The multiplicity function of galaxies

Authors :: E. Puddu
Roy R. Gal
Giuseppe Longo
Stefano Andreon
E. De Filippis
Longo, Giuseppe
E., Puddu
E., DE FILIPPIS
S., Andreon
R. R., Gal
Puddu, E.
DE FILIPPIS, E.
Andreon, S.
Gal, R. R.
E., Peddu
Source :: Scopus-Elsevier
Abstract: The multiplicity function (MF) of groups and clusters of galaxies is determined using galaxy catalogues extracted from a set of Digitized Palomar Sky Survey (DPOSS) plates. The two different types of structures (of low and high richness) were identified using two different algorithms: a modified version of the van Albada method for groups, and a peak finding algorithm for larger structures. In a 300 sq. deg. area up to z<br />10 pages, 10 figures. Accepted by A&A