Cluster density slopes from Dark Matter-Baryons Energy Transfer

Abstract

In this paper, we extend previous works on the relation between mass and the inner slope in dark matter density profiles. We calculate that relation in the mass range going from dwarf galaxies to cluster of galaxies. This was done thanks to a modeling of energy transfer via SN and AGN feedback, as well as via dynamical friction of baryon clumps. We show that, in the mass range above galaxy masses (Groups and clusters), the inner slope-mass relation changes its trend. It flattens (towards less cuspy profile) around masses corresponding to groups of galaxies and steepens again for large galaxy cluster masses. The flattening is produced by the AGN outflows (AGN feedback). The one-$\sigma$ scatter on $\alpha$ is approximately constant in all the mass range ($\Delta \alpha \simeq 0.3$). This is the first paper extending the inner density profile slope-mass relationship to clusters of galaxies, accounting for the role of baryons. The result can be used to obtain a complete density profile, also taking baryons into account. Such kind of density profile was previously only available for galaxies.

13pp, 2 figs, Published in: Phys.Dark Univ. 33 (2021) 100847

References in corpus (41)

• Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation
• Too big to fail? The puzzling darkness of massive Milky Way subhaloes
• Dark torsion as the cosmic speed-up
• Einstein's Other Gravity and the Acceleration of the Universe
• Formation of Massive Galaxies at High Redshift: Cold Streams, Clumpy Disks and Compact Spheroids
• High-Resolution Rotation Curves and Galaxy Mass Models from THINGS
• Slow Star Formation in Dense Gas: Evidence and Implications
• The redshift dependence of the structure of massive LCDM halos
• A comprehensive set of simulations studying the influence of gas expulsion on star cluster evolution
• Stellar Feedback in Dwarf Galaxy Formation
• Bulge Formation by the Coalescence of Giant Clumps in Primordial Disk Galaxies
• f(T) gravity mimicking dynamical dark energy. Background and perturbation analysis
• The kinematic status and mass content of the Sculptor dwarf spheroidal galaxy
• A mass-dependent density profile for dark matter haloes including the influence of galaxy formation
• High-resolution dark matter density profiles of THINGS dwarf galaxies: Correcting for non-circular motions
• Too Big to Fail in the Local Group
• Clumpy Galaxies in CANDELS. I. The Definition of UV Clumps and the Fraction of Clumpy Galaxies at 0.5<z<3
• Growth factor in f(T) gravity
• Is there a "too big to fail" problem in the field?
• The Galaxy and its stellar halo: insights on their formation from a hybrid cosmological approach
• GHASP : an H alpha kinematic survey of spiral and irregular galaxies. V. Dark matter distribution in 36 nearby spiral galaxies
• Clumpy Galaxies in GOODS and GEMS: Massive Analogs of Local Dwarf Irregulars
• Erasing Dark Matter Cusps in Cosmological Galactic Halos with Baryons
• Baryonic Pinching of Galactic Dark Matter Halos
• Dwarf Galaxy Dark Matter Density Profiles Inferred from Stellar and Gas Kinematics
• Dissecting Galaxy Formation: I. Comparison Between Pure Dark Matter and Baryonic Models
• Early formation of massive, compact, spheroidal galaxies with classical profiles by violent disc instability or mergers
• Early flattening of dark matter cusps in dwarf spheroidal galaxies
• Cores and Cusps in the Dwarf Spheroidals
• Dark matter and structure formation a review
• When the Jeans don't fit: How stellar feedback drives stellar kinematics and complicates dynamical modeling in low-mass galaxies
• Shear and rotation in Chaplygin cosmology
• A unified solution to the small scale problems of the $\Lambda$CDM model
• Is the Concentration of Dark Matter Halos at Virialization Universal ?
• Fingerprints of the initial conditions on the density profiles of cold and warm dark matter haloes
• A high precision semi-analytic mass function
• NIHAO-XXIII: Dark Matter density shaped by Black Hole feedback
• A unified solution to the small scale problems of the $\Lambda$CDM model II: introducing parent-satellite interaction
• Nearby Clumpy, Gas Rich, Star Forming Galaxies: Local Analogs of High Redshift Clumpy Galaxies
• The flat density profiles of massive, and relaxed galaxy clusters
• On the dark matter haloes inner structure and galaxy morphology