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The velocity pattern of weak solar magnetic fields

Wang, H. and Zirin, H. (1988) The velocity pattern of weak solar magnetic fields. Solar Physics, 115 (2). pp. 205-219. ISSN 0038-0938. doi:10.1007/bf00148723.

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We have measured the proper motion of magnetic elements on the quiet Sun by means of local correlation tracking. The existence of a pattern in the intranetwork (IN) flow is confirmed. This velocity field is consistent with the direct Doppler measurement of the horizontal component of the supergranular velocity field. The IN elements generally move toward the network boundaries. By tracking test points we confirm that the magnetic elements converge in areas corresponding to the magnetic network. But because the IN elements are of random polarity, they cannot contribute to the growth or maintenance of the magnetic network. By calculating the cross correlation between the magnetogram and Dopplergram, we confirm that the supergranule boundaries and the magnetic network are roughly correlated.

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Wang, H.0000-0002-5233-565X
Additional Information:© 1988 Kluwer Academic Publishers. Provided by the NASA Astrophysics Data System. Received 23 October 1987. We are indebted to Dr S. F. Martin for many helpful comments, discussion and suggestions. We wish to thank the Big Bear staff for the support in observation, Dr B. Popp for his computer programs and J. Nenow for processing films. Also we are grateful for the assistance from Kitt Peak Observatory, especially Drs J. Harvey and K. Harvey for their valuable suggestions and F. Recely for his help in observation. This work is supported by NSF under grant ATM-8513577 and NASA under grant NGL 05 002 034.
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NASANGL 05 002 034
Subject Keywords:Magnetic Field; Velocity Field; Cross Correlation; Horizontal Component; Test Point
Issue or Number:2
Record Number:CaltechAUTHORS:20200602-075231064
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Official Citation:Wang, H., Zirin, H. The velocity pattern of weak solar magnetic fields. Sol Phys 115, 205–219 (1988).
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:103630
Deposited By: Tony Diaz
Deposited On:02 Jun 2020 15:57
Last Modified:16 Nov 2021 18:23

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