FAST SAUSAGE MODES IN MAGNETIC TUBES WITH CONTINUOUS TRANSVERSE PROFILES: EFFECTS OF A FINITE PLASMA BETA
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摘要
<正>While standing fast sausage modes in flare loops are important for interpreting quasi-periodic pulsations(QPPs)in solar flares,it is unclear as to how they are influenced by the combined effects of a continuous transverse structuring and a finite internal plasma beta(βi).We derive a generic dispersion relation(DR)governing linear sausage waves in straight magnetic tubes for which plasma pressure is not negligible and the density and temperature inhomogeneities of essentially arbitrary form take place in a layer of arbitrary width.
引文
[1]S.X.Chen,B.Li,M.Xiong,H.Yu,and M.Z.Guo,Ap J 812,22(2015)
    [2]M.Z.Guo,S.X.Chen,B.Li,L.D.Xia,and H.Yu,So Ph 291,877(2016).

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