天文学进展2017，Vol.35Issue(4)：417-428,12.DOI:10.3969/j.issn.1000-8349.2017.04.03
基于电子束离子阱的天体X射线和极紫外辐射研究进展
Progress in the Field of Research in Region of X-ray and EUV on Electron Beam Ion Trap
摘要
Abstract
Observed spectram is the basic data for celestial research. In recent years, with the enhancement of space, equipment, imaging technologies and simulation techniques, spec-trometers with larger effective area have provided abundant X-ray and extreme ultra-violet spectra with high resolution. These spectral data which will post deep insights on different ob jects, such as plasma heating, accretion of compact ob jects, energy storage and release, emission structure, feedback of supernova, as well as kinetics and dynamics in X-ray/EUV emitters, are mainly dissected by theoretical calculations. However, the models depend on many elementary atomic parameters and there are different understanding for the same ob ject between different models, it is necessary to calibrate these models by laboratory measurement. The electron beam ion trap which is an inexpensive compact device is an ideal facility for spectroscopic benchmark due to its overlapping electron density and temperature with as-trophysical plasma in stellar corona, supernova remnants and so on. Therefore, the spectral measurement based on the electron beam ion trap greatly promotes the study of X-ray and extreme ultraviolet radiation. This article will focus on the following: current situation of spectra of satellite observations and theoretical calculation and the problems; the latest re-search progress of the important diagnostic line ratio(Fe XVII's 3C/3D) based on EBIT;recent advances in laboratory measurement of X-rays and extreme ultraviolet radiation based on electron beam ion trap. Finally, a brief prospect for the laboratory spectroscopy research will be given.关键词
电子束离子阱/X射线/极紫外辐射/原子数据/高分辨率Key words
EBIT/X-ray/EUV/atomic data/high-resolution分类
天文与地球科学引用本文复制引用
彭吉敏,仲佳勇,梁贵云,刘畅..基于电子束离子阱的天体X射线和极紫外辐射研究进展[J].天文学进展,2017,35(4):417-428,12.基金项目
国家自然科学基金(11522326) （11522326）
