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Observations of magnetic and kinetic helicity proxies

Published online by Cambridge University Press:  18 July 2013

Hongqi Zhang
Hongqi Zhang*
Affiliation:
Key Laboratory of Solar Activity, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012 email: [email protected]
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Abstract

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The helicity is important to present the basic topological configuration of magnetic field in solar atmosphere. The distribution of magnetic helicity in solar atmosphere is presented by means of the observational (vector) magnetograms. As the kinetic helicity in the solar subatmosphere can be inferred from the velocity field based on the technique of the helioseismology and used to compare with the magnetic helicity in the solar atmosphere, the observational helicities provide the important chance for the confirmation on the generation of magnetic fields in the subatmosphere and solar dynamo models also. In this paper, we present the observational magnetic and kinetic helicity in solar active regions and corresponding questions, except the relationship with solar eruptive phenomena.

Keywords

Sun: activity – Sun: magnetic fields – Sun: helicity
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 8 , Symposium S294: Solar and Astrophysical Dynamos and Magnetic Activity , August 2012 , pp. 13 - 24
Copyright
Copyright © International Astronomical Union 2013 

References

Abramenko, V. I., Wang, T., & Yurchishin, V. B., 1996, Solar Phys., 168, 75 Google Scholar
Bao, S. & Zhang, H., 1998, Astrophys. J, 496, L43 Google Scholar
Bao, S., Zhang, H., Ai, G., & Zhang, M., 1999, Astron. Astrophys., 139, 311 Google Scholar
Bao, S. D., Ai, G. X., & Zhang, H. Q., 2000, JApA, 21, 303 Google Scholar
Berger, M. A. & Field, G. B., 1984, JFM 147, 133 Google Scholar
Berger, M. & Ruzmaikin, A. 2000, JGR, 10510481Google Scholar
Brandenburg, A., Dobler, W., & Subramanian, K., 2002, AN, 323, 99 Google Scholar
Brandenburg, A. & Subramanian, K., 2005, PhR, 417, 1 Google Scholar
Chae, J., 2001, Astrophys. J, 560, L95 Google Scholar
Chatterjee, P., Nandy, D., & Choudhuri, A. R., 2004, A&A, 427, 1019 Google Scholar
Chen, J, Bao, S., & Zhang, H., 2007, Solar Phys., 242, 65C Google Scholar
Choudhuri, A. R., Chatterjee, P., & Nandy, D., 2004, Astrophys. J, 615, L57 CrossRefGoogle Scholar
Démoulin, P., & Berger, M. A., 2003, Solar Phys., 215, 203 CrossRefGoogle Scholar
Deng, Y., Wang, J., Yan, Y., & Zhang, J., 2001, Solar Phys., 204, 11 Google Scholar
Ding, Y. J., Hong, Q. F., & Wang, H. Z., 1987, Solar Phys., 107, 221 Google Scholar
Gao, Y., Zhang, H., & Zhao, J., 2009, MNRAS, 394, L79 Google Scholar
Gao, Y., Zhao, J. & Zhang, H. 2012, in this proceedingsGoogle Scholar
Georgoulis, M. K., Rust, D. M., Pevtsov, A. A., Bernasconi, P. N., & Kuzanyan, K. M., 2009, Astrophys. J., 705, L48 CrossRefGoogle Scholar
