Investigation of the N S asymmetry of the differential rotation of Hα filaments and large-scale magnetic elements

904 9 3921 1 10795 document 3921 Kukhianidze_Gig_Jap_N-S_Advans in space research_2007.pdf application/pdf 74196bcec9083b232a8882c448bf2edd MD5 178743 2014-02-04 12:31:37 http://eprints.iliauni.edu.ge/904/1/Kukhianidze_Gig_Jap_N-S_Advans%20in%20space%20research_2007.pdf 904 1 1 application/pdf text en public

Kukhianidze_Gig_Jap_N-S_Advans in space research_2007.pdf

3922 2 10803 document 3922 lightbox.jpg image/png 8ea5fe92e5d85b3d4af491f0d332f076 MD5 59813 2014-02-04 12:41:54 http://eprints.iliauni.edu.ge/904/2/lightbox.jpg 904 2 2 image/png other Thumbnails conversion from text to thumbnail_lightbox ge public

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http://eprints.org/relation/isVersionOf http://eprints.iliauni.edu.ge/id/document/3921 http://eprints.org/relation/isVolatileVersionOf http://eprints.iliauni.edu.ge/id/document/3921 http://eprints.org/relation/issmallThumbnailVersionOf http://eprints.iliauni.edu.ge/id/document/3921 archive 134 disk0/00/00/09/04 2014-02-04 15:26:02 2015-03-27 10:04:34 2014-02-04 15:26:02 article show Gigolashvili M. Japaridze D. Mdzinarishvili T. Chargeishvili K. Kukhianidze V. vasil.kukhianidze@iliauni.edu.ge Investigation of the N S asymmetry of the differential rotation of Hα filaments and large-scale magnetic elements pub QB QC public N S asymmetry, differential rotation, filaments, large-scale magnetic elements Studying solar rotation, its temporal variation and altitude dependence in the solar atmosphere is timely and important since it is closely related to the mechanism of solar activity. The aim of the present work is to investigate solar differential rotation using rotation rates of Hα filaments in 1957-1993 and those of compact elements of large-scale magnetic fields in 1966-1985. We verify the earlier finding that the differential rotation of both of these magnetic structures is north-south (N-S) asymmetric during the respective time intervals. We find that the N-S asymmetry of Hα filaments changes its sign during the 22-year cycle. The average rotation rate of compact magnetic elements with negative polarity depicts a 22-year oscillation both in the northern and southern hemisphere. Our statistical analysis did not reveal significant N-S asymmetry in the differential rotation of compact elements with positive polarity. Our results on the N-S asymmetry of Hα filaments and compact elements are somewhat controversial since they show opposite simultaneous N-S asymmetries. This may be due to their different heights in the solar atmosphere where radial differential rotation may cause changes in asymmetry. 2007-01-04 published Advances in Space Research 40 7 ELSEVIER 976-980 10.1016/j.asr.2007.03.103 TRUE