A test of Radial Acceleration Relation for the {\it Giles et al Chandra} cluster sample

Abstract

We carry out a test of the radial acceleration relation (RAR) for a sample of 10 dynamically relaxed and cool-core galaxy clusters imaged by the Chandra X-ray telescope, which was studied in Giles et al. For this sample, we observe that the best-fit RAR shows a very tight residual scatter equal to 0.09 dex. We obtain an acceleration scale of $1.59\times 10^{-9}m/s^2$, which is about an order of magnitude higher than that obtained for galaxies. Furthermore, the best-fit RAR parameters differ from those estimated from some of the previously analyzed cluster samples, which indicates that the acceleration scale found from the RAR could be of an emergent nature, instead of a fundamental universal scale.

arXiv comment6 pages, 2 figures. Accepted for publication in Phys. Dark Universe

References in corpus (33)

• emcee: The MCMC Hammer
• Chandra sample of nearby relaxed galaxy clusters: mass, gas fraction, and mass-temperature relation
• Cosmological Parameters from Observations of Galaxy Clusters
• Modified Newtonian Dynamics (MOND): Observational Phenomenology and Relativistic Extensions
• The ROSAT Brightest Cluster Sample (BCS) - I. The compilation of the sample and the cluster log N-log S distribution
• The Radial Acceleration Relation in Rotationally Supported Galaxies
• What is a Cool-Core Cluster? A Detailed Analysis of the Cores of the X-ray Flux-Limited HIFLUGCS Cluster Sample
• The ROSAT Brightest Cluster Sample (BCS) - IV. The extended sample
• The impact of mergers on relaxed X-ray clusters - I. Dynamical evolution and emergent transient structures
• GW170817 Falsifies Dark Matter Emulators
• Fitting the radial acceleration relation to individual SPARC galaxies
• The Mass-Discrepancy Acceleration Relation: a Natural Outcome of Galaxy Formation in Cold Dark Matter halos
• The Cluster Mass Function from Weak Gravitational Lensing
• A statistical investigation of the mass discrepancy-acceleration relation
• Baryon Content of Massive Galaxy Clusters at z=0-0.6
• The origin of the mass discrepancy-acceleration relation in $\Lambda$CDM
• Absence of a fundamental acceleration scale in galaxies
• Predictions and Outcomes for the Dynamics of Rotating Galaxies
• Observational Tests of Nonlocal Gravity: Galaxy Rotation Curves and Clusters of Galaxies
• The Radial Acceleration Relation in CLASH Galaxy Clusters
• NIHAO XVIII: Origin of the MOND phenomenology of galactic rotation curves in a LCDM universe
• A common Milgromian acceleration scale in nature
• Chandra Measurements of a Complete Sample of X-ray Luminous Galaxy Clusters: The Luminosity-Mass Relation
• What is the price of abandoning dark matter? Cosmological constraints on alternative gravity theories
• Is there a fundamental acceleration scale in galaxies?
• Yet another test of Radial Acceleration Relation for galaxy clusters
• A fundamental test for MOND
• Reply to "Presence of a fundamental acceleration scale in galaxies" and "A common Milgromian acceleration scale in nature"
• Scaling relations for dark matter core density and radius from Chandra X-ray cluster sample
• Reply to: Overconfidence in Bayesian analyses of galaxy rotation curves
• Bound on the graviton mass from Chandra X-ray cluster sample
• Galaxy cluster hydrostatic masses using Tolman-Oppenheimer-Volkoff equation
• Testing emergent gravity with mass densities of galaxy clusters

Cited by in corpus (11)

• On the functional form of the radial acceleration relation
• On the fundamentality of the radial acceleration relation for late-type galaxy dynamics
• The underlying radial acceleration relation
• A test of constancy of dark matter halo surface density and radial acceleration relation in relaxed galaxy groups
• There is no universal acceleration scale in galaxies
• Constraints on Self-Interacting dark matter from relaxed galaxy groups
• Testing the Collisionless Nature of Dark Matter with the Radial Acceleration Relation in Galaxy Clusters
• A test of linearity of the ratio of dark matter to baryonic matter in galaxy clusters
• A test of galaxy cluster fundamental plane for the X-COP sample
• A test of MOND and Emergent Gravity with SMACS J0723.3-7327 using eROSITA observations
• Examining Baryonic Faber-Jackson Relation in Galaxy Groups