Binary galaxies and groups of galaxies
NOTE: Text or symbols not renderable in plain ASCII are indicated by [...]. Abstract is included in .pdf document. Using precisely defined identification criteria, a sample of 156 binary galaxy systems is selected from the Zwicky Catalog of Galaxies and Clusters of Galaxies. Data on their magnitude...
Internet
https://thesis.library.caltech.edu/3415/1/Turner_el_1976.pdfTurner, Edwin Lewis (1976) Binary galaxies and groups of galaxies. Dissertation (Ph.D.), California Institute of Technology. doi:10.7907/C4RG-BW87. https://resolver.caltech.edu/CaltechETD:etd-09092008-135416 <https://resolver.caltech.edu/CaltechETD:etd-09092008-135416>