X-ray and EUV spectroscopy of various astrophysical and laboratory plasmas -- Collisional, photoionization and charge-exchange plasmas
| Autor: | Guiyun Liang, Fei Wang, Yuefang Wu, Jiayong Zhong, Gang Zhao, Fa-Cheng Li |
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| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: |
Physics
education.field_of_study Comet Population FOS: Physical sciences Astronomy and Astrophysics Photoionization Plasma Electron Ion Nuclear physics Astrophysics - Solar and Stellar Astrophysics Space and Planetary Science Physics::Plasma Physics Physics::Space Physics Spectroscopy education Solar and Stellar Astrophysics (astro-ph.SR) Electron beam ion trap |
| Popis: | Several laboratory facilities were used to benchmark theoretical spectral models those 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 (SASAL) plasmas to make a bridge between them, and investigate the effects from non-thermal electrons, contribution from metastable level-population on level populations and charge stage distribution for coronal-like, photoionized, and geocoronal plasmas. Test applications to laboratory measurement (i.e. EBIT plasma) and astrophysical observation (i.e. Comet, Cygnus X-3) are presented. Time evolution of charge stage and level population are also explored for collisional and photoionized plasmas. 11 Figures, 3 Tables, Accepted by ApJ on Jan. 23, 2014. Astrophysical Journal 2014 |
| Databáze: | OpenAIRE |
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