The abundance of dark galaxies

Abstract

We show that gas in a large fraction of low mass dark matter halos may form Toomre stable disks, if angular momentum is conserved when the gas contracts. Such halos would be stable to star formation and therefore remain dark. This may potentially explain the discrepancy between the predicted and observed number of dwarf satellites in the Local Group, as well as the deviation between the predicted and the observed faint end slope of the luminosity function. The above mechanism does not require a strong variation of the baryon fraction with the virial mass of the dark halo. We show that model fits to rotation curves are also consistent with this hypothesis: none of the observed galaxies lie in the region of parameter space forbidden by the Toomre stability criterion.

arXiv commentSubmitted to MNRAS

References in corpus (54)

• A Universal Density Profile from Hierarchical Clustering
• Dark Matter Substructure in Galactic Halos
• Large scale bias and the peak background split
• Where are the missing galactic satellites?
• The Formation of Galactic Disks
• Observational evidence for self-interacting cold dark matter
• Hierarchical Galaxy Formation
• Cold and Fuzzy Dark Matter
• Mass function of dark matter halos
• The Cosmic Baryon Budget
• Halo Formation in Warm Dark Matter Models
• A universal angular momentum profile for galactic halos
• Effect of Reionization on the Structure Formation in the Universe
• A measurement of the cosmological mass density from clustering in the 2dF Galaxy Redshift Survey
• The Relationship Between Gas Content and Star Formation in Molecule-Rich Spiral Galaxies
• Merger rates in hierarchical models of galaxy formation. II: Comparison with N-body simulations
• The Luminosity Function of Galaxies in SDSS Commissioning Data
• Gone with the wind: the origin of S0 galaxies in clusters
• Direct Detection of CDM Substructure
• The Formation of Disk Galaxies
• The Las Campanas Redshift Survey
• Cosmology from Maxima-1, Boomerang and COBE/DMR CMB Observations
• The Effects of Photoionization on Galaxy Formation - I: Model and Results at z=0
• Can Photoionization Squelching Resolve the Sub-structure Crisis?
• Optical Rotation Curves and Linewidths for Tully-Fisher Applications
• The Effects of Photoionization on Galaxy Formation - II: Satellites in the Local Group
• Repulsive Dark Matter
• Hierarchical galaxy formation and substructure in the Galaxy's stellar halo
• Dwarf Galaxy Rotation Curves and the Core Problem of Dark Matter Halos
• Tidal stirring and the origin of dwarf spheroidals in the Local Group
• The dearth of halo dwarf galaxies: is there power on short scales?
• The Galaxy Luminosity Function at z < 0.05: Dependence on Morphology
• Large Scale Structure Tests of Warm Dark Matter
• The 2dF Galaxy Redshift Survey: The amplitudes of fluctuations in the 2dFGRS and the CMB, and implications for galaxy biasing
• Disk galaxies at Z=0 and at High Redshift: an explanation of the observed evolution of damped Ly-alpha systems
• Flux ratios as a probe of dark substructures in quadruple-image gravitational lenses
• Gas Rich Dwarf Spheroidals
• Squelched Galaxies and Dark Halos
• Galaxy Formation and Evolution: Low Surface Brightness Galaxies
• The Angular Momentum Content of Dwarf Galaxies: New Challenges for the Theory of Galaxy Formation
• CDM and Strong Lensing: Concord or Conflict?
• Maximum Disk Mass Models for Spiral Galaxies
• B1422+231: The influence of mass substructure on strong lensing
• Decaying Cold Dark Matter Model and Small-Scale Power
• The Impact of Cooling and Feedback on Disc Galaxies
• The Velocity Function of Galaxies
• Galaxy-dark matter correlations applied to galaxy-galaxy lensing: predictions from the semi-analytic galaxy formation models
• Globular Cluster Systems and the Missing Satellite Problem: Implications for Cold Dark Matter Models
• A Targeted Survey for HI Clouds in Galaxy Groups
• The Space Density of Primordial Gas Clouds near Galaxies and Groups and their Relation to Galactic HVCs
• The Expected Mass Function for Low Mass Galaxies in a CDM Cosmology: Is There a Problem?
• QSO Absorption Line Constraints on Intragroup High-Velocity Clouds
• The Onset of the Cold HI Phase in Disks of Protogalaxies
• An observational constraint on gravitational lensing by objects of mass 10^(9.5) - 10^(10.9) Mo

Cited by in corpus (57)

