Gravitational redshift of galaxies in clusters as predicted by general relativity [PDF]
Nature, 2011 The theoretical framework of cosmology is mainly defined by gravity, of which general relativity is the current model. Recent tests of general relativity within the Cold Dark Matter (CDM) model have found a concordance between predictions and the observations of the growth rate and clustering of the cosmic web.
Wojtak, R. +2 more
semanticscholar +7 more sources
A general framework for unbiased tests of gravity using galaxy clusters [PDF]
Monthly Notices of the Royal Astronomical Society, 2021 PhD thesis, 289 pages, 69 figures, 7 ...
Barbara Sartoris +6 more
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A general framework to test gravity using galaxy clusters – VI. Realistic galaxy formation simulations to study clusters in modified gravity [PDF]
Monthly Notices of the Royal Astronomical Society, 2022 ABSTRACT We present a retuning of the IllustrisTNG baryonic physics model which can be used to run large-box realistic cosmological simulations with a lower resolution. This new model employs a lowered gas density threshold for star formation and reduced energy releases by stellar and black hole feedback.
Myles A Mitchell +2 more
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THE FIRST GENERATION OF VIRGO CLUSTER DWARF ELLIPTICAL GALAXIES? [PDF]
The Astrophysical Journal, 2009 In the light of the question whether most early-type dwarf (dE) galaxies in clusters formed through infall and transformation of late-type progenitors, we search for an imprint of such an infall history in the oldest, most centrally concentrated dE subclass of the Virgo cluster: the nucleated dEs that show no signatures of disks or central residual ...
Suk Kim +11 more
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Intermittent Magnetic Fields Generated by Turbulence in Galaxies and Galaxy Clusters [PDF]
Symposium - International Astronomical Union, 1990 The turbulence of intracluster gas in galaxy clusters and interstellar gas in galaxies can act as a dynamo generating chaotic magnetic fields. These fields are concentrated in ropes with the doubled radius of curvature of about the turbulent correlation length l and thickness where Rm is the magnetic Reynolds number.
Alexander Ruzmaikin +2 more
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Turbulence and vorticity in Galaxy clusters generated by structure formation [PDF]
Monthly Notices of the Royal Astronomical Society, 2016 21 pages, 21 figure.
Franco Vazza +7 more
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Entropy Generation in Merging Galaxy Clusters [PDF]
, 2008 Replaced to correct typo in equation 3. 6 page contribution to the Heating vs. Cooling conference in Garching, August 2006.
Ian G. McCarthy +3 more
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Generalizing MOND to explain the missing mass in galaxy clusters [PDF]
Astronomy & Astrophysics, 2017 Modified Newtonian Dynamics (MOND) is a gravitational framework designed to explain the astronomical observations in the Universe without the inclusion of particle dark matter. Modified Newtonian Dynamics, in its current form, cannot explain the missing mass in galaxy clusters without the inclusion of some extra mass, be it in the form of neutrinos or ...
Hodson, Alistair O., Zhao, Hongsheng
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The generation of optical emission-line filaments in galaxy clusters [PDF]
Monthly Notices of the Royal Astronomical Society, 2008 15 pages, 18 figures. Altered density values in table 1, which were a factor of 1000 too small. Also extended caption for table 1 to show the mass outflow rate.
Thomas W. Hartquist +3 more
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Testing generalized scalar-tensor theories of gravity with clusters of galaxies
Physical Review D, 2023 We test the generalized scalar-tensor theory in static systems, namely galaxy clusters. The Degenerate higher-order scalar-tensor (DHOST) theory modifies the Newtonian potential through effective Newtonian constant and $Ξ_1$ parameter in the small scale, which modifies the hydrostatic equilibrium.
Haridasu B. S. +4 more
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