Astronomy and Astrophysics – Astrophysics
Scientific paper
Feb 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002a%26a...382..389k&link_type=abstract
Astronomy and Astrophysics, v.382, p.389-396 (2002)
Astronomy and Astrophysics
Astrophysics
4
Galaxies: Clusters, Galaxies: Elliptical And Lenticular, Cd, Galaxies: Fundamental Parameters -, Galaxies: Photometry, Galaxies: Distances And Redshifts, Cosmology: Large-Scale Structure Of Universe
Scientific paper
We present the results of a study of streaming motion of galaxy clusters around the Giant Void (alpha ~ 13{h}, delta ~ 40o, z ~ 0.11 and a diameter of 300 Mpc) in the distribution of rich Abell clusters. We used the Kormendy relation as a distance indicator taking into account galaxy luminosities. Observations were carried out in Kron-Cousins Rc system on the 6 m and 1 m telescopes of SAO RAS. For 17 clusters in a spherical shell of 50 Mpc in thickness centered on the void no significant diverging motion (expected to be generated by the mass deficit in the void) has been detected. This implies that cosmological models with low Omegam are preferred. To explain small mass underdensity inside the Giant Void, a mechanism of void formation with strong biasing is required. Table 2 is only available in electronic form at the CDS via anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/382/389
Kopylov Alexander I.
Kopylova Flera G.
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