299 citations · 3.4k across the 113 of their papers we have counts for
4 papers · 1 filter
Confronting Dark Energy Models using Galaxy Cluster Number Counts
S. Basilakos, M. Plionis, J. A. S. Lima
The mass function of cluster-size halos and their redshift distribution are computed for 12 distinct accelerating cosmological scenarios and confronted to the predictions of the co…
The Relation Between Halo Shape, Velocity Dispersion and Formation Time
C. Ragone-Figueroa, M. Plionis, M. Merchan +2
We use dark matter haloes identified in the MareNostrum Universe and galaxy groups identified in the Sloan Data Release 7 galaxy catalogue, to study the relation between halo shape…
The spherical collapse model in time varying vacuum cosmologies
S. Basilakos, M. Plionis, J. Sola
We investigate the virialization of cosmic structures in the framework of flat FLRW cosmological models, in which the vacuum energy density evolves with time. In particular, our an…
Luminous X-ray AGN in Clusters of Galaxies
E. Koulouridis, M. Plionis
We present a study of X-ray AGN overdensities in 16 Abell clusters, within the redshift range 0.073<z<0.279, in order to investigate the effect of the hot inter-cluster environment…