Joined: 02 Jan 2007
|Posted: 26.10.2018 1:06 Post subject: New giant protocluster of galaxies discovered at high redshi
|New giant protocluster of galaxies discovered at high redshift
"The researchers emphasized that their discovery proves the existence of giant protoclusters at high redshifts. Hence, the finding contradicts the cold dark matter model predicting that small structures merge hierarchically to form large structures.
Morever, the astronomers noted that SXDS_gPC could also improve our understanding of the process of cosmic reionization, which ended at a redshift of about 6.0.
"The progenitor of SXDS_gPC is likely such a high-density region in the reionization era. Our results fit well into this scenario, and may provide direct evidence for the existence of large-scale clustering required by the above reionization theory," the researchers concluded."
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