Issues

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2008

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November

  

Reviews of topical problems


Coronal magnetic loops

 a,  b
a Federal Research Center A.V. Gaponov-Grekhov Institute of Applied Physics of the Russian Academy of Sciences, ul. Ulyanova 46, Nizhny Novgorod, 603000, Russian Federation
b The Central Astronomical Observatory of the Russian Academy of Sciences at Pulkovo, Pulkovskoe shosse 65/1, St. Petersburg, 196140, Russian Federation

The goal of this review is to outline some new ideas in the physics of coronal magnetic loops, the fundamental structural elements of the atmospheres of the Sun and flaring stars, which are involved in phenomena such as stellar coronal heating, flare energy release, charged particle acceleration, and the modulation of optical, radio, and X-ray emissions. The Alfvén — Carlqvist view of a coronal loop as an equivalent electric circuit allows a good physical understanding of loop processes. Describing coronal loops as MHD-resonators explains various ways in which flaring emissions from the Sun and stars are modulated, whereas modeling them by magnetic mirror traps allows one to describe the dynamics and emission of high-energy particles. Based on these approaches, loop plasma and fast particle parameters are obtained and models for flare energy release and stellar corona heating are developed.

Fulltext pdf (2 MB)
Fulltext is also available at DOI: 10.1070/PU2008v051n11ABEH006657
PACS: 52.35.−g, 96.60.−j, 97.10.Sj (all)
DOI: 10.1070/PU2008v051n11ABEH006657
URL: https://ufn.ru/en/articles/2008/11/b/
000264020300002
2-s2.0-68149161150
2008PhyU...51.1123Z
Citation: Zaitsev V V, Stepanov A V "Coronal magnetic loops" Phys. Usp. 51 1123–1160 (2008)
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Оригинал: Зайцев В В, Степанов А В «Корональные магнитные арки» УФН 178 1165–1204 (2008); DOI: 10.3367/UFNr.0178.200811b.1165

References (212) Cited by (64) Similar articles (20) ↓

  1. A.T. Altyntsev, N.S. Meshalkina et alSubsecond pulses in microwave emission from the Sun66 691–703 (2023)
  2. B.P. Filippov “Mass ejections from the solar atmosphere62 847–864 (2019)
  3. A.Yu. Potekhin “The physics of neutron stars53 1235–1256 (2010)
  4. P.A. Gritsyk, B.V. Somov “Modern analytic models of acceleration and propagation of electrons in solar flares66 437–459 (2023)
  5. V.L. Ginzburg, V.V. Zheleznyakov, V.V. Zaitsev “Coherent radio-emission mechanisms and magnetic pulsar models12 378–398 (1969)
  6. M.I. Panasyuk, L.I. Miroshnichenko “Particle acceleration in space: a universal mechanism?65 379–405 (2022)
  7. G.D. Fleishman, V.F. Mel’nikov “Millisecond solar radio spikes41 1157–1189 (1998)
  8. M.V. Kuzelev, A.A. Rukhadze “Spontaneous and stimulated emission induced by an electron, electron bunch, and electron beam in a plasma51 989–1018 (2008)
  9. L.S. Ledentsov, B.V. Somov “Discontinuous plasma flows in magnetohydrodynamics and in the physics of magnetic reconnection58 107–133 (2015)
  10. A.V. Timofeev “Electromagnetic waves in a magnetized plasma near the critical surface47 555–582 (2004)
  11. A.M. Bykov, I.N. Toptygin “Instabilities of a multicomponent plasma with accelerated particles and magnetic field generation in astrophysical objects50 141–174 (2007)
  12. L.I. Men’shikov “Superradiance and related phenomena42 107 (1999)
  13. I.I. Metelskii, V.F. Kovalev, V.Yu. Bychenkov “Relativistically nonlinear resonant absorption and harmonic generation of electromagnetic radiation in an inhomogeneous plasma”, accepted
  14. A.V. Gurevich “Nonlinear effects in the ionosphere50 1091–1121 (2007)
  15. A.M. Fridman, D.V. Bisikalo “The nature of accretion disks of close binary stars: overreflection instability and developed turbulence51 551–576 (2008)
  16. V.E. Fortov, A.G. Khrapak et alDusty plasmas47 447–492 (2004)
  17. B.V. Alekseev “Physical fundamentals of the generalized Boltzmann kinetic theory of ionized gases46 139–167 (2003)
  18. V.N. Tsytovich “Self-organized dusty structures in a complex plasma under microgravity conditions: prospects for experimental and theoretical studies58 150–166 (2015)
  19. A.G. Zhilkin, D.V. Bisikalo, A.A. Boyarchuk “Flow structure in magnetic close binary stars55 115–136 (2012)
  20. N.I. Shakura, K.A. Postnov et alQuasi-spherical subsonic accretion in X-ray pulsars56 321–346 (2013)

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