The First Galaxies: Assembly, Cooling and the Onset of Turbulence

Abstract

We investigate the properties of the first galaxies at z > 10 with highly resolved numerical simulations, starting from cosmological initial conditions and taking into account all relevant primordial chemistry and cooling. A first galaxy is characterized by the onset of atomic hydrogen cooling, once the virial temperature exceeds 10^4 K, and its ability to retain photoheated gas. We follow the complex accretion and star formation history of a 5*10^7 M_sun system by means of a detailed merger tree and derive an upper limit on the number of Population III (Pop III) stars formed prior to its assembly. We investigate the thermal and chemical evolution of infalling gas and find that partial ionization at temperatures > 10^4 K catalyses the formation of H2 and hydrogen deuteride, allowing the gas to cool to the temperature of the cosmic microwave background. Depending on the strength of radiative and chemical feedback, primordial star formation might be dominated by intermediate-mass Pop III stars formed during the assembly of the first galaxies. Accretion on to the nascent galaxy begins with hot accretion, where gas is accreted directly from the intergalactic medium and shock-heated to the virial temperature, but is quickly accompanied by a phase of cold accretion, where the gas cools in filaments before flowing into the parent halo with high velocities. The latter drives supersonic turbulence at the centre of the galaxy and could lead to very efficient chemical mixing. The onset of turbulence in the first galaxies thus likely marks the transition to Pop II star formation.

arXiv comment18 pages, 14 figures, published in MNRAS

References in corpus (121)

