Constraining the Statistics of Population III Binaries

Abstract

We perform a cosmological simulation in order to model the growth and evolution of Population III (Pop III) stellar systems in a range of host minihalo environments. A Pop III multiple system forms in each of the ten minihaloes, and the overall mass function is top-heavy compared to the currently observed initial mass function in the Milky Way. Using a sink particle to represent each growing protostar, we examine the binary characteristics of the multiple systems, resolving orbits on scales as small as 20 AU. We find a binary fraction of ~36%, with semi-major axes as large as 3000 AU. The distribution of orbital periods is slightly peaked at < 900 yr, while the distribution of mass ratios is relatively flat. Of all sink particles formed within the ten minihaloes, ~50% are lost to mergers with larger sinks, and ~50% of the remaining sinks are ejected from their star-forming disks. The large binary fraction may have important implications for Pop III evolution and nucleosynthesis, as well as the final fate of the first stars.

16 pages, 14 figures, to appear in MNRAS

References in corpus (100)

• The cosmological simulation code GADGET-2
• Binary interaction dominates the evolution of massive stars
• The Nucleosynthetic Signature of Population III
• The Formation of the First Star in the Universe
• Concentrations of Dark Halos from their Assembly Histories
• The Formation of the First Stars. I. The Primordial Star Forming Cloud
• Physical Properties of Wolf-Rayet Stars
• Pre-Supernova Evolution of Massive Single and Binary Stars
• The Progenitor Stars of Gamma-Ray Bursts
• Rotating Massive Main-Sequence Stars I: Grids of Evolutionary Models and Isochrones
• On the properties of massive Population III stars and metal-free stellar populations
• Formation of the First Supermassive Black Holes
• The Formation of a Star Cluster: Predicting the Properties of Stars and Brown Dwarfs
• Magnetic fields of non-degenerate stars
• Evolution of rapidly rotating metal-poor massive stars towards gamma-ray bursts
• Simulations of Early Structure Formation: Primordial Gas Clouds
• The High Angular Resolution Multiplicity of Massive Stars
• Stellar evolution with rotation XI: Wolf-Rayet star populations at different metallicities
• Formation of Primordial Stars in a LCDM Universe
• Simulations on a Moving Mesh: The Clustered Formation of Population III Protostars
• Generic Spectrum and Ionization Efficiency of a Heavy Initial Mass Function for the First Stars
• The Formation and Fragmentation of Disks around Primordial Protostars
• Protostellar Feedback Halts the Growth of the First Stars in the Universe
• Protostar Formation in the Early Universe
• The Formation of Population III Binaries from Cosmological Initial Conditions
• Formation of the First Stars by Accretion
• Early Metal Enrichment of the Intergalactic Medium by Pregalactic Outflows
• The Galactic WN stars: Spectral analyses with line-blanketed model atmospheres versus stellar evolution models with and without rotation
• The first stars: formation of binaries and small multiple systems
• Radiation Hydrodynamical Evolution of Primordial H II Regions
• Formation of Primordial Protostars
• Gravitational fragmentation in turbulent primordial gas and the initial mass function of Population III stars
• Early reionization by miniquasars
• Accretion onto the First Stellar Mass Black Holes
• Formation of contact in massive close binaries
• Resolving the Formation of Protogalaxies. III. Feedback from the First Stars
• Rotational mixing in massive binaries: detached short-period systems
• The Propagation and Eruption of Relativistic Jets from the Stellar Progenitors of GRBs
• The Structure and Evolution of Early Cosmological HII Regions
• Population III stars: hidden or disappeared ?
• Mach Number Dependence of Turbulent Magnetic Field Amplification: Solenoidal versus Compressive Flows
• The First Galaxies: Chemical Enrichment, Mixing, and Star Formation
• The First Stars: Mass Growth Under Protostellar Feedback
• Effects of rotation on the evolution of primordial stars
• Binary star progenitors of long gamma-ray bursts
• The H II Region of the First Star
• H II regions: Witnesses to massive star formation
• Stellar black holes at the dawn of the universe
• Early Metal Enrichment by Pregalactic Outflows: II. Simulations of Blow-away
• X-ray Preionisation Powered by Accretion on the First Black Holes. I: a Model for the WMAP Polarisation Measurement
• Evolution of massive population III stars with rotation and magnetic fields
• Constraining the mass transfer in massive binaries through progenitor evolution models of Wolf-Rayet+O binaries
• The s process in massive stars at low metallicity. Effect of primary N14 from fast rotating stars
• The First Supernova Explosions in the Universe
• Small-scale dynamo action during the formation of the first stars and galaxies. I. The ideal MHD limit
• The aftermath of the first stars: massive black holes
• Effects of Rotation on the Minimum Mass of Primordial Progenitors of Pair Instability Supernovae
• Pre-galactic metal enrichment - The chemical signatures of the first stars
• Formation rates of core collapse SNe and GRBs
• Accretion onto Seed Black Holes in the First Galaxies
• Cosmic Reionisation by Stellar Sources: Population III Stars
• The Effect of Starburst Metallicity on Bright X-Ray Binary Formation Pathways
• The First Supernova Explosions: Energetics, Feedback, and Chemical Enrichment
• An Updated Look at Binary Characteristics of Massive Stars in the Cygnus OB2 Association
• Which Massive stars are Gamma-Ray Burst Progenitors?
• Local radiative feedback in the formation of the first protogalaxies
• Effect of Streaming Motion of Baryons Relative to Dark Matter on the Formation of the First Stars
• The Small-Scale Dynamo and Non-Ideal MHD in Primordial Star Formation
• The primordial binary population II: Recovering the binary population for intermediate mass stars in Sco OB2
• Rotation Speed of the First Stars
• The interplay between chemical and mechanical feedback from the first generation of stars
• The First Galaxies: Assembly with Black Hole Feedback
• Accretion onto a Primordial Protostar
• The Effects of Accretion Luminosity upon Fragmentation in the Early Universe
• The First Miniquasar
• Magnetic Field Amplification by Small-Scale Dynamo Action: Dependence on Turbulence Models and Reynolds and Prandtl Numbers
• Can Gamma-Ray Burst Jets Break Out the First Stars?
• The minimum stellar metallicity observable in the Galaxy
• Magnetic field amplification during gravitational collapse - Influence of initial conditions on dynamo evolution and saturation
• Protostellar Disk Dynamos and Hydromagnetic Outflows in Primordial Star Formation
• Effects of Varying the Three-Body Molecular Hydrogen Formation Rate in Primordial Star Formation
• Conditions for the Formation of First-Star Binaries
• Discovery of a Black-hole Mass - Period Correlation in Soft X-ray Transients and its Implication for Gamma-Ray Burst and Hypernova Mechanisms
• Rotation and Internal Structure of Population III Protostars
• Accretion modes in collapsars - prospects for GRB production
• Feedback From the First Supernovae in Protogalaxies:The Fate of the Generated Metals
• Fragmentation and Evolution of Molecular Clouds. I: Algorithm and First Results
• The observational signature of the first H II regions
• On the First Generation of Stars
• Do Ultraluminous X-Ray Sources Exist in Dwarf Galaxies?
• On Rejuvenation in Massive Binary Systems
• Variable Accretion Rates and Fluffy First Stars
• Long Duration X-Ray Flash and X-Ray Rich Gamma Ray Burst from Low Mass Population III Star
• Dissipation of Magnetic Flux in Primordial Star Formation: From Run-away Phase to Mass Accretion Phase
• WIMP DM and first stars: suppression of fragmentation in primordial star formation
• Gravitational wave background from population III binaries
• Did Massive Primordial Stars Preenrich the Lyman Alpha Forest?
• Suppression of accretion onto low-mass Population III stars
• A smoother end to the dark ages
• High-Entropy Polar Regions Around the First Protostars

