Self-organized braiding in solar coronal loops
نویسندگان
چکیده
منابع مشابه
Nonlinear wave heating of solar coronal loops
Theheating ofmagnetically closed structures (loops) in the solar corona by the resonant absorption of incident waves is studied by means of numerical simulations in the framework of nonlinear resistive magnetohydrodynamics (MHD). It is shown that the dynamics in the resonant layer is indeed very nonlinear for typical coronal parameters. The effect of the nonlinearity on the efficiency of the re...
متن کاملPlasma Condensation in Solar Coronal Loops I. Basic Processes
In the first part of this work, we report numerical calculations of the condensation of plasma in short coronal loops, which has several interesting physical consequences. We propose a connection between small, cool loops, which presumably constitute the solar transition region, and prominences in the sense that the same physical mechanism governs their dynamics, namely the onset of instability...
متن کاملPlasma Sloshing in Pulse-heated Solar and Stellar Coronal Loops
INAF-Osservatorio Astronomico di Palermo, Piazza del Parlamento 1, 90134 Palermo, Italy Abstract There is evidence that coronal heating is highly intermittent, and flares are the high energy extreme. The properties of the heat pulses are difficult to constrain. Here hydrodynamic loop modeling shows that several large amplitude oscillations (∼ 20% in density) are triggered in flare light curves ...
متن کاملFlare-generated acoustic oscillations in solar and stellar coronal loops
Long period longitudinal oscillations of a flaring coronal loop are studied numerically. In the recent work of Nakariakov et al. (2004) it has been shown that the time dependence of density and velocity in a flaring loop contain pronounced quasi-harmonic oscillations associated with the 2nd harmonic of a standing slow magnetoacoustic wave. In this work we investigate the physical nature of thes...
متن کاملAn Ab Initio Approach to Solar Coronal Loops
Data from recent numerical simulations of the solar corona and transition region are analysed and the magnetic field connection between the low corona and the photosphere is found to be close to that of a potential field. The fieldline to fieldline displacements follow a power law distribution with typical displacements of just a few Mm. Three loops visible in emulated Transition Region And Cor...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Plasma Physics
سال: 2015
ISSN: 0022-3778,1469-7807
DOI: 10.1017/s0022377815000483