• First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Determination of Cosmological Parameters
• How Do Galaxies Get Their Gas?
• How Massive Single Stars End their Life
• Control of star formation by supersonic turbulence
• The Nucleosynthetic Signature of Population III
• The Formation of the First Star in the Universe
• In the Beginning: The First Sources of Light and the Reionization of the Universe
• The Formation of the First Stars. I. The Primordial Star Forming Cloud
• A General Theory of Turbulence-Regulated Star Formation, From Spirals to ULIRGs
• The Assembly and Merging History of Supermassive Black Holes in Hierarchical Models of Galaxy Formation
• Starburst-driven Mass Loss from Dwarf Galaxies: Efficiency and Metal Ejection
• An excursion set model of hierarchical clustering: Ellipsoidal collapse and the moving barrier
• The First Stars
• Massive Black Holes as Population III Remnants
• On the properties of massive Population III stars and metal-free stellar populations
• Formation of Supermassive Black Holes by Direct Collapse in Pregalactic Halos
• Formation of the First Supermassive Black Holes
• Cold gas accretion in galaxies
• Forming the First Stars in the Universe: The Fragmentation of Primordial Gas
• Simulations of Early Structure Formation: Primordial Gas Clouds
• Nucleosynthetic signatures of the first stars
• The Formation and Fragmentation of Primordial Molecular Clouds
• A stellar relic from the early Milky Way
• The Nature of Ultra-Luminous Compact X-Ray Sources in Nearby Spiral Galaxies
• Thermal and Fragmentation Properties of Star-forming Clouds in Low-metallicity Environments
• First stars, very massive black holes and metals
• Supermassive black hole formation during the assembly of pre-galactic discs
• Formation of Primordial Stars in a LCDM Universe
• Hydrodynamic Simulations of Galaxy Formation. II. Photoionization and the Formation of Low Mass Galaxies
• The Formation of the First Low-Mass Stars From Gas With Low Carbon and Oxygen Abundances
• Generic Spectrum and Ionization Efficiency of a Heavy Initial Mass Function for the First Stars
• HOP: A New Group-Finding Algorithm for N-body Simulations
• Gravitational Collapse in Turbulent Molecular Clouds. I. Gasdynamical Turbulence
• First-generation black-hole-forming supernovae and the metal abundance pattern of a very iron-poor star
• Second-Generation Objects in the Universe: Radiative Cooling and Collapse of Halos with Virial Temperatures Above 10^4 Kelvin
• Simulations of Pregalactic Structure Formation with Radiative Feedback
• The halo mass function from the dark ages through the present day
• The Physics of Star Formation
• Rapid growth of high redshift black holes
• Formation of the First Stars by Accretion
• The First Cosmic Structures and their Effects
• On the Initial Mass Function of Population III Stars
• Early Metal Enrichment of the Intergalactic Medium by Pregalactic Outflows
• The Binary Frequency Among Carbon-Enhanced, s-Process Rich, Metal-Poor Stars
• The Structure and Dynamical Evolution of Dark Matter Halos
• Formation of z ~ 6 quasars from hierarchical galaxy mergers
• Radiation Hydrodynamical Evolution of Primordial H II Regions
• Fragmentation of star-forming clouds enriched with the first dust
• Massive black hole seeds from low angular momentum material
• Resolving the Formation of Protogalaxies. III. Feedback from the First Stars
• The Structure and Evolution of Early Cosmological HII Regions
• Zero-Metallicity Stars and the Effects of the First Stars on Reionization
• Photoionization Feedback in Low--Mass Galaxies at High Redshift
• Low-Mass Relics of Early Star Formation
• Population III star formation in a Lambda CDM universe, I: The effect of formation redshift and environment on protostellar accretion rate
• The H II Region of the First Star
• High-Redshift Gamma-Ray Bursts from Population III Progenitors
• Early Metal Enrichment by Pregalactic Outflows: II. Simulations of Blow-away
• Population III star formation in a Lambda CDM universe, II: Effects of a photodissociating background
• Resolving the Formation of Protogalaxies. II. Central Gravitational Collapse
• Probing the Formation of the First Low-Mass Stars with Stellar Archaeology
• The Formation of the First Stars I. Mass Infall Rates, Accretion Disk Structure and Protostellar Evolution
• Three Epochs of Star Formation in the High Redshift Universe
• Early Cosmological HII/HeIII Regions and Their Impact on Second-Generation Star Formation
• The Destruction of Cosmological Minihalos by Primordial Supernovae
• Quasars at z=6: the survival of the fittest
• The Fate of the First Galaxies. II. Effects of Radiative Feedback
• The First Supernova Explosions in the Universe
• The aftermath of the first stars: massive black holes
• Feedback from Galaxy Formation: Production and Photodissociation of Primordial Molecular Hydrogen
• A Holistic Scenario of Turbulent Molecular Cloud Evolution and Control of the Star Formation Efficiency. First Tests
• The effect of gravitational-wave recoil on the demography of massive black holes
• Two populations of metal-free stars in the early Universe
• The cooling of shock-compressed primordial gas
• Suppression of H_2 Cooling in the Ultraviolet Background
• The HII Region of a Primordial Star
• The Fate of the First Galaxies. I. Self-Consistent Cosmological Simulations with Radiative Transfer
• Early Enrichment of the Intergalactic Medium and its Feedback on Galaxy Formation
• Resolving the Formation of Protogalaxies. I. Virialization
• The First Supernova Explosions: Energetics, Feedback, and Chemical Enrichment
• The Era of Massive Population III Stars: Cosmological Implications and Self-Termination
• Supernova Explosions in the Early Universe: Evolution of Radiative Remnants and the Halo Destruction Efficiency
• Critical Metallicity and Fine-Structure Emission of Primordial Gas Enriched by the First Stars
• Local radiative feedback in the formation of the first protogalaxies
• Pregalactic Black Hole Formation with an Atomic Hydrogen Equation of State
• How rapidly do supermassive black hole "seeds" grow at early times?
• The Formation of the First Globular Clusters in Dwarf Galaxies Before the Epoch of Reionization
• The first generation of stars in LCDM cosmology
• Accretion onto a Primordial Protostar
• Early structure in LCDM
• The First Miniquasar
• The Formation of the First Stars in the Universe
• On the formation of dwarf galaxies and stellar halos
• Reionisation, chemical enrichment and seed black holes from the first stars: is Population III important?
• Formation of Massive Primordial Stars in a Reionized Gas
• Was Star-Formation Suppressed in High-Redshift Minihalos?
• Does Radiative Feedback by the First Stars Promote or Prevent Second Generation Star Formation?
• How Very Massive Metal Free Stars Start Cosmological Reionization
• The History and Morphology of Helium Reionization
• On the photodissociation of H2 by the first stars
• Massive black hole remnants of the first stars in galactic haloes
• The Transition from the First Stars to the Second Stars in the Early Universe
• Formation of Population III Stars in Fossil HII Regions: Significance of HD
• Secondary Star Formation in a Population III Object
• Early Structure Formation and Reionization in a Cosmological Model with a Running Primordial Power Spectrum
• First Structure Formation: A Simulation of Small Scale Structure at High Redshift
• Cosmological Effects of the First Stars: Evolving Spectra of Population III
• Dust-cooling--induced Fragmentation of Low-metallicity Clouds
• UV Radiative Feedback on High-Redshift Proto-Galaxies
• Feedback From the First Supernovae in Protogalaxies:The Fate of the Generated Metals
• Low-Mass Star Formation, Triggered by Supernova in Primordial Clouds
• Star formation at very low metallicity. II: On the insignificance of metal-line cooling during the early stages of gravitational collapse
• The mass spectrum of metal-free Stars resulting from photodissociation feedback: A scenario for the formation of low-mass population III stars
• Lower Metal Enrichment of Virialized Gas in Minihalos
• Violence in the Dark Ages
• On the minimum mass of reionization sources
• The role of HD cooling in primordial star formation
• Capturing Halos at High Redshifts
• Induced Formation of Primordial Low-Mass Stars
• On Black Hole Mass Estimation from X-ray Spectra of Ultraluminous X-ray Sources
• Did Massive Primordial Stars Preenrich the Lyman Alpha Forest?

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