Benchmarking atomic data for astrophysics: Fe VIII EUV lines
Benchmarking atomic data for astrophysics: Fe VIII EUV lines
复制标题
天体物理学原子数据基准:Fe VIII EUV 线
DOI:
10.1051/0004-6361/200912557
复制
发表时间:
2009
影响因子:
6.5
通讯作者:
Del Zanna G
中科院分区:
文献类型:
--
作者:
Del Zanna G
The EUV spectrum of $\ion{Fe}{viii}$ is reviewed, using new solar observations from the Hinode EUV Imaging Spectrometer (EIS), together with older solar and laboratory data. The most up-to-date scattering calculations are benchmarked against these experimental data, with the use of a large atomic structure calculation. Once adjustments are made to the excitation rates, good agreement is found between calculated and observed line intensities. All previous line identifications have been re-assessed. Several lines are identified here for the first time, most notably the strong decays from the 3s23p53d24Djlevels. It is shown that they provide a new, important diagnostic of electron temperature for the upper transition region. The temperatures obtained at the base of solar coronal loops are lower (logT[K] = 5.5) than those predicted by assuming ionization equilibrium (logT[K] = 5.6), however firm measurements will only be possible once better scattering calculations are available, and the EIS radiometric calibration is properly assessed.
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影响因子:
64.8
作者:
A. Gabriel;B. Fawcett;C. Jordan
通讯作者:
C. Jordan
影响因子:
6.5
作者:
G. Zanna
通讯作者:
G. Zanna
影响因子:
--
作者:
P. Kruger;S. G. Weissberg
通讯作者:
S. G. Weissberg
DOI:
10.1086/156151
发表时间:
1978
期刊:
The Astrophysical Journal
影响因子:
--
作者:
J. Raymond;A. Dupree
通讯作者:
A. Dupree
DOI:
--
发表时间:
2021
期刊:
影响因子:
--
作者:
中沢敦夫;宮野裕;今村栄一;広島市立大学国際学部多文化共生プログラム(編)
通讯作者:
広島市立大学国際学部多文化共生プログラム(編)