. PANDEY, U. NARAIN
openaire   +1 more source

Coronal heating and solar wind acceleration by turbulence

2006
Observations such as Spartan and SOHO UVCS have challenged ideas for the acceleration of the solar wind by constraining models to produce >1.5 Million K protons, several hundred km~s-1 radial outflows, and >700 km~s-1 terminal speeds in the wind emanating from polar coronal holes, with coronal electrons remaining cooler than protons.
VERDINI, ANDREA, VELLI, MARCO, W. H. Matthaeus   +2 more
openaire   +1 more source

Highly structured slow solar wind emerging from an equatorial coronal hole

Nature, 2019
Stuart D Bale, Samuel Badman, Trevor A Bowen   +2 more
exaly  

Understanding coronal heating and solar wind acceleration: Case for in situ near-Sun measurements

Reviews of Geophysics, 2007
Marco Velli, Volker Bothmer, Ingrid Mann
exaly