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| First Name * |
: |
Ajanta |
| Last Name * |
: |
Datta |
| Affiliation * |
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HKBK College Of Engineering |
| Abstract Type * |
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Poster |
| Title * |
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Study of Standing Oscillations in Coronal Plumes |
| Author(s) * |
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Ajanta Datta, Vaibhav Pant, Dipankar Banerjee |
| Abstract Session * |
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Thermal and magnetic coupling through the atmosphere |
| Abstract * |
: |
Coronal Plumes are radially expanding open magnetic structures. Plumes are important for their
contribution towards acceleration of solar wind. Plumes support propagating slow magneto-acoustic
waves, which are heavily damped. Thermal dissipation is a major player in wave damping, though it
is not the only one.
Standing waves are observed in mostly hot coronal loops and there are very few imaging
observations. Recently standing slow waves are reported from cool loops also. Standing slow mode
waves are a useful tool in coronal seismology.
In this study, we are reporting the evidence of standing slow mode wave in open plume from
imaging observations. Analysing the intensity variations from the AIA imaging data, we have
confirmed tthat, these intensity variations are due to standing oscillations. We have detected the
reflection height of these standing modes. We have also studied the density variation along the
plume to understand possible cause of reflection of wave along an open stucture. |
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