VARIATION OF GLOBAL AND LOCAL FLOWS IN THE SOLAR CONVECTION ZONE DURING ACTIVITY CYCLES 24 AND 25

Мұқаба

Дәйексөз келтіру

Толық мәтін

Ашық рұқсат Ашық рұқсат
Рұқсат жабық Рұқсат берілді
Рұқсат жабық Тек жазылушылар үшін

Аннотация

Convection, differential rotation, and meridional circulation of solar plasma are studied based on helioseismic data covering the period from May 2010 to August 2024, significantly prolonged compared to that previously considered. Depth variation in the spatial spectrum of convective motions indicates a superposition of differently scaled flows. The giant-cell-scale component of the velocity field demonstrates a tendency to form meridionally elongated (possibly banana-shaped) structures. The integrated spectral power of the flows is anticorrelated with the solar-activity level in the near-surface layers and positively correlates with it in deeper layers. An extended 22-year cycle of zonal flows (“torsional oscillations” of the Sun) and variations of the meridional flows are traced. A secondary meridional flow observed at the epoch of the maximum of Solar Cycle 24 to be directed equatorward in the subsurface layers is clearly manifest in Cycle 25.

Авторлар туралы

A. Getling

Lomonosov Moscow State University, Skobeltsyn Institute of Nuclear Physics

Email: a.getling@mail.ru
Moscow, Russia

A. Kosovichev

New Jersey Institute of Technology

Newark, USA

Әдебиет тізімі

  1. . S. Couvidat, J. Zhao, A.C. Birch, A.G. Kosovichev, T.L. Duvall, K. Parchevsky, and P.H. Scherrer, Solar Phys. 275(1–2), 357 (2012).
  2. J. Zhao, S. Couvidat, R.S. Bogart, K.V. Parchevsky, et al., Solar Phys. 275(1–2), 375 (2012).
  3. A.V. Getling, A.G. Kosovichev, and J. Zhao, Astrophys. J. Letters 908(2), id. L50 (2021).
  4. A.V. Getling and A.G. Kosovichev, Astrophys. J. 937(1), id. 41 (2022).
  5. W. Herschel, Proc. Roy. Society London Ser. I 1, 20 (1800).
  6. A.B. Hart, Monthly Not. Roy. Astron. Soc. 114, 17 (1954).
  7. R.B. Leighton, R.W. Noyes, and G.W. Simon, Astrophys. J. 135, 474 (1962).
  8. А.В. Гетлинг, А.А. Бучнев, Астрон. журн. 87(3), 286 (2010).
  9. L.J. November, J. Toomre, K.B. Gebbie, and G.W. Simon, Astrophys. J. Letters 245, L123 (1981).
  10. V. Bumba, R. Howard, and S.F. Smith, Astron. J. 69, 535 (1964).
  11. G.W. Simon and N.O. Weiss, Zeitschrift fur Astrophysik 69, 435 (1968).
  12. G.A. Glatzmaier and P.A. Gilman, Astrophys. J. Suppl. 45, 351 (1981).
  13. J.G. Beck, T.L. Duvall, and P.H. Scherrer, Nature 394(6694), 653 (1998).
  14. D.H. Hathaway, L. Upton, and O. Colegrove, Science 342(6163), 1217 (2013).
  15. F.H. Busse, Astrophys. J. 159, 629 (1970).
  16. F.H. Busse, Phys. Fluids 14, 1301 (2002).
  17. F.H. Busse and C.R. Carrigan, J. Fluid Mech. 62, 579 (1974).
  18. R. Muller, H. Auffret, T. Roudier, J. Vigneau, G.W. Simon, Z. Frank, R.A. Shine, and A.M. Title, Nature 356(6367), 322 (1992).
  19. M. Rieutord, T. Roudier, H.G. Ludwig, A. Nordlund, and R. Stein, Astron. and Astrophys. 377, L14 (2001).
  20. D.H. Hathaway and L.A. Upton, Astrophys. J. 908(2), id. 160 (2021).
  21. O.V. Shcheritsa, A.V. Getling, and O.S. Mazhorova, Phys. Letters A 382(9), 639 (2018).
  22. J.H. Jeans, Proc. Roy. Society London Ser. A 102, 554 (1923).
  23. R. Carrington, Observations of the Spots on the Sun: From November 9, 1853, to March 24, 1861, Made at Redhill (London: Williams and Norgate, 1863).
  24. H.W. Newton and M.L. Nunn, Monthly Not. Roy. Astron. Soc. 111, 413 (1951).
  25. H.B. Snodgrass, Astrophys. J. 270, 288 (1983).
  26. R. Howard, J.M. Adkins, J.E. Boyden, T.A. Cragg, T.S. Gregory, B.J. Labonte, S.P. Padilla, and L. Webster, Solar Phys. 83(2), 321 (1983).
  27. H.B. Snodgrass and R.K. Ulrich, Astrophys. J. 351, 309 (1990).
  28. N. Meunier, Astrophys. J. 527(2), 967 (1999).
  29. J. Zhao, A.G. Kosovichev, T.L. Duvall, Jr., Astrophys. J. Letters 607(2), L135 (2004).
  30. M.J. Thompson, J. Toomre, E.R. Anderson, H.M. Antia, et al., Science 272(5266), 1300 (1996).
  31. А.И. Лебединский, Астрон. журн. 18(1), 10 (1941).
  32. Л.Л. Кичатинов, Успехи физ. наук 175(5), 475 (2005).
  33. R. Howard and B.J. Labonte, Astrophys. J. Letters 239, L33 (1980).
  34. P.R. Wilson, R.C. Altrocki, K.L. Harvey, S.F. Martin, and H.B. Snodgrass, Nature 333(6175), 748 (1988).
  35. B.J. Labonte and R. Howard, Solar Phys. 75(1–2), 161 (1982).
  36. H.B. Snodgrass, Astrophys. J. Letters 383, L85 (1991).
  37. A.G. Kosovichev and V.V. Pipin, Astrophys. J. Letters 871(2), id. L20 (2019).
  38. R. Kippenhahn, Astrophys. J. 137, 664 (1963).
  39. T.L. Duvall, Jr., Solar Phys. 63(1), 3 (1979).
  40. R.W. Komm, R.F. Howard, and J.W. Harvey, Solar Phys. 147(2), 207 (1993).
  41. J. Zhao, R.S. Bogart, A.G. Kosovichev, T.L. Duvall, Jr., and T. Hartlep, Astrophys. J. Letters 774(2), id. L29 (2013).
  42. L. Gizon, R.H. Cameron, M. Pourabdian, Z.-C. Liang, D. Fournier, A.C. Birch, and C.S. Hanson, Science 368(6498), 1469 (2020).
  43. D.A. Haber, B.W. Hindman, J. Toomre, R.S. Bogart, R.M. Larsen, and F. Hill, Astrophys. J. 570(2), 855 (2002).
  44. J. Zhao and A.G. Kosovichev, Astrophys. J. 603(2), 776 (2004).
  45. V.V. Pipin and A.G. Kosovichev, Astrophys. J. 887(2), id. 215 (2019).
  46. V.V. Pipin, Geophys. and Astrophys. Fluid Dyn. 102(1), 21 (2008).

Қосымша файлдар

Қосымша файлдар
Әрекет
1. JATS XML
Жүктеу

© The Russian Academy of Sciences, 2025