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NASA Technical Reports Server (NTRS) 19860015167: On the formation ... |
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by NASA Technical Reports Server (NTRS) |
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A theoretical study of the formation of a coronal cavity |
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and its relation to a quiescent prominence is presented. |
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It is argued that the formation of a cavity is initiated |
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by the condensation of plasma which is trapped by the |
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coronal magnetic field in a closed streamer and which |
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then flows down to the chromosphere along the field lines |
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due to lack of stable magnetic support against gravity. |
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The existence of a coronal cavity depends on the coronal |
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magnetic field strength; with low strength, the plasma |
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density is not high enough for condensation to occur. |
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Furthermore, we suggest that prominence and cavity |
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material is supplied from the chromospheric level. |
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Whether a coronal cavity and a prominence coexist depends |
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on the magnetic field configuration; a prominence |
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requires stable magnetic support. |
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Date Published: 2016-09-17 09:09:03 |
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Identifier: NASA_NTRS_Archive_19860015167 |
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Item Size: 6510808 |
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Language: english |
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Media Type: texts |
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