• Constraining Galaxy Formation and Cosmology with the Conditional Luminosity Function of Galaxies
• Simultaneous ram pressure and tidal stripping; how dwarf spheroidals lost their gas
• Structural Parameters of Thin and Thick Disks in Edge-On Disk Galaxies
• The Origin and Evolution of the Mass-Metallicity Relationship for Galaxies: Results from Cosmological N-Body Simulations
• Linking Early and Late Type Galaxies to their Dark Matter Haloes
• The Metallicity of Galaxy Disks: Infall versus Outflow
• The HIPASS Catalogue: III - Optical Counterparts & Isolated Dark Galaxies
• Linking Gas Fractions to Bimodalities in Galaxy Properties
• Early Gas Stripping as the Origin of the Darkest Galaxies in the Universe
• A radial mass profile analysis of the lensing cluster MS2137-23
• Dark halo properties from rotation curves
• A Study of Edge-On Galaxies with the Hubble Space Telescope's Advanced Camera for Surveys. II. Vertical distribution of the resolved stellar population
• Coupled dark matter-dark energy in light of near Universe observations
• A Dark Hydrogen Cloud in the Virgo Cluster
• Dark Matter Subhaloes in Numerical Simulations
• The Effects of Photoionization on Galaxy Formation -- III: Environmental Dependence in the Luminosity Function
• Scaling Relations of Dwarf Galaxies without Supernova-Driven Winds
• A New Prescription for Protogalactic Feedback and Outflows: Where Have All the Baryons Gone?
• Charged-particle decay and suppression of small-scale power
• The formation and evolution of bars in low surface brightness galaxies with cold dark matter halos
• GaBoDS: The Garching-Bonn Deep Survey: VI. Cosmic shear analysis
• (Almost) Dark HI Sources in the ALFALFA Survey: The Intriguing Case of HI1232+20
• A Limit on the Cosmological Mass Density and Power Spectrum from the Rotation Curves of Low Surface Brightness Galaxies
• Baryonic Conversion Tree: The global assembly of stars and dark matter in galaxies from the SDSS
• ESO215-G?009: An Extreme HI-Rich Dwarf Irregular Galaxy
• The Distribution of Dark Matter in Galaxies: a Constant-Density Halo around DDO 47
• On Star Formation and the Non-Existence of Dark Galaxies
• What is a Galaxy? Cast your vote here...
• 21-cm synthesis observations of VIRGOHI 21 - a possible dark galaxy in the Virgo Cluster
• A blind HI survey in the Canes Venatici region
• Gravitational lensing as a probe of cold dark matter subhalos
• The Minimum Amount of Stars a Galaxy Will Form
• The role of spin in the formation and evolution of galaxies
• The Cosmological Significance of High-Velocity Cloud Complex H
• Stellar and Gas properties of High HI Mass-to-Light Ratio Galaxies in the Local Universe
• The existence and detection of optically dark galaxies by 21cm surveys
• Detection of broad 21-cm absorption at z = 0.656 in the complex sight-line towards 3C336
• A Virgo Environmental Survey Tracing Ionised Gas Emission (VESTIGE).X. Formation of a red ultra-diffuse galaxy and an almost dark galaxy during a ram-pressure stripping event
• Gamma rays from the neutralino dark matter annihilations in the Milky Way substructures
• HI Selected Galaxies in the Sloan Digital Sky Survey II: The Colors of Gas-Rich Galaxies
• The ALFALFA Almost-Dark Galaxy AGC~229101: A Two Billion Solar Mass HI Cloud with a Very Low Surface Brightness Optical Counterpart
• NOIRCAT - The Northern HIPASS Optical/IR Catalogue
• Updated Analysis of a "Dark" Galaxy and its Blue Companion in the Virgo Cloud HI 1225+01
• A weak lensing analysis of a STIS dark-lens candidate
• The distribution of dark galaxies and spin bias
• Cosmological constraints from the masses and abundances of L* galaxies
• The detection of a massive chain of dark HI clouds in the GAMA G23 Field
• Satellite survival in cold dark matter cosmology
• Strong lensing by subhalos in the dwarf-galaxy mass range I: Image separations
• Probing satellite galaxies in the Local Group by using FAST
• Strong Lensing by Subhalos in the Dwarf-Galaxy Mass Range II: Detection Probabilities
• A Dark Galaxy in the Virgo Cluster Imaged at 21-cm
• The FAST Ursa Major supergroup HI survey (FUMaS): catalog and HI mass function
• Implications for the missing low-mass galaxies (satellites) problem from cosmic shear
• Red Halos of Galaxies - Reservoirs of Baryonic Dark Matter?
• "Dark galaxies" and local very metal-poor gas-rich galaxies: possible interrelations
• Prospects for CDM sub-halo detection using high angular resolution observations