Spatial and temporal variations of EUV coronal bright points
Results are reported of an analysis of Skylab observations of coronal bright points made in EUV spectral lines formed in the chromosphere, chromospheric-coronal transition region, and corona. The most important result is that the observed bright points exhibited large variations in EUV emission over...
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| Veröffentlicht in: | Solar physics 1981-01, Vol.69 (1), p.77-97 |
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| container_end_page | 97 |
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| container_title | Solar physics |
| container_volume | 69 |
| creator | Habbal, Shadia R. Withbroe, George L. |
| description | Results are reported of an analysis of Skylab observations of coronal bright points made in EUV spectral lines formed in the chromosphere, chromospheric-coronal transition region, and corona. The most important result is that the observed bright points exhibited large variations in EUV emission over time scales as short as 5.5 min, the temporal resolution of the data. In most cases, strong enhancements in the coronal line were accompanied by strong enhancements in the chromospheric and transition region lines. The intensity variations appear to occur within substructures of the bright points, which probably consist of miniature loops evolving on time scales of a few minutes. Coronal cooling times derived from the data are consistent with an intermittent, impulsive coronal heating mechanism for bright points. |
| doi_str_mv | 10.1007/BF00151257 |
| format | Article |
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| ispartof | Solar physics, 1981-01, Vol.69 (1), p.77-97 |
| issn | 0038-0938 1573-093X |
| language | eng |
| recordid | cdi_proquest_miscellaneous_18384446 |
| source | Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; SpringerLink Journals - AutoHoldings |
| title | Spatial and temporal variations of EUV coronal bright points |
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