Measurement of n-resolved State-selective Charge Exchange in Ne-(8,Ne-9)+ Collision with He and H-2

doi:10.3847/1538-4365/abd020

	Measurement of n-resolved State-selective Charge Exchange in Ne-(8,Ne-9)+ Collision with He and H-2
	Xu, J. W.1,8; Xu, C. X.5,6,7; Zhang, R. T.1; Zhu, X. L.1,8; Feng, W. T.1; Gu, L.3,4; Liang, G. Y.2; Guo, D. L.1; Gao, Y.1; Zhao, D. M.1
刊名	ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
	2021-03-01
卷号	253 期号:1 页码:10
关键词	Atomic spectroscopy Atomic physics Collision processes Molecular physics Atomic data benchmarking
ISSN号	0067-0049
DOI	10.3847/1538-4365/abd020
通讯作者	Zhang, R. T.(zhangrt@impcas.ac.cn)
英文摘要	Charge exchange between highly charged ions and neutral atoms and molecules has been considered as one of the important mechanisms controlling soft X-ray emissions in many astrophysical objects and environments. However, for modeling charge exchange soft X-ray emission, the data of n- and l-resolved state-selective capture cross sections are often obtained by empirical and semiclassical theory calculations. With a newly built cold target recoil-ion momentum spectroscopy (COLTRIMS) apparatus, we perform a series of measurements of the charge exchange of Ne-(8,Ne-9)+ ions with He and H-2 for collision energy ranging from 1 to 24.75 keV/u. n-resolved state-selective capture cross sections are reported. By comparing the measured state-selective capture cross sections to those calculated by the multichannel Landau-Zener method (MCLZ), it is found that MCLZ calculations are in good agreement with the measurement for the dominant n capture for He target. Furthermore, by using nl-resolved cross sections calculated by MCLZ and applying l distributions commonly used in the astrophysical literature to experimentally derived n-resolved cross sections, we calculate the soft X-ray emissions in the charge exchange between 4 keV/u Ne8+ and He by considering the radiative cascade from the excited Ne7+ ions. Reasonable agreement is found in comparison to the measurement for even and separable models, and MCLZ calculations give results in a better agreement.
资助项目	National Key Research and Development Program of China[2017YFA0402400] ; National Key Research and Development Program of China[2017YFA0402300] ; Strategic Key Research Program of the Chinese Academy of Sciences[XDB34020000] ; National Natural Science Foundation of China[U1832201]
WOS研究方向	Astronomy & Astrophysics
语种	英语
出版者	IOP PUBLISHING LTD
WOS记录号	WOS:000624465900001
资助机构	National Key Research and Development Program of China ; Strategic Key Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/137784]
专题	中国科学院近代物理研究所
通讯作者	Zhang, R. T.
作者单位	1.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Key Lab Opt Astron, Natl Astron Observ, Beijing 100012, Peoples R China 3.SRON Netherlands Inst Space Res, Sorbonnelaan 2, NL-3584 CA Utrecht, Netherlands 4.RIKEN High Energy Astrophys Lab, 2-1 Hirosawa, Wako, Saitama 3510198, Japan 5.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730070, Peoples R China 6.Northwest Normal Univ, Joint Lab Atom & Mol Phys, Lanzhou 730070, Peoples R China 7.Northwest Normal Univ, Coll Phys & Elect Engn, Key Lab Atom & Mol Phys Funct Mat Gansu Prov, Lanzhou 730070, Peoples R China 8.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Xu, J. W.,Xu, C. X.,Zhang, R. T.,et al. Measurement of n-resolved State-selective Charge Exchange in Ne-(8,Ne-9)+ Collision with He and H-2[J]. ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,2021,253(1):10.
APA	Xu, J. W..,Xu, C. X..,Zhang, R. T..,Zhu, X. L..,Feng, W. T..,...&Ma, X..(2021).Measurement of n-resolved State-selective Charge Exchange in Ne-(8,Ne-9)+ Collision with He and H-2.ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,253(1),10.
MLA	Xu, J. W.,et al."Measurement of n-resolved State-selective Charge Exchange in Ne-(8,Ne-9)+ Collision with He and H-2".ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES 253.1(2021):10.