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SIMULTANEOUS TRANSVERSE OSCILLATIONS OF A PROMINENCE AND A FILAMENT AND LONGITUDINAL OSCILLATION OF ANOTHER FILAMENT INDUCED BY A SINGLE SHOCK WAVE
Shen, Yuandeng; Liu, Ying D.; Chen, P. F.; Ichimoto, Kiyoshi; Shen, YD (reprint author), Chinese Acad Sci, Yunnan Observ, Kunming 650011, Peoples R China.
Department空间科学部
Source PublicationASTROPHYSICAL JOURNAL
2014
Volume795Issue:2Pages:130
ISSN0004-637X
Language英语
AbstractWe present the first stereoscopic and Doppler observations of simultaneous transverse oscillations of a prominence and a filament and longitudinal oscillation of another filament launched by a single shock wave. Using H alpha Doppler observations, we derive the three-dimensional oscillation velocities at different heights along the prominence axis. The results indicate that the prominence has a larger oscillation amplitude and damping time at higher altitude, but the periods at different heights are the same (i.e., 13.5 minutes). This suggests that the prominence oscillates like a linear vertical rigid body with one end anchored on the Sun. One of the filaments shows weak transverse oscillation after the passing of the shock, which is possibly due to the low altitude of the filament and the weakening (due to reflection) of the shock wave before the interaction. Large-amplitude longitudinal oscillation is observed in the other filament after the passing of the shock wave. The velocity amplitude and period are about 26.8 kms(-1) and 80.3 minutes, respectively. We propose that the orientation of a filament or prominence relative to the normal vector of the incoming shock should be an important factor for launching transverse or longitudinal filament oscillations. In addition, the restoring forces of the transverse prominence are most likely due to the coupling of gravity and magnetic tension of the supporting magnetic field, while that for the longitudinal filament oscillation is probably the resultant force of gravity and magnetic pressure.
Indexed BySCI
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/4469
Collection空间科学部
Corresponding AuthorShen, YD (reprint author), Chinese Acad Sci, Yunnan Observ, Kunming 650011, Peoples R China.
Recommended Citation
GB/T 7714
Shen, Yuandeng,Liu, Ying D.,Chen, P. F.,et al. SIMULTANEOUS TRANSVERSE OSCILLATIONS OF A PROMINENCE AND A FILAMENT AND LONGITUDINAL OSCILLATION OF ANOTHER FILAMENT INDUCED BY A SINGLE SHOCK WAVE[J]. ASTROPHYSICAL JOURNAL,2014,795(2):130.
APA Shen, Yuandeng,Liu, Ying D.,Chen, P. F.,Ichimoto, Kiyoshi,&Shen, YD .(2014).SIMULTANEOUS TRANSVERSE OSCILLATIONS OF A PROMINENCE AND A FILAMENT AND LONGITUDINAL OSCILLATION OF ANOTHER FILAMENT INDUCED BY A SINGLE SHOCK WAVE.ASTROPHYSICAL JOURNAL,795(2),130.
MLA Shen, Yuandeng,et al."SIMULTANEOUS TRANSVERSE OSCILLATIONS OF A PROMINENCE AND A FILAMENT AND LONGITUDINAL OSCILLATION OF ANOTHER FILAMENT INDUCED BY A SINGLE SHOCK WAVE".ASTROPHYSICAL JOURNAL 795.2(2014):130.
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