X-ray and EUV spectroscopy of various astrophysical and laboratory plasmas: Collisional, photoionization and charge-exchange plasmas

Journal Article · Mon Mar 10 04:00:00 EDT 2014 · Astrophysical Journal

DOI:https://doi.org/10.1088/0004-637X/783/2/124· OSTI ID:22351545

Liang, G. Y.; Li, F.; Wang, F. L.; Zhong, J. Y.; Zhao, G. ^[1]

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1. Key Laboratory of Optical Astronomy, National Astronomical Observatories, CAS, Beijing (China)

Several laboratory facilities were used to benchmark theoretical spectral models that are extensively used by astronomical communities. However, there are still many differences between astrophysical environments and laboratory miniatures that can be archived. Here we setup a spectral analysis system for astrophysical and laboratory plasmas to make a bridge between them, and we investigate the effects from non-thermal electrons and the contributions from a metastable level population on level populations and charge stage distribution for coronal-like, photoionized, and geocoronal plasmas. Test applications to laboratory measurement (i.e., electron beam ion trap plasma) and astrophysical observation (i.e., Comet, Cygnus X-3) are presented. A time evolution of the charge stage and level population are also explored for collisional and photoionized plasmas.

• OSTI ID: 22351545
• Journal Information: Astrophysical Journal, Journal Name: Astrophysical Journal Journal Issue: 2 Vol. 783; ISSN ASJOAB; ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTRONOMY AND ASTROPHYSICS
ASTROPHYSICS
BENCHMARKS
CHARGE EXCHANGE
COMETS
DISTRIBUTION
ELECTRON BEAMS
EVOLUTION
EXTREME ULTRAVIOLET RADIATION
IONS
PHOTOIONIZATION
PLASMA
SIMULATION
SPECTROSCOPY
STELLAR CORONAE
X RADIATION