Abstract
Butcher and Oemler have reported that many clusters of galaxies at high redshift have enhanced populations of blue galaxies when compared to nearby clusters of similar type. Since this claim is based on broad-band colors alone, it is essential to obtain spectra of these blue objects to determine if they are actually cluster members. These spectra can also be used to provide a rough morphological classification of these objects that are too distant for detailed imaging with ground-based telescopes.
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© 1983 IAU
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Dressler, A. (1983). Spectroscopy of Distant Galaxies in Clusters. In: Abell, G.O., Chincarini, G. (eds) Early Evolution of the Universe and its Present Structure. International Astronomical Union / Union Astronomique Internationale, vol 104. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-7220-9_24
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DOI: https://doi.org/10.1007/978-94-009-7220-9_24
Publisher Name: Springer, Dordrecht
Print ISBN: 978-90-277-1662-0
Online ISBN: 978-94-009-7220-9
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