The Cusp/Core problem: supernovae feedback versus the baryonic clumps and dynamical friction model

Abstract

In the present paper, we compare the predictions of two well known mechanisms considered able to solve the cusp/core problem (a. supernova feedback; b. baryonic clumps-DM interaction) by comparing their theoretical predictions to recent observations of the inner slopes of galaxies with masses ranging from dSphs to normal spirals. We compare the $\alpha$-$V_{\mathrm{rot}}$ and the $\alpha$-$M_{\ast }$ relationships, predicted by the two models with high resolution data coming from \citep{Adams2014,Simon2005}, LITTLE THINGS \citep{Oh2015}, THINGS dwarves \citep{Oh2011a,Oh2011b}, THINGS spirals \citep{Oh2015}, Sculptor, Fornax and the Milky Way. The comparison of the theoretical predictions with the complete set of data shows that the two models perform similarly, while when we restrict the analysis to a smaller subsample of higher quality, we show that the method presented in this paper (baryonic clumps-DM interaction) performs better than the one based on supernova feedback. We also show that, contrarily to the first model prediction, dSphs of small mass could have cored profiles. This means that observations of cored inner profiles in dSphs having a stellar mass $<10^6{M}_{\odot }$ not necessarily imply problems for the $\Lambda$CDM model.

22 pages, 5 figures, accepted by A&SS

References in corpus (35)

• 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
• High-Resolution Rotation Curves and Galaxy Mass Models from THINGS
• Star Formation and Feedback in Smoothed Particle Hydrodynamic Simulations--I. Isolated Galaxies
• Measuring the inclination and mass-to-light ratio of axisymmetric galaxies via anisotropic Jeans models of stellar kinematics
• The redshift dependence of the structure of massive LCDM halos
• The unexpected diversity of dwarf galaxy rotation curves
• High-resolution mass models of dwarf galaxies from LITTLE THINGS
• Stellar Feedback in Dwarf Galaxy Formation
• The kinematic status and mass content of the Sculptor dwarf spheroidal galaxy
• High-resolution dark matter density profiles of THINGS dwarf galaxies: Correcting for non-circular motions
• Search for TeV Gamma-ray Emission from GRB 100621A, an extremely bright GRB in X-rays, with H.E.S.S
• Too Big to Fail in the Local Group
• 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
• Dark Matter Heating and Early Core Formation in Dwarf Galaxies
• Dissecting Galaxy Formation: I. Comparison Between Pure Dark Matter and Baryonic Models
• Early flattening of dark matter cusps in dwarf spheroidal galaxies
• Cores and Cusps in the Dwarf Spheroidals
• Dark matter and structure formation a review
• Determining the Nature of Dark Matter with Astrometry
• Shear and rotation in Chaplygin cosmology
• 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 unified solution to the small scale problems of the $\Lambda$CDM model II: introducing parent-satellite interaction
• The Maximum B-mode Polarization of the Cosmic Microwave Background from Inhomogeneous Reionization
• The flat density profiles of massive, and relaxed galaxy clusters

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• EDGE: Two routes to dark matter core formation in ultra-faint dwarfs
• Properties of Resonantly Produced Sterile Neutrino Dark Matter Subhalos
• Evidences against cuspy dark matter halos in large galaxies
• Deadly dark matter cusps vs faint and extended star clusters: Eridanus II and Andromeda XXV
• New mass bound on fermionic dark matter from a combined analysis of classical dSphs
• Bounding the mass of ultralight bosonic Dark Matter particles with the motion of the S2 star around Sgr A*
• Structural properties of non-spherical dark halos in Milky Way and Andromeda dwarf spheroidal galaxies
• Modifying PyUltraLight to model scalar dark matter with self-interactions
• Neutron Stars and Dark Matter
• The galaxy population in cold and warm dark matter cosmologies
• On the Possibility that Ultra-Light Boson halos host and form Super-massive Black Holes
• Mass-Temperature relation in $\Lambda$CDM and modified gravity
• Constraints on galileons from the positions of supermassive black holes
• On the change of old neutron star masses with galactocentric distance
• Constraints on dark matter annihilation and decay from the large-scale structure of the nearby universe
• Energy transfer from baryons to dark matter as a unified solution to small-scale structure issues of the $\Lambda$CDM model
• Dynamical friction in self-interacting ultralight dark matter
• Globular clusters as probes of dark matter cusp-core transformations
• Cusps in the center of galaxies: a real conflict with observations or a numerical artefact of cosmological simulations?
• Galaxy rotation favors prolate dark matter haloes
• On the dwarf galaxies rotation curves diversity problem
• Structure of the equivalent Newtonian systems in MOND N-body simulations. Density profiles and the core-cusp problem
• Calibrating galaxy formation effects in galactic tests of fundamental physics
• Barions and $\Lambda$CDM Model Problems
• Cluster density slopes from Dark Matter-Baryons Energy Transfer
• From particles to orbits: precise dark matter density profiles using dynamical information
• Correlations in the matter distribution in CLASH galaxy clusters
• A Mass Dependent Density Profile from Dwarfs to Clusters
• On the absence of a universal surface density, and a maximum Newtonian acceleration in dark matter haloes: consequences for MOND