• No results found

Flux tubes

Neutral and non neutral collisionless plasma equilibria for twisted flux tubes : the Gold Hoyle model in a background field

Neutral and non neutral collisionless plasma equilibria for twisted flux tubes : the Gold Hoyle model in a background field

... Recently, there have been studies on “tokamak-like” VM equilibria with flows, 19–21 starting from the VM equation in cylindrical geometry and working towards Grad-Shafranov equations for the vector potential. We also ...

13

Resonant absorption in expanding coronal magnetic flux tubes with uniform density

Resonant absorption in expanding coronal magnetic flux tubes with uniform density

... the flux tube ensured that during relaxation (see below), the magnetic field was not artificially constrained by the boundaries of the ...straight flux tubes, the expansion of the magnetic structure ...

13

Simultaneous THEMIS observations in the near tail portion of the inner and outer plasma sheet flux tubes at substorm onset

Simultaneous THEMIS observations in the near tail portion of the inner and outer plasma sheet flux tubes at substorm onset

... magnetic flux pileup in the near-Earth tail at this stage caused the fast expansion of the strongly heated plasma sheet, which proceeded for a few minutes while the plasma kept the same V z (directed toward the ...

11

Generation of Magnetohydrodynamic Waves in Low Solar Atmospheric Flux Tubes by Photospheric Motions

Generation of Magnetohydrodynamic Waves in Low Solar Atmospheric Flux Tubes by Photospheric Motions

... magnetic flux tubes are generated due to the interaction of granulation motion and background magnetic ...magnetic flux tube embedded in a realistic gravitationally stratified solar atmosphere ...

12

Propagation of Long-Wavelength Nonlinear Slow Sausage Waves in Stratified Magnetic Flux Tubes

Propagation of Long-Wavelength Nonlinear Slow Sausage Waves in Stratified Magnetic Flux Tubes

... magnetic flux in the Sun is inhomogeneous, with isolated magnetic flux tubes being a common form of ...These tubes form an “elastic medium” and may therefore act as ...

16

Flux tubes in Nf = 2 + 1 QCD with external magnetic fields

Flux tubes in Nf = 2 + 1 QCD with external magnetic fields

... of flux tubes forming between pairs of static color sources have always been a way to study the emergence of a confining potential in ...of flux tube formation emerges very naturally within the dual ...

8

Three dimensional MHD simulations of the dynamics and energetics of coronal flux tubes

Three dimensional MHD simulations of the dynamics and energetics of coronal flux tubes

... slender flux tube with any radial velocity shear should permit the formation of the KHI at the ...short flux tube, we expect that vortex formation at the apex (but not at the foot points) will generate ...

214

Theory of one dimensional Vlasov Maxwell equilibria: with applications to collisionless current sheets and flux tubes

Theory of one dimensional Vlasov Maxwell equilibria: with applications to collisionless current sheets and flux tubes

... Magnetic flux tubes and flux ropes are prevalent in the study of plasmas, with a wide variety of observed forms in nature and experiment, as well as uses and applications in numerical experiments and ...

260

Dynamics of convection around axisymmetric magnetic flux tubes

Dynamics of convection around axisymmetric magnetic flux tubes

... Magnetic flux is pushed to boundaries between convection cells (granules), where they form flux elements that have a lifetime of a few minutes, field strengths of 1500G and magnetic fluxes in the order of ...

5

Magnetohydrostatic equilibrium. II. Three-dimensional multiple open magnetic flux tubes in the stratified solar atmosphere

Magnetohydrostatic equilibrium. II. Three-dimensional multiple open magnetic flux tubes in the stratified solar atmosphere

... One approach to constructing the magnetic field is to ap- ply a potential field to the prescribed atmosphere and allow the system to relax numerically (e.g., Solanki & Steiner 1990; Khomenko et al. 2008). Simulations ...

16

QCD flux tubes across the deconfinement phase transition

QCD flux tubes across the deconfinement phase transition

... color flux tubes dominantly made up of chromoelectric field directed along the line joining a static quark-antiquark pair have been investigated, in the cases of zero temperature [14, 15, 21] and nonzero ...

8

Observational signatures of transverse magnetohydrodynamic waves and associated dynamic instabilities in coronal flux tubes

Observational signatures of transverse magnetohydrodynamic waves and associated dynamic instabilities in coronal flux tubes

... We have investigated the observational signatures of transverse MHD waves by performing 3D MHD numerical simulations. We have focused on the case of standing (global) kink waves in coronal flux tubes (with ...

24

Partitioning of magnetic helicity in reconnected flux tubes

Partitioning of magnetic helicity in reconnected flux tubes

... ux tubes with footpoints anchored to a plane, such as the photosphere, is ...ux tubes, speci fi cally their twist, which can be quanti fi ed using magnetic ...the tubes are of equal fl ux (Φ) and are ...

9

Development of structure in pores and sunspots: flows around axisymmetric magnetic flux tubes

Development of structure in pores and sunspots: flows around axisymmetric magnetic flux tubes

... Our choice of parameters is guided by our aim to study how the behaviour of magnetic ux tubes in a convecting at- mosphere is aected by their ux content. Since the vigour of convection in the unmagnetized parts of ...

17

Nonlinear theory of non-axisymmetric resonant slow waves in straight magnetic flux tubes

Nonlinear theory of non-axisymmetric resonant slow waves in straight magnetic flux tubes

... Narain and Ulmschneider 1996). This division is mainly based on the time scale of the response of the inhomogeneous magnetic plasma loops to the driving motions or forces (Heyvaerts and Priest 1983; Zirker 1993). When ...

22

Nonlinear theory of resonant slow MHD waves in twisted magnetic flux tubes

Nonlinear theory of resonant slow MHD waves in twisted magnetic flux tubes

... The goal of the present paper is to investigate how nonlinearity affects the dynam- ics of resonant slow MHD waves in twisted magnetic flux tubes and to investigate the effect of magnetic twisting on the connection ...

20

Resonant Absorption of Axisymmetric Modes in Twisted Magnetic Flux Tubes

Resonant Absorption of Axisymmetric Modes in Twisted Magnetic Flux Tubes

... It has been shown recently that magnetic twist and axisymmetric MHD modes are ubiquitous in the solar atmosphere, and therefore the study of resonant absorption for these modes has become a pressing issue because it can ...

14

Converging and diverging convection around axisymmetric magnetic flux tubes

Converging and diverging convection around axisymmetric magnetic flux tubes

... Reuse See Attached Takedown If you consider content in White Rose Research Online to be in breach of UK law, please notify us by emailing [email protected] including the URL of the[r] ...

17

Axisymmetric Modes in Magnetic Flux Tubes with Internal and External Magnetic Twist

Axisymmetric Modes in Magnetic Flux Tubes with Internal and External Magnetic Twist

... ux tubes is not ...ux tubes with completely irregular cross  section, some steps toward  this direction have been taken by considering fl ux tubes with elliptical cross  - section;  see, for ...

12

Nonlinear three-dimensional magnetoconvection around magnetic flux tubes

Nonlinear three-dimensional magnetoconvection around magnetic flux tubes

... Magnetic flux in the solar photosphere forms concentrations from small scales, such as flux elements, to large scales, such as sunspots. This paper presents a study of the decay process of large magnetic flux tubes, ...

28

Show all 4992 documents...

Related subjects