文章基本信息

标题：Plasma environment effects on K lines of astrophysical interest
其他标题：I. Atomic structure, radiative rates, and Auger widths of oxygen ions
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作者：J. Deprince ; M. A. Bautista ; S. Fritzsche 等
期刊名称：Astronomy & Astrophysics
印刷版ISSN：0004-6361
电子版ISSN：1432-0746
出版年度：2019
卷号：624
DOI：10.1051/0004-6361/201935075
语种：English
出版社：EDP Sciences
摘要：Aims. In the context of black-hole accretion disks, the main goal of the present study is to estimate the plasma environment effects on the atomic structure and radiative parameters associated with the K-vacancy states in ions of the oxygen isonuclear sequence.Methods. We used a time-averaged Debye–Hückel potential for both the electron–nucleus and the electron–electron interactions implemented in the fully relativistic multiconfiguration Dirac–Fock (MCDF) method.Results. Modified ionization potentials, K thresholds, Auger widths, and radiative transition wavelengths and rates are reported for O I–O VIIin plasma environments with electron temperature and density ranges 105−107K and 1018−1022cm−3.
关键词：enblack hole physicsplasmasatomic dataX-rays: general