The Physics of QSO Absorption Line Regions
The Physics of QSO Absorption Line Regions
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QSO 吸收线区域的物理原理
DOI：
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发表时间：
1978
期刊：
影响因子：
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通讯作者：
A. Boksenberg
中科院分区：
文献类型：
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作者：
A. Boksenberg
在高红移类星体中观测到的吸收系统的物理性质进行了一些详细的描述。除了在少数天体中看到的非常宽的吸收线（几乎可以肯定是由于内禀质量外流造成的）之外，在类星体光谱中普遍存在的绝大多数窄吸收线，其相对速度从向外的大部分c到向内的几千km s-1不等，所有这些吸收线的特征都是相似的，类似于星际线，可以最自然地解释为产生于宇宙分布的中间物质，由浓缩气体和原始气体组成。
The physical properties of the absorption systems observed in high redshift QSOs are described in some detail. Apart from the very broad absorption lines seen in a few objects, which almost certainly are due to intrinsic mass outflow, the great majority of the narrow absorption lines commonly present in QSO spectra, ranging in relative velocity from a large fraction of c outward to a few thousand km s-1 inward, all of which are characteristically similar and resemble interstellar lines, can be most naturally explained as being produced in cosmologically distributed intervening material consisting of both enriched and primordial gas.