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Reconstruction of the Filament Properties, Based on Centenarian Daily Observations of the Sun in Hα Line

Published online by Cambridge University Press:  24 July 2018

Kseniya A. Tlatova ,
Valeriya Vasil’eva  and
Andrey Tlatov
Kseniya A. Tlatova
Affiliation:
Kislovodsk mountain astronomical station of the Pulkovo observatory, 357700, Gagarina str. 100Russia email: k.tlatova@mail.ru
Valeriya Vasil’eva
Affiliation:
Kislovodsk mountain astronomical station of the Pulkovo observatory, 357700, Gagarina str. 100Russia email: k.tlatova@mail.ru
Andrey Tlatov
Affiliation:
Kislovodsk mountain astronomical station of the Pulkovo observatory, 357700, Gagarina str. 100Russia email: k.tlatova@mail.ru Kalmyk State University, Elista, Russia
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Abstract

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Preliminary results of distinguishing solar filaments on daily observation data at the Hα spectral line of the Kodaikanal Solar Observatory (1912-2002) are presented.

To distinguish the boundaries of solar filaments, methods have been developed, based on automatic procedures for distinguishing low-contrast objects on the solar disk as well as on editing the boundaries of selected structures in semi-automatic mode. An analysis of solar filaments’ characteristics has been performed. We are considered variation of the average tilt-angle and the radius of curvature of the filaments in 15-23 cycles of activity.

Keywords

Sunsolar filamentslong-term variations
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 13 , Symposium S335: Space Weather of the Heliosphere: Processes and Forecasts , July 2017 , pp. 187 - 190
Copyright
Copyright © International Astronomical Union 2018 

References

Fuller, N., Aboudarham, J. & Bentley, R. D. 2005, Solar Phys., 227, 61Google Scholar
Li, K. J. 2010, MNRAS, 405, 1040Google Scholar
Hao, Q., Fang, C., Cao, W. & Chen, P. F. 2015, Astrophysical Journal Supplement Series, 221, 33Google Scholar
Makarov, V. I. & Tlatov, A. G. 2000, Astronomy Reports, 44, 759Google Scholar
McIntosh, P. S. 1972, Reviews of Geophysics and Space Physics, 10, 837CrossRefGoogle Scholar
Mouradian, Z. & Soru-Escaut, I. 1994, Astrop.and Astroph., 290, 279Google Scholar
Tlatov, A. G. 2009 Solar Phys., 260, 465Google Scholar
Tlatov, A. G., Kuzanyan, K. M. & Vasil’yeva, V. V. 2016, Solar Phys., 291, 1115Google Scholar
Tlatov, A. G., Vasilieva, V. V., Makarova, V. V. & Otkidychev, P. A. 2014 Solar Phys., 289, 1403Google Scholar