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3D Reconstruction of Coronal Loops by the Principal Component Analysis [PDF]

open access: yesEntropy, 2013
Knowing the three dimensional structure of plasma filaments in the uppermost part of the solar atmosphere, known as coronal loops, and especially their length, is an important parameter in the wave-based diagnostics of this part of the Sun.
Erwin Verwichte   +2 more
doaj   +4 more sources

Coronal Loops: Observations and Modeling of Confined Plasma

open access: yesLiving Reviews in Solar Physics, 2014
Coronal loops are the building blocks of the X-ray bright solar corona. They owe their brightness to the dense confined plasma, and this review focuses on loops mostly as structures confining plasma.
Fabio Reale
doaj   +3 more sources

Coronal Loops: Observations and Modeling of Confined Plasma

open access: yesLiving Reviews in Solar Physics, 2010
Coronal loops are the building blocks of the X-ray bright solar corona. They owe their brightness to the dense confined plasma, and this review focuses on loops mostly as structures confining plasma.
Fabio Reale
doaj   +2 more sources

Coronal Loop Detection Using Multiscale Convolutional Neural Networks

open access: yesThe Astrophysical Journal Supplement Series, 2023
Solar magnetic fields play an important role in many solar activities, such as the solar wind, coronal mass ejections, and coronal oscillation. Coronal loops are curvilinear structures in the solar atmosphere and are closely related to coronal magnetic ...
Yunzhi Wang, Bo Liang, Song Feng
doaj   +1 more source

High-order Harmonics of a Kink Wave and a Narrow Quasiperiodic Fast-propagating Wave Train Excited Simultaneously in a Plasma Resonator

open access: yesThe Astrophysical Journal, 2023
We present the observations of multimode kink waves and a narrow quasiperiodic fast-propagating (QFP) wave train in association with a jet on 2011 December 11.
Zhining Qu   +5 more
doaj   +1 more source

A Possible Mechanism for the “Late Phase” in Stellar White-light Flares

open access: yesThe Astrophysical Journal, 2023
M dwarf flares observed by the Transiting Exoplanet Survey Satellite (TESS) sometimes exhibit a peak-bump light-curve morphology, characterized by a secondary, gradual peak well after the main, impulsive peak.
Kai E. Yang   +3 more
doaj   +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

A Statistical Study of Short-period Decayless Oscillations of Coronal Loops in an Active Region

open access: yesThe Astrophysical Journal, 2023
Coronal loop oscillations are common phenomena in the solar corona, which are often classified as decaying and decayless oscillations. Using the high-resolution observation measured by the Extreme Ultraviolet Imager (EUI) on board the Solar Orbiter, we ...
Dong Li, David M. Long
doaj   +1 more source

Fleeting Small-scale Surface Magnetic Fields Build the Quiet-Sun Corona

open access: yesThe Astrophysical Journal Letters, 2023
Arch-like loop structures filled with million Kelvin hot plasma form the building blocks of the quiet-Sun corona. Both high-resolution observations and magnetoconvection simulations show the ubiquitous presence of magnetic fields on the solar surface on ...
L. P. Chitta   +21 more
doaj   +1 more source

From Coronal Holes to Pulsars and Back Again: Learning the Importance of Data

open access: yesFrontiers 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

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