22 citations · 36 across the 6 of their papers we have counts for
6 papers
Searching for a signature of turnaround in galaxy clusters with convolutional neural networks
Nikolaos Triantafyllou, Giorgos Korkidis, Vasiliki Pavlidou +1
Galaxy clusters are important cosmological probes that have helped to establish the CDM paradigm as the standard model of cosmology. However, recent tensions between diff…
Hubble Expansion Signature on Simulated Halo Density Profiles: A Path to Observing the Turnaround Radius
Giorgos Korkidis, Vasiliki Pavlidou
Density profiles are important tools in galaxy cluster research, offering insights into clusters dynamical states and their relationship with the broader Universe. While these prof…
Mass scaling relations for dark halos from an analytic universal outer density profile
Giorgos Korkidis, Vasiliki Pavlidou
The average matter density within the turnaround scale, which demarcates where galaxies shift from clustering around a structure to joining the expansion of the Universe, is an imp…
Turnaround density evolution encodes cosmology in simulations
Giorgos Korkidis, Vasiliki Pavlidou, Konstantinos Tassis
The mean matter density within the turnaround radius, which is the boundary that separates a nonexpanding structure from the Hubble flow, was recently proposed as a novel cosmologi…
Turnaround density as a probe of the cosmological constant
Vasiliki Pavlidou, Giorgos Korkidis, Theodore Tomaras +1
Spherical collapse predicts that a single value of the turnaround density (average matter density within the scale on which a structure detaches from the Hubble flow) characterizes…
Turnaround radius of galaxy clusters in N-body simulations
Giorgos Korkidis, Vasiliki Pavlidou, Konstantinos Tassis +3
We use N-body simulations to examine whether a characteristic turnaround radius, as predicted from the spherical collapse model in a Universe, can be meaningfully iden…