Hagino, M. & Sakurai, T., 2004, PASJ, 56, 831 Google Scholar
Hagino, M. & Sakurai, T., 2005, PASJ, 57, 481 CrossRefGoogle Scholar
Hale, G. E., Ellerman, F., Nicholsin, S. B., & Joy, A. H., 1919, Astrophys. J., 49, 153 CrossRefGoogle Scholar
Jeong, H. & Chae, J., 2007, Astrophys. J., 671, 1022 CrossRefGoogle Scholar
Jiang, J., Choudhuri, A. R., & Wang, J., 2007, Solar Phys., 245, 19 Google Scholar
Keinigs, R. K., 1983, PhFl, 26, 2558 Google Scholar
Keinigs, R. & Gerwin, , Richard, A., 1986, IEEE Transactions 14 Issue 6, 858 Google Scholar
Kleeorin, N. & Rogachevskii, I., 1999, PhRvE, 59, 6724 Google Scholar
Kleeorin, N., Kuzanyan, K., Moss, D., Rogachevskii, I., Sokoloff, D., & Zhang, H., 2003, A&A, 409, 1097 Google Scholar
Kusano, K., Maeshiro, T., Yokoyama, T., & Sakurai, T., 2002, Astrophys. J, 577, 501 Google Scholar
Kuzanyan, K. M., Lamburt, V. G., Zhang, H., & Bao, S., 2003, ChJAA, 3, 257 Google Scholar
Kuzanyan, K. M., Pipin, V. V., & Zhang, H., 2007, AdSpR, 39, 1694 Google Scholar
LaBonte, B. J., Georgoulis, M. K., & Rust, D. M., 2007, Astrophys. J, 671, 955 CrossRefGoogle Scholar
Liu, J. & Zhang, H., 2006, Solar Phys., 234, 21 CrossRefGoogle Scholar
Longcope, D. W., Fisher, G. H., & Pevtsov, A. A., 1998, Astrophys. J, 507, 417 CrossRefGoogle Scholar
López Fuentes, M. C., Démoulin, P., Mandrini, C. H. & van Driel-Gesztelyi, L., 2000, Astrophys. J, 544, 540 Google Scholar
Pariat, E., Démoulin, P., & Berger, M. A., 2005, Astron. Astrophys., 439, 1191 CrossRefGoogle Scholar
Parker, E., 1955, Astrophys. J, 122, 293 Google Scholar
Pevtsov, A. A., 2000, Astrophys. J, 531, 553 Google Scholar
Pevtsov, A. A., Canfield, R. C., & Metcalf, T. R., 1994, Astrophys. J, 425, L117 CrossRefGoogle Scholar
Pevtsov, A. A., Canfield, R. C., & Metcalf, T. R., 1995, Astrophys. J, 440, L109 Google Scholar
Pevtsov, A. A. & Latushko, S. M., 2000, Astrophys. J, 528, 999 CrossRefGoogle Scholar
Pevtsov, A. A., Dun, J. P., & Zhang, H., 2006, Solar Phys., 234, 203 Google Scholar
Pevtsov, A. A., Canfield, R. C., Sakurai, T., & Hagino, M., 2008, Astrophys. J, 677, 719 Google Scholar
Pipin, V., Kuzanyan, K., Zhang, H., & Kosovichev, A., 2011, Astrophys. J, 743, 160 Google Scholar
Pouquet, A., Frisch, U., & Leorat, J., 1976, JFM, 77, 321 CrossRefGoogle Scholar
Rädler, K., & Rheinhardt, M., 2007, GApFD., 101, 117 Google Scholar
Rust, D. M. & Kumar, A., 1996, Astrophys. J, 464, L199 Google Scholar
Rüdiger, G., Pipin, V. V., & Belvedére, G., 2001, Solar Phys., 198, 241 Google Scholar
Rüdiger, G., Kitchatinov, L. L., & Brandenburg, A., 2011, Solar Phys., 269, 3 Google Scholar
Seehafer, N., 1990, Solar Phys., 125, 219 Google Scholar
Seehafer, N., 1994, Astron. Astrophys., 284, 593 Google Scholar
Sokoloff, D. 2007, Plasma Phys. Control. Fusion, 49, 447 Google Scholar
Sokoloff, D., Zhang, H., Kuzanyan, K. M., Obridko, V. N., Tomin, D. N., & Tutubalin, V. N., 2008, Solar Phys., 248, 17 CrossRefGoogle Scholar
