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On the Origin of the Clustered QSO Metal Absorption Lines

Xiangdong Shi
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Abstract

Observations show that there is significant clustering of QSO metal absorption lines within the range of velocity dispersion between 200km/sec and 600 km/sec. With a reasonable supernova rate, it is shown that high velocity gases driven by SNe and/or strong stellar winds could explain the clustered absorptions, provided that QSO metal-line absorbers are galactic halos or dwarf galaxies. Rich clusters of galaxies, on the other hand, cannot yield the observed clustering of QSO metal absorption lines.

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Xiangdong Shi. 1995-01-11. On the Origin of the Clustered QSO Metal Absorption Lines. https://doi.org/10.1086/176039

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