Results 31 to 40 of about 16,769 (212)
Directly comparing coronal and solar wind elemental fractionation
, 2020 As the solar wind propagates through the heliosphere, dynamical processes irreversibly erase the signatures of the near-Sun heating and acceleration processes. The elemental fractionation of the solar wind should not change during transit however, making
Baker, D. +3 more
core +1 more source
Self-similar signature of the active solar corona within the inertial range of solar-wind turbulence [PDF]
, 2007 We quantify the scaling of magnetic energy density in the inertial range of solar-wind turbulence seen in situ at 1 AU with respect to solar activity. At solar maximum, when the coronal magnetic field is dynamic and topologically complex, we find self ...
A. N. Kolmogorov +10 more
core +2 more sources
The role of torsional Alfven waves in coronal heating [PDF]
, 2009 In the context of coronal heating, among the zoo of MHD waves that exist in the solar atmosphere, Alfven waves receive special attention. Indeed, these waves constitute an attractive heating agent due to their ability to carry over the many different ...
Antiochos +40 more
core +1 more source
The Astrophysical Journal, 2023 The EUI instrument on the Solar Orbiter spacecraft has obtained the most stable, high-resolution images of the solar corona from its orbit with a perihelion near 0.4 au.
P. G. Judge
doaj +1 more source
Multifrequency Microwave Imaging of Weak Transients from the Quiet Solar Corona
The Astrophysical Journal, 2023 Understanding the dynamics of the quiet solar corona is important for answering key questions including the coronal heating problem. Multiple studies have suggested small-scale magnetic-reconnection events may play a crucial role.
Surajit Mondal, Bin Chen, Sijie Yu
doaj +1 more source
Recent Observations of Plasma and Alfvenic Wave Energy Injection at the Base of the Fast Solar Wind
, 2012 We take stock of recent observations that identify the episodic plasma heating and injection of Alfvenic energy at the base of fast solar wind (in coronal holes).
McIntosh, Scott W.
core +1 more source
Drift waves in the corona: heating and acceleration of ions at frequencies far below the gyro frequency [PDF]
, 2010 In the solar corona, several mechanisms of the drift wave instability can make the mode growing up to amplitudes at which particle acceleration and stochastic heating by the drift wave take place. The stochastic heating, well known from laboratory plasma
Alfvén +28 more
core +2 more sources
Scaling Law for the Heating of Solar Coronal Loops
The Astrophysical Journal, 1999 12 pages, 4 figures. Astrophysical Journal Letters (in press)
Dmitruk, P., Gómez, D.O.
openaire +5 more sources
Coronal Heating & Solar Wind Acceleration by Drift Waves
Journal of Physics: Conference Series, 2015 An alternative approach to the coronal heating problem, based on the theory of drift waves, has been proposed. The drift mode is the only mode that is able to survive the drastically different (collisional/collisionless) extremes in the different layers of the solar atmosphere. As a matter of fact, this mode is over stable, i.e.
Poedts, S., Kanella, Ch, Lapenta, G.
openaire +1 more source
From Coronal Holes to Pulsars and Back Again: Learning the Importance of Data
Frontiers in Astronomy and Space Sciences, 2022 Although wanting to become an astronomer from an early age, I ended up in solar physics purely by chance, after first working in high-energy astrophysics.
Y.-M. Wang
doaj +1 more source