Temperature and mass estimation of erupting plasma associated with coronal mass ejections observed by Hinode/XRT and SDO/AIA
Abstract
We investigate the temperature and mass of erupting plasma observed in X-ray and EUV, which are associated with coronal mass ejections (CMEs) and X-class flares. Hinode/XRT observed the erupting hot plasma in a few passbands, which allows us to determine the temperature of the plasma using a filter ratio method. SDO/AIA observed the erupting plasma in EUV passbands. We estimate the temperatures and emission measures of the erupting plasma in EUV using a differential emission measure method. One of these observations shows an eruptive plasma with a loop-like structure in X-ray and EUV. The temperature of the erupting plasma in X-ray is about 13 MK by the filter ratio method. The estimated mass of this erupting plasma in X-ray is similar to that in EUV. A couple of events are associated with the eruptions of prominences as absorption features in EUV in addition to hot plasma eruption. One event shows that the absorption features change to emission features at the beginning of their eruptions in all EUV wavelengths of SDO/AIA. By estimating the temperature and mass of the erupting plasmas, we discuss the heating of the plasmas associated with coronal mass ejections in the low corona.
- Publication:
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American Astronomical Society Meeting Abstracts #224
- Pub Date:
- June 2014
- Bibcode:
- 2014AAS...22421836L