The 2dF galaxy redshift survey: The blue galaxy fraction and implications for the Butcher-Oemler effect
We derive the fraction of blue galaxies in a sample of clusters at z < 0.11 and the general field at the same redshift. The value of the blue fraction is observed to depend on the luminosity limit adopted, cluster-centric radius and, more generally, local galaxy density, but it does not depen...
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Materiálatiipa: | Journal article |
Giella: | English |
Almmustuhtton: |
2004
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