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Seismology of solar spicules based on Hinode/SOT observations
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نویسنده
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Abbasvand Vahid ,Ebadi Hossein ,Fazel Zahra
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منبع
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iranian journal of astronomy and astrophysics - 2015 - دوره : 2 - شماره : 1 - صفحه:77 -83
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چکیده
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We analyze the time series of ca ii h-line obtained from hinode/sot on the solar limb. the time-distance analysis shows that the axis of spicule undergos quasi-periodic transverse displacement. we determined the period of transverse displacement as ~ 40 - 150 ± 8 s and the mean amplitude as ~ 0.1 – 0.5 arc sec. for the oscillation wavelength of ? ~ 1/0.06 arc sec ~ 11500 km, the estimated kink speed is ~ 13-83 km s -1. we obtained the magnetic field strength in spicules as b0 = 2 – 12.5 ± 1 g and the energy flux as 7 - 227 jm -2 s -1.
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کلیدواژه
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ISM: Sun ,ISM: spicules ,ISM: Dynamic parameters
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آدرس
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university of tabriz, Astrophysics Departartment, Physics Faculty, University of Tabriz, Tabriz, Iran, ایران, university of tabriz, Astrophysics Departartment, Physics Faculty, University of Tabriz, Tabriz, Iran, ایران, university of tabriz, Astrophysics Departartment, Physics Faculty, University of Tabriz, Tabriz, Iran, ایران
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Authors
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