Results 11 to 20 of about 860 (182)

Multi-Scale Variability of Coronal Loops Set by Thermal Non-Equilibrium and Instability as a Probe for Coronal Heating

open access: yesFrontiers in Astronomy and Space Sciences, 2022
Solar coronal loops are the building blocks of the solar corona. These dynamic structures are shaped by the magnetic field that expands into the solar atmosphere.
Patrick Antolin, Clara Froment
doaj   +1 more source

Solar coronal heating by relaxation events [PDF]

open access: yesAstronomy & Astrophysics, 2003
A coronal heating model is proposed which predicts heating by a series of discrete events of various energies, analogous to the observed range of events from large scale flares through various transient brightening phenomena down to the often discussed "nanoflares".
Browning, P. K., Van der Linden, R. A M
openaire   +2 more sources

Solar Coronal Heating Fueled by Random Bursts of Fine-scale Magnetic Reconnection in Turbulent Plasma Regions

open access: yesThe Astrophysical Journal, 2023
Coronal heating is a longstanding issue in solar physics as well as plasma physics in general. In recent years, significant resolution improvements of satellite observations have contributed to a deeper understanding of small-scale physics, e.g ...
Jitong Zou   +4 more
doaj   +1 more source

EUV FLICKERING OF SOLAR CORONAL LOOPS: A NEW DIAGNOSTIC OF CORONAL HEATING [PDF]

open access: yesThe Astrophysical Journal Letters, 2016
ABSTRACT A previous work of ours found the best agreement between EUV light curves observed in an active region core (with evidence of super-hot plasma) and those predicted from a model with a random combination of many pulse-heated strands with a power-law energy distribution.
E. Tajfirouze   +3 more
openaire   +2 more sources

Research progress in coronal magnetic field measurements

open access: yes地球与行星物理论评, 2022
Different solar atmospheric layers are connected by the magnetic field of the Sun, which is the primary source for various types of solar activity. The magnetic activity of the Sun has a significant impact on the solar-terrestrial environment and human ...
Zihao Yang   +6 more
doaj   +1 more source

Solar Coronal Heating: AC versus DC

open access: yesThe Astrophysical Journal, 1997
The heating of the plasma confined in active regions of the solar corona is caused by the dissipation of magnetic stresses induced by the photospheric motions of the loop footpoints. The aim of the present paper is to analyze whether solar coronal heating is dominated by slow (DC) or rapid (AC) photospheric driving motions.
Leonardo J. Milano   +2 more
openaire   +1 more source

Steadiness of Coronal Heating

open access: yesThe 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

open access: yesThe 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

Scaling Law for the Heating of Solar Coronal Loops

open access: yesThe 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

open access: yesJournal 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

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