Absorption Features of “Lα Damped” Type in Spectra of Very Distant QSO as an Indicator of Young Clusters of Galaxies
It is shown that at present one can not exclude a possibility that rare, wide and deep absorption feature of L α damped type could be formed in a rich gas medium of distant clusters of galaxies, not verialized yet. In future massive galaxies are likely to be formed in the central regions of these clusters. Nuclei of these galaxies become very active during a short time, i.e. they pass a stage of QSO. Narrower absorption lines of metals and/or 21 cm associated with L α damped systems can be formed in the clouds belonging to separate galaxies of these clusters.