activity
19952013
most citedClustering of X-ray selected Active Galactic Nuclei

35 citations · 251 across the 15 of their papers we have counts for

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Showing 1999Show all

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astro-ph1999★ 12 cited

The gaseous extent of galaxies and the origin of Lyman alpha absorption systems. IV: Lyman alpha absorbers arising in a galaxy group

A. Ortiz-Gil, K. M. Lanzetta, J. K. Webb +2

We present new GHRS observations of Lyman alpha absorption lines associated with a group of galaxies towards the QSO 1545+2101. We have identified eight distinct Lyman alpha absorp…