Uncertainties in Atomic Data for Modeling Astrophysical Charge Exchange Plasmas
文献类型：期刊论文
| 作者 | Gu, Liyi1,2; Shah, Chintan3,4,5; Zhang, Ruitian6,7 |
| 刊名 | SENSORS
 |
| 出版日期 | 2022-02-01 |
| 卷号 | 22期号:3页码:13 |
| 关键词 | charge exchange X-ray astrophysics atomic data plasma diagnostics |
| DOI | 10.3390/s22030752 |
| 通讯作者 | Gu, Liyi(l.gu@sron.nl) |
| 英文摘要 | Relevant uncertainties of theoretical atomic data are vital to determining the accuracy of plasma diagnostics in a number of areas, including, in particular, the astrophysical study. We present a new calculation of the uncertainties on the present theoretical ion-impact charge exchange atomic data and X-ray spectra, based on a set of comparisons with the existing laboratory data obtained in historical merged-beam, cold-target recoil-ion momentum spectroscopy, and electron beam ion traps experiments. The average systematic uncertainties are found to be 35-88% on the total cross sections, and 57-75% on the characteristic line ratios. The model deviation increases as the collision energy decreases. The errors on total cross sections further induce a significant uncertainty to the calculation of ionization balance for low-temperature collisional plasmas. Substantial improvements of the atomic database and dedicated laboratory measurements are needed to obtain the current models, ready for the X-ray spectra from the next X-ray spectroscopic mission. |
| WOS关键词 | SINGLE-ELECTRON-CAPTURE ; X-RAY-EMISSION ; CROSS-SECTIONS ; SLOW COLLISIONS ; SOLAR-WIND ; MERGED-BEAMS ; IONS ; HYDROGEN ; H-2 ; HE |
| 资助项目 | European Union[871158] |
| WOS研究方向 | Chemistry ; Engineering ; Instruments & Instrumentation |
| 语种 | 英语 |
| 出版者 | MDPI |
| WOS记录号 | WOS:000757209300001 |
| 资助机构 | European Union |
| 源URL | [http://119.78.100.186/handle/113462/142029]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Gu, Liyi |
| 作者单位 | 1.SRON Netherlands Inst Space Res, Niels Bohrweg 4, NL-2333 CA Leiden, Netherlands 2.RIKEN High Energy Astrophys Lab, 2-1 Hirosawa, Wako, Saitama 3510198, Japan 3.NASA Goddard Space Flight Ctr, 8800 Greenbelt Rd, Greenbelt, MD 20771 USA 4.Max Planck Inst Kernphys, Saupfercheckweg 1, D-69117 Heidelberg, Germany 5.Lawrence Livermore Natl Lab, 7000 East Ave, Livermore, CA 94550 USA 6.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China 7.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Gu, Liyi,Shah, Chintan,Zhang, Ruitian. Uncertainties in Atomic Data for Modeling Astrophysical Charge Exchange Plasmas[J]. SENSORS,2022,22(3):13. |
| APA | Gu, Liyi,Shah, Chintan,&Zhang, Ruitian.(2022).Uncertainties in Atomic Data for Modeling Astrophysical Charge Exchange Plasmas.SENSORS,22(3),13. |
| MLA | Gu, Liyi,et al."Uncertainties in Atomic Data for Modeling Astrophysical Charge Exchange Plasmas".SENSORS 22.3(2022):13. |
入库方式： OAI收割
来源：近代物理研究所
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