Periodic change of solar differential rotation

Sanae Itoh, K. Itoh, A. Yoshizawa, N. Yokoi

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

The periodic oscillation of the inhomogeneous rotation of the Sun is studied by use of the MHD dynamo theory. There exists a turbulent electromotive force that is driven by the vorticity of the flow (i.e., the γ dynamo). In addition, its counterpart exists in the vorticity equation, that is, the rotation is induced by an inhomogeneous magnetic field in turbulent plasmas through the γ-dynamo process. Based on this dynamo theory, a periodic change of solar differential rotation with a period of 11 yr is theoretically explained under the prescribed solar magnetic cycle. The predicted amplitude is compared with observations.

Original languageEnglish
Pages (from-to)1044-1048
Number of pages5
JournalAstrophysical Journal
Volume618
Issue number2 I
DOIs
Publication statusPublished - Jan 10 2005

Fingerprint

dynamo theory
geodynamo
vorticity
vorticity equations
electromotive forces
sun
oscillation
magnetic field
plasma
oscillations
cycles
magnetic fields

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Itoh, S., Itoh, K., Yoshizawa, A., & Yokoi, N. (2005). Periodic change of solar differential rotation. Astrophysical Journal, 618(2 I), 1044-1048. https://doi.org/10.1086/426044

Periodic change of solar differential rotation. / Itoh, Sanae; Itoh, K.; Yoshizawa, A.; Yokoi, N.

In: Astrophysical Journal, Vol. 618, No. 2 I, 10.01.2005, p. 1044-1048.

Research output: Contribution to journalArticle

Itoh, S, Itoh, K, Yoshizawa, A & Yokoi, N 2005, 'Periodic change of solar differential rotation', Astrophysical Journal, vol. 618, no. 2 I, pp. 1044-1048. https://doi.org/10.1086/426044
Itoh S, Itoh K, Yoshizawa A, Yokoi N. Periodic change of solar differential rotation. Astrophysical Journal. 2005 Jan 10;618(2 I):1044-1048. https://doi.org/10.1086/426044
Itoh, Sanae ; Itoh, K. ; Yoshizawa, A. ; Yokoi, N. / Periodic change of solar differential rotation. In: Astrophysical Journal. 2005 ; Vol. 618, No. 2 I. pp. 1044-1048.
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