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Title of Journal: Sol Phys

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Abbravation: Solar Physics

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Springer Netherlands

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DOI

10.1016/0024-3205(94)00651-2

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1573-093X

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Nonreflective Propagation of Kink Waves in Corona

Authors: M S Ruderman E Pelinovsky N S Petrukhin T Talipova
Publish Date: 2013/03/20
Volume: 286, Issue: 2, Pages: 417-426
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Abstract

Propagating kink waves are ubiquitously observed in solar magnetic wave guides We consider the possibility that these waves propagate without reflection although there is some inhomogeneity We briefly describe the general theory of nonreflective onedimensional wave propagation in inhomogeneous media This theory is then applied to kinkwave propagation in coronal loops We consider a coronal loop of halfcircle shape embedded in an isothermal atmosphere and assume that the plasma temperature is the same inside and outside the loop We show that nonreflective kinkwave propagation is possible for a particular dependence of the loop radius on the distance along the loop A viable assumption that the loop radius increases from the loop footpoint to the apex imposes a lower limit on the loop expansion factor which is the ratio of the loop radii at the apex and footpoints This lower limit increases with the loop height however even for a loop that is twice as high as the atmospheric scale height it is small enough to satisfy observational constraints Hence we conclude that nonreflective propagation of kink waves is possible in a fairly realistic model of coronal loops


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  1. Coronal Mass Ejections from the Same Active Region Cluster: Two Different Perspectives
  2. Gnevyshev Peaks in the CME Average Speeds in Cycle 23
  3. Mapping Solar Wind Streams from the Sun to 1 AU: A Comparison of Techniques
  4. High-Energy Emission from a Solar Flare in Hard X-rays and Microwaves
  5. Estimating Electric Current Densities in Solar Active Regions
  6. Total Solar Irradiance Measurement and Modelling during Cycle 23
  7. Reduced Coronal Emission Above Large Isolated Sunspots
  8. Observational Signatures of Impulsively Heated Coronal Loops: Power-Law Distribution of Energies
  9. Transition of the Sunspot Number from Zurich to Brussels in 1980: A Personal Perspective
  10. Very High-Resolution Solar X-Ray Imaging Using Diffractive Optics
  11. Tracking of Coronal White-Light Events by Texture
  12. An Interpretation of a Possible Mechanism for the First Ground-Level Enhancement of Solar Cycle 24
  13. Velocities and Temperatures of an Ellerman Bomb and Its Associated Features
  14. Kink Wave Propagation in Thin Isothermal Magnetic Flux Tubes
  15. Ensemble Modeling of CMEs Using the WSA–ENLIL+Cone Model
  16. A Simple Way to Estimate the Soft X-ray Class of Far-Side Solar Flares Observed with STEREO/EUVI
  17. Multi-spacecraft Observations of CIR-Associated Ion Increases During the Ulysses 2007 Ecliptic Crossing
  18. Numerical Simulation of a Solar Active Region. I: Bastille Day Flare
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  20. Variations in Ratio and Correlation of Solar Magnetic Fields in the Fe i 525.02 nm and Na i 589.59 nm Lines According to Mount Wilson Measurements During 2000 – 2012
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  22. A Search for Helioseismic Signature of Emerging Active Regions
  23. Subsecond (0.1 s) Pulsations in the 11 April 2001 Radio Event
  24. Global Heliospheric Parameters and Cosmic-Ray Modulation: An Empirical Relation for the Last Decades
  25. Modeling of EIS Spectrum Drift from Instrumental Temperatures
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  27. Emission of Type II Radio Bursts – Single-Beam Versus Two-Beam Scenario
  28. Historical Heliophysical Series of the Ebro Observatory
  29. Dynamics of an Erupting Arched Magnetic Flux Rope in a Laboratory Plasma Experiment
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  33. Design and Ground Calibration of the Helioseismic and Magnetic Imager (HMI) Instrument on the Solar Dynamics Observatory (SDO)
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  35. Evidence that Synchrotron Emission from Nonthermal Electrons Produces the Increasing Submillimeter Spectral Component in Solar Flares

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