A NOVEL METHOD TO DETERMINE MAGNETIC FIELDS IN LOW-DENSITY PLASMA FACILITATED THROUGH ACCIDENTAL DEGENERACY OF QUANTUM STATES IN Fe9+
文献类型：期刊论文
| 作者 | Li, Wenxian1,2; Grumer, Jon3; Yang, Yang1,2; Brage, Tomas3; Yao, Ke1,2; Chen, Chongyang1,2; Watanabe, Tetsuya4; Jonsson, Per5; Lundstedt, Henrik6; Hutton, Roger1,2 |
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2015-07-01 |
| 卷号 | 807页码:6 |
| 关键词 | atomic processes Sun: corona Sun: magnetic fields Sun: UV radiation techniques: spectroscopic |
| ISSN号 | 0004-637X |
| DOI | 10.1088/0004-637X/807/1/69 |
| 英文摘要 | We propose a new method to determine magnetic fields, by using the magnetic-field-induced electric dipole transition 3p(4) 3d D-4(7/2) -> 3p(5) P-3/2 in Fe9+ ions. This ion has a high abundance in astrophysical plasma and is therefore well suited for direct measurements of even rather weak fields in, e.g., solar flares. This transition is induced by an external magnetic field and its rate is proportional to the square of the magnetic field strength. We present theoretical values for what we will label the reduced rate and propose that the critical energy difference between the upper level in this transition and the close-to-degenerate 3p(4) 3d D-4(5/2) should be measured experimentally since it is required to determine the relative intensity of this magnetic line for different magnetic fields. |
| WOS关键词 | SOLAR ACTIVE-REGION ; ATOMIC DATA ; RADIATIVE RATES ; CORONAL LINES ; ASTROPHYSICS ; TRANSITIONS |
| 资助项目 | Chinese National Fusion Project for ITER[2015GB117000] ; Shanghai Leading Academic Discipline Project[B107] ; Swedish Institute under the Visby programme |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000358945200069 |
| 出版者 | IOP PUBLISHING LTD |
| 资助机构 | Chinese National Fusion Project for ITER ; Shanghai Leading Academic Discipline Project ; Swedish Institute under the Visby programme |
| 源URL | [http://119.78.100.186/handle/113462/40258]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Li, Wenxian |
| 作者单位 | 1.Minist Educ, Key Lab Appl Ion Beam Phys, Shanghai, Peoples R China 2.Fudan Univ, Inst Modern Phys, Shanghai EBIT Lab, Shanghai 200433, Peoples R China 3.Lund Univ, Dept Phys, Div Math Phys, S-22100 Lund, Sweden 4.Natl Astron Observ Japan, Tokyo, Japan 5.Malmo Univ, Div Mat Sci & Computat Math, Malmo, Sweden 6.Swedish Inst Space Phys, Solar Terr Phys Div, Lund, Sweden |
| 推荐引用方式 GB/T 7714 | Li, Wenxian,Grumer, Jon,Yang, Yang,et al. A NOVEL METHOD TO DETERMINE MAGNETIC FIELDS IN LOW-DENSITY PLASMA FACILITATED THROUGH ACCIDENTAL DEGENERACY OF QUANTUM STATES IN Fe9+[J]. ASTROPHYSICAL JOURNAL,2015,807:6. |
| APA | Li, Wenxian.,Grumer, Jon.,Yang, Yang.,Brage, Tomas.,Yao, Ke.,...&Zou, Yaming.(2015).A NOVEL METHOD TO DETERMINE MAGNETIC FIELDS IN LOW-DENSITY PLASMA FACILITATED THROUGH ACCIDENTAL DEGENERACY OF QUANTUM STATES IN Fe9+.ASTROPHYSICAL JOURNAL,807,6. |
| MLA | Li, Wenxian,et al."A NOVEL METHOD TO DETERMINE MAGNETIC FIELDS IN LOW-DENSITY PLASMA FACILITATED THROUGH ACCIDENTAL DEGENERACY OF QUANTUM STATES IN Fe9+".ASTROPHYSICAL JOURNAL 807(2015):6. |
入库方式： OAI收割
来源：近代物理研究所
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