Results 41 to 50 of about 11,319 (196)
Solar Dynamics Observatory discovers thin high temperature strands in coronal active regions [PDF]
, 2011 One scenario proposed to explain the million degrees solar corona is a finely-stranded corona where each strand is heated by a rapid pulse. However, such fine structure has neither been resolved through direct imaging observations nor conclusively shown ...
Aschwanden +13 more
core +2 more sources
Kink Oscillations of Curved Arcade Loops with a Magnetic Shear
The Astrophysical JournalWe considered the kink oscillations of coronal magnetic loops, which form a coronal loop arcade with a magnetic shear. In this structure, the magnetic field consists of helical lines.
Igor Lopin
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Coronal rain in magnetic bipolar weak fields
, 2017 We intend to investigate the underlying physics for the coronal rain phenomenon in a representative bipolar magnetic field, including the formation and the dynamics of coronal rain blobs. With the MPI-AMRVAC code, we performed three dimensional radiative
Fang, Xia, Keppens, Rony, Xia, Chun
core +1 more source
Transverse Oscillations and Kelvin–Helmholtz Instability in Curved Arcade Loops with Siphon Flows
The Astrophysical JournalThe effect of plasma flow in curved arcade loops on transverse waves and oscillations is examined analytically. The model under study is a semicircular magnetic slab with finite transverse extensions and a mass flow inside, in the zero- β plasma ...
Igor Lopin
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Automated Detection of Coronal Loops using a Wavelet Transform Modulus Maxima Method
, 2010 We propose and test a wavelet transform modulus maxima method for the au- tomated detection and extraction of coronal loops in extreme ultraviolet images of the solar corona.
A. Arneodo +27 more
core +3 more sources
Vlasov-Maxwell equilibria of solar coronal loops [PDF]
Monthly Notices of the Royal Astronomical Society, 1991 A Vlasov-Maxwell description of the ubiquitous solar coronal structures is presented. It is found that an equilibrium plasma configuration can live with spatial gradients in density, temperature, current and drift speeds of the charged particles. Any stability study must be carried over this inhomogeneous equilibrium state.
V. Krishan +2 more
openaire +1 more source
The Astrophysical Journal LettersWe report the coexistence of decaying and decayless kink oscillations within a single bundle of coronal loops during the X6.3-class solar flare on 2024 February 22.
Yi Dai +6 more
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Alfvénic Motions Arising from Asymmetric Acoustic Wave Drivers in Solar Magnetic Structures
The Astrophysical Journal, 2023 Alfvénic motions are ubiquitous in the solar atmosphere and their observed properties are closely linked to those of photospheric p-modes. However, it is still unclear how a predominantly acoustic wave driver can produce these transverse oscillations in ...
Samuel J. Skirvin +2 more
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Identification of Nonlinear Damping of Transverse Loop Oscillations by KHI-induced Turbulence
The Astrophysical JournalKink oscillations in coronal loops have been extensively studied for their potential contributions to coronal heating and their role in plasma diagnostics through coronal seismology. A key focus is the strong damping of large-amplitude kink oscillations,
Sihui Zhong +2 more
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Behavior of Magnetohydrodynamic Waves in the Viscous Coronal Loops [PDF]
Iranian Journal of Astronomy and AstrophysicsStudying the dynamics of magnetic plasmas in the presence of pressure gradients, gravity, and Lorentz forces is essential for understanding wave generation and propagation in the solar atmosphere and other magnetic environments.
Roza Rezaei, Zahra Fazel
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