The distribution of QSO absorption lines and its implications |
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| Authors: | Li-Zhi Fang Yaoquan Chu Xingfen Zhu |
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| Institution: | (1) Beijing Astronomical Observatory, Chinese Academy of Sciences, Beijing, China;(2) Institute for Astrophysics, University of Bonn, Bonn, F.R.G. |
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| Abstract: | The distribution of L absorption lines has been investigated in the fractal scheme. It is found that (1) the L absorption clouds distribute completely different from that of galaxies; (2) the L absorption clouds are anti-associated with galaxies and quasars. These results may imply that there are two kinds of objects formed by different processes of clustering. This is favourable for the cosmic-string theory on the formation of large-scale structure of the Universe. In the string model, the objects can be divided into two kinds according to their clustering with or without string loops as their initial density perturbation.On leave from the Center of Astrophysics, University of Science and Technology of China, Hefei, P.R. China. Y. Chu is a research fellow of Alexander von Humboldt-Foundation. |
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