The photoionization of Fe7+ and Fe8+ in the 2p-3d resonance energy region

	The photoionization of Fe7+ and Fe8+ in the 2p-3d resonance energy region
	Zeng, JL ; Dong, GX ; Zhao, G; Yuan, JM
刊名	JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS
	2004-06-28
卷号	37 期号:12 页码:2529-2542
英文摘要	The photoionization cross sections of the levels belonging to the ground configuration [Ne]3s(2)3p(6)3d of Fe7+ and [Ne]3s(2)3p(6) of Fe8+ have been investigated using the fully relativistic R-matrix method in the 2p-3d excitation region. The detailed resonance structures are described and analysed in some detail with the resonance positions, widths and oscillator strengths being determined. To identify the resonances, the transition energies and oscillator strengths are calculated by the multi-configuration Dirac-Fock method implemented by the GRASP code as well. The cross sections have also been obtained using the non-relativistic R-matrix calculations. The resonances in the relativistic calculation span a much broader energy region than the non-relativistic result. For an iron plasma at a temperature of 20 eV and a density of 0.004 g cm(-3), which is a typical experimental condition recently carried out by Chenais-Popovics et al (2000 Astrophys. J. Suppl. Ser. 127 275), the autoionization widths of the 2p-3d resonances are much larger than the widths caused by the radiative lifetime and electron impact broadening, while the Doppler widths are smaller than but rather close to the autoionization widths.
收录类别	SCI
语种	英语
WOS记录号	WOS:000222830400012
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/6936]
专题	国家天文台_光学天文研究部
作者单位	1.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Chaoyang Dist, Peoples R China 2.Natl Univ Def Technol, Dept Appl Phys, Changsha 410073, Peoples R China 3.Natl Nat Sci Fdn China, Dept Math & Phys Sci, Beijing 100085, Peoples R China
推荐引用方式 GB/T 7714	Zeng, JL,Dong, GX,Zhao, G,et al. The photoionization of Fe7+ and Fe8+ in the 2p-3d resonance energy region[J]. JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS,2004,37(12):2529-2542.
APA	Zeng, JL,Dong, GX,Zhao, G,&Yuan, JM.(2004).The photoionization of Fe7+ and Fe8+ in the 2p-3d resonance energy region.JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS,37(12),2529-2542.
MLA	Zeng, JL,et al."The photoionization of Fe7+ and Fe8+ in the 2p-3d resonance energy region".JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS 37.12(2004):2529-2542.