arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1902.05019astro-ph.SRastro-ph.HEphysics.atom-ph
收藏

CHIANTI -发射谱线用原子数据库.文件XV:版本9,X射线卫星谱线的改进

CHIANTI - an atomic database for emission lines - Paper XV: Version 9, improvements for the X-ray satellite lines

Kenneth P. Dere, Giulio Del Zanna, Peter R. Young, Enrico Landi, Ralph S. Sutherland

摘要:

CHIANTI包含了大量的原子数据用于天体物理光谱分析。IDL和Python中的程序可用于计算这些源的预期涌现光谱。该数据库包括原子能级,波长,辐射跃迁概率,碰撞激发,电离和复合的速率系数,以及计算自由,自由束缚和双光子连续发射的数据。在第9版中,我们改进了卫星线在X射线波长的建模,明确包括自电离和双电子复合过程中选择的成员的锂等电子序列和Fe XVIII-XXIII的水平人口的计算。此外,现有的数据集更新,新的离子添加和新的总重组率为几个铁离子。所有数据和IDL程序都可以在http://www.chiantidatabase.org或通过SolarSoft免费获得,Python代码ChiantiPy也可以在https://github.com/chianti-atomic/ChiantiPy免费获得。

英文摘要:

CHIANTI contains a large quantity of atomic data for the analysis of astrophysical spectra. Programs are available in IDL and Python to perform calculation of the expected emergent spectrum from these sources. The database includes atomic energy levels, wavelengths, radiative transition probabilities, rate coefficients for collisional excitation, ionization, and recombination, as well as data to calculate free-free, free-bound, and two-photon continuum emission. In Version 9, we improve the modelling of the satellite lines at X-ray wavelengths by explicitly including autoionization and dielectronic recombination processes in the calculation of level populations for select members of the lithium isoelectronic sequence and Fe XVIII-XXIII. In addition, existing datasets are updated, new ions added and new total recombination rates for several Fe ions are included. All data and IDL programs are freely available at http://www.chiantidatabase.org or through SolarSoft and the Python code ChiantiPy is also freely available at https://github.com/chianti-atomic/ChiantiPy.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