Astronomy and Astrophysics – Astrophysics
Scientific paper
Oct 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992a%26as...95....1g&link_type=abstract
Astronomy and Astrophysics Supplement Series (ISSN 0365-0138), vol. 95, no. 1, p. 1-7.
Astronomy and Astrophysics
Astrophysics
10
Elliptical Galaxies, Galactic Clusters, Galactic Structure, Astronomical Catalogs, Astronomical Spectroscopy, Galactic Evolution
Scientific paper
We present two optically selected samples of dumb-bell galaxies extracted from the southern extension of the Abell catalogue and we discuss the selection criteria. The first sample is a volume limited sample obtained by selecting the dumb-bell galaxies in all the 171 clusters within a comoving distance of 210/h Mpc, regardless of Bautz-Morgan classification. The second sample is constituted by dumb-bell systems belonging to the 381 clusters of BM I or I-II type. From the latter sample it is not possible to extract a volume limited sample due to the selection effect present in the Bautz-Morgan classification of the southern Abell catalogue.
de Ruiter Hans R.
Gregorini Loretta
Parma Paola
Vettolani Giampaolo
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