The cosmological constant derived via galaxy groups and clusters [PDF]
European Physical Journal C: Particles and Fields, 2019 The common nature of dark matter and dark energy is argued in Gurzadyan (Eur Phys J Plus 134:14, 2019) based on the approach that the cosmological constant $$\varLambda $$ Λ enters the weak-field General Relativity following from Newton theorem on the ...
V. G. Gurzadyan, A. Stepanian
doaj +4 more sources
Integrated HI emission in galaxy groups and clusters [PDF]
, 2017 The integrated HI emission from hierarchical structures such as groups and clusters of galaxies can be detected by FAST at intermediate redshifts. Here we propose to use FAST to study the evolution of the global HI content of clusters and groups over ...
Mei Ai, Ming Zhu, Jian Fu
core +5 more sources
Iron as a Tracer in Galaxy Clusters and Groups [PDF]
The Astrophysical Journal, 1997 Available X-ray data are collected and organized concerning the iron and gas content of galaxy clusters and groups, together with the optical luminosity, mass and iron abundance of cluster galaxies.
Alvio Renzini
core +7 more sources
Galaxy evolution in groups and clusters: satellite star formation histories and quenching time-scales in a hierarchical Universe [PDF]
, 2013 Satellite galaxies in groups and clusters are more likely to have low star formation rates (SFR) and lie on the red-sequence than central (field) galaxies.
Andrew Wetzel +3 more
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The radial structure of galaxy groups and clusters [PDF]
, 2003 Simple self-consistent models of galaxy groups and clusters are tested against the results of high-resolution adiabatic gasdynamical simulations. We investigate two models based on the existence of a 'universal' dark matter density profile and two ...
Bartelmann +73 more
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The faint light in groups and clusters of galaxies [PDF]
Nature Astronomy, 2022 The diffuse light that spreads through groups and clusters of galaxies is made of free-floating stars not bound to any galaxy. This is known as the intracluster light (ICL) and holds important clues for understanding the evolution of these large ...
Mireia Montes
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Dust accretion and destruction in galaxy groups and clusters [PDF]
, 2010 We examine the dust distribution around a sample of 70,000 low redshift galaxy groups and clusters derived from the Sloan Digital Sky Survey. By correlating spectroscopically identified background quasars with the galaxy groups we obtain the relative ...
Adelman-McCarthy +65 more
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Observational Mass-to-Light Ratio of Galaxy Systems: from Poor Groups to Rich Clusters [PDF]
, 2001 We study the mass-to-light ratio of galaxy systems from poor groups to rich clusters, and present for the first time a large database for useful comparisons with theoretical predictions.
M. Girardi +4 more
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Revisiting the Cooling Flow Problem in Galaxies, Groups, and Clusters of Galaxies [PDF]
, 2018 We present a study of 107 galaxies, groups, and clusters spanning ∼3 orders of magnitude in mass, ∼5 orders of magnitude in central galaxy star formation rate (SFR), ∼4 orders of magnitude in the classical cooling rate ( ) of the intracluster medium (ICM)
M. McDonald +3 more
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Shaken Snow Globes: Kinematic Tracers of the Multiphase Condensation Cascade in Massive Galaxies, Groups, and Clusters [PDF]
, 2018 We propose a novel method to constrain turbulence and bulk motions in massive galaxies, galaxy groups, and clusters, exploring both simulations and observations.
M. Gaspari +18 more
openalex +3 more sources