Periodic change of solar differential rotation

S. I. Itoh; K. Itoh; A. Yoshizawa; N. Yokoi

doi:10.1086/426044

Periodic change of solar differential rotation

S. I. Itoh
, K. Itoh
, A. Yoshizawa
, N. Yokoi

Division of Nuclear Fusion Dynamics

Research output: Contribution to journal › Article › peer-review

11 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 language	English
Pages (from-to)	1044-1048
Number of pages	5
Journal	Astrophysical Journal
Volume	618
Issue number	2 I
DOIs	https://doi.org/10.1086/426044
Publication status	Published - Jan 10 2005

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

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10.1086/426044

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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.",

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AU - Itoh, S. I.

AU - Itoh, K.

AU - Yoshizawa, A.

AU - Yokoi, N.

PY - 2005/1/10

Y1 - 2005/1/10

N2 - 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.

AB - 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.

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JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 2 I

ER -

Periodic change of solar differential rotation

Abstract

All Science Journal Classification (ASJC) codes

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