Digitale Medien
[s.l.]
:
Nature Publishing Group
Nature
323 (1986), S. 514-515
ISSN:
1476-4687
Quelle:
Nature Archives 1869 - 2009
Thema:
Biologie
,
Chemie und Pharmazie
,
Medizin
,
Allgemeine Naturwissenschaft
,
Physik
Notizen:
[Auszug] We have used two approximate methods to estimate the number of wide double images. The first works from the number density of rich clusters12 and the clustering of clusters3. There is no strong richness/velocity dispersion relation13'14 but we shall assume that two clusters of Abell richness class ...
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1038/323514a0
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