The possibility of resonance-enhanced two-photon ionization of Ne and Ar atoms in astrophysical plasmas

被引：0
|
作者：
S. Johansson
V. S. Letokhov
机构：
[1] Lund Observatory,
[2] Institute of Spectroscopy,undefined
来源：
Astronomy Reports | 2004年 / 48卷
关键词：
Radiation; Recombination; Recombination Rate; Ionization State; Resonance Line;
D O I：
暂无
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学科分类号：
摘要：
We consider possible schemes for the resonance-enhanced two-photon ionization (RETPI) of Ne and Ar atoms under the action of bichromatic radiation of intense resonance lines of HI, HeI, and HeII in a radiation-rich astrophysical plasma. The ionization rate is comparable to or exceeds the recombination rate in rarified astrophysical plasma, which leads to the accumulation of singly ionized ions with a subsequent transition to the higher ionization state via RETPI. We consider the RETPI reaction chains NeI → ... → NeV and ArI → ... → ArVI.
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页码：399 / 406
页数：7
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