Su, J. T., Sakurai, T., Suematsu, Y., Hagino, M., & Liu, Y., 2009, Astrophys. J, 697, L103 Google Scholar
Taylor, J. B., 1986, RvMP, 58, 741 Google Scholar
Tian, L., Bao, S., Zhang, H., & Wang, H., 2001, A&A, 374, 294 Google Scholar
Tian, L. & Alexander, D., 2009, Astrophys. J, 695, 1012 Google Scholar
Tiwari, S. K., Venkatakrishnan, P., & Sankarasubramanian, K., 2009, Astrophys. J, 702, L133 Google Scholar
Wang, J., 1996, Solar Phys., 163, 319 Google Scholar
Wang, C. & Zhang, M., 2010, Astrophys. J, 720, 632 Google Scholar
Welsch, B. T., & Longcope, D. W., 2003, Astrophys. J, 588, 620 CrossRefGoogle Scholar
Woltjer, L., 1958a, Proc. Natl. Acad. Sci. USA, 44, 489 Google Scholar
Woltjer, L.: 1958b, Proc. Natl. Acad. Sci. USA, 44, 833 Google Scholar
Venkatakrishnan, P., & Tiwari, S., 2009, Astrophys. J, 706, L114 Google Scholar
Xu, H., Gao, Y., Zhang, H., Sakurai, T., Pevtsov, A. A., & Sokoloff, D., 2007, AdSpR, 39, 1715 Google Scholar
Xu, H., Gao, Y., Popova, E. P., Nefedov, S. N., Zhang, H., & Sokoloff, D. D., 2009, ARep, 53, 160 Google Scholar
Xu, H., Gao, Y., Zhang, H., Sakurai, T., Hagino, M., Sokoloff, D., & Pevtsov, A., 2012, PASJ, 64, 54 Google Scholar
Yang, S., Zhang, H., & Büchner, J., 2009, A&A 502, 333 Google Scholar
Yang, S., & Zhang, H., 20012, Astrophys. J, 758, 61 Google Scholar
Yang, X., Zhang, H., Gao, Y., & Guo, J., Lin, G., 2012, Solar Phys., 280, 165 Google Scholar
Yokoyama, M. & Masuda, S., 2009, Solar Phys., 254, 285 Google Scholar
Yokoyama, M. & Masuda, S., 2010, Solar Phys., 263, 135 Google Scholar
Zhang, H., 2001, MNRAS, 326, 57 CrossRefGoogle Scholar
Zhang, H., 2006a, ChJAA, 6, 96 Google Scholar
Zhang, H., 2010, Astrophys. J., 716, 1493 Google Scholar
Zhang, H., 2012, MNRAS, 419, 799 Google Scholar
Zhang, H. & Bao, S. 1998, Astron. Astrophys., 339, 880 Google Scholar
Zhang, H., Sokoloff, D., Rogachevskii, I., Moss, D., Lamburt, V., Kuzanyan, K., & Kleeorin, N., 2006, MNRAS, 365, 276 CrossRefGoogle Scholar
Zhang, H., Sakurai, T., Pevtsov, A., Gao, Y., Xu, H., Sokoloff, D., & Kuzanyan, K., 2010a, MNRAS, 402, L30 Google Scholar
Zhang, H., Yang, S., Gao, Y., Su, J., Sokoloff, D. D., & Kuzanyan, K., 2010b, Astrophys. J., 719, 1955 CrossRefGoogle Scholar
Zhang, H., Moss, D., Kleeorin, N., Kuzanyan, K., Rogachevskii, I., Sokoloff, D., Gao, Y., & Xu, H., 2012, Astron. Astrophys., 751, 47 Google Scholar
Zhang, M., 2006b, Astrophys. J, 646, L85 Google Scholar
Zhang, Y., Liu, J., & Zhang, H., 2008, Solar Phys., 247, 39 Google Scholar
Zhao, J. 2004, Chap. 5, PhD Thesis, Stanford Univ.Google Scholar
Zhao, J. & Kosovichev, A. G., 2003, Astrophys. J, 591, 446 Google Scholar
Zhao, J., Couvidat, S., Bogart, R. S., Parchevsky, K. V., Birch, A. C., Duvall, T. L. Jr., Beck, J. G., Kosovichev, A. G., & Scherrer, P. H. 2012, Solar Phys., 275, 375 Google Scholar
Zhao, M. Y., Wang, X. F., & Zhang, H. Q., 2011, Solar Phys., 270, 23 Google Scholar