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• One Hundred First Stars : Protostellar Evolution and the Final Masses
• Formation of the First Stars
• Primordial Star Formation under the Influence of Far Ultraviolet Radiation: 1540 Cosmological Halos and the Stellar Mass Distribution
• The Mass Spectrum of the First Stars
• Building up the Population III initial mass function from cosmological initial conditions
• Formation of Massive Primordial Stars: Intermittent UV Feedback with Episodic Mass Accretion
• TOPoS: II. On the bimodality of carbon abundance in CEMP stars. Implications on the early chemical evolution of galaxies
• Complete element abundances of nine stars in the r-process galaxy Reticulum II
• Formation of supermassive black hole seeds
• Gravitational Waves from the Remnants of the First Stars
• The Initial mass function of the first stars inferred from extremely metal-poor stars
• The Birth of a Massive First-Star Binary
• On the likelihood of detecting gravitational waves from Population III compact object binaries
• Formation pathway of Population III coalescing binary black holes through stable mass transfer
• Radiative Feedback from high mass X-ray binaries on the formation of the first galaxies and early reionization
• Formation and survival of Population III stellar systems
• Effect of lensing magnification on the apparent distribution of black hole mergers
• When did Population III star formation end?
• The Science of the Einstein Telescope
• The influence of streaming velocities and Lyman-Werner radiation on the formation of the first stars
• Carbon-Enhanced Metal-Poor Stars: Relics from the Dark Ages
• Population III Stars and Remnants in High Redshift Galaxies
• High Mass X-ray Binaries and the Cosmic 21-cm Signal: Impact of Host Galaxy Absorption
• Recovery from population III supernova explosions and the onset of second generation star formation
• Formation sites of Population III star formation: The effects of different levels of rotation and turbulence on the fragmentation behavior of primordial gas
• Legacy of star formation in the pre-reionization universe
• Baseline Metal Enrichment from Population III Star Formation in Cosmological Volume Simulations
• Gravitational Waves from Binary Mergers of Sub-solar Mass Dark Black Holes
• Gravitational wave background from Population III binary black holes consistent with cosmic reionization
• Physical Processes in Star Formation
• The First Stars: A Low-Mass Formation Mode
• Formation of the first stars and black holes
• Predicting the locations of possible long-lived low-mass first stars: Importance of satellite dwarf galaxies
• Gravitational waves from Population III binary black holes formed by dynamical capture
• Stellar Yields of Rotating First Stars. I. Yields of Weak Supernovae and Abundances of Carbon-enhanced Hyper Metal Poor Stars
• Search for subsolar-mass binaries in the first half of Advanced LIGO and Virgo's third observing run
• The suppression of direct collapse black hole formation by soft X-ray irradiation
• StarTrack predictions of the stochastic gravitational-wave background from compact binary mergers
• Gravitational instability in protostellar disks at low metallicities
• Stellar mass spectrum within massive collapsing clumps I. Influence of the initial conditions
• The Formation of Stellar Black Holes
• Heating the IGM by X-rays from Population III Binaries in High Redshift Galaxies
• Discovery of the most metal-poor damped Lyman-alpha system
• Magnetic field amplification in accretion discs around the first stars: implications for the primordial IMF
• A New Statistical Model for Population III Supernova Rates: Discriminating Between $\Lambda$CDM and WDM Cosmologies
• Trapping of HII regions in Population III star formation
• Binary black hole mergers from Population III stars: uncertainties from star formation and binary star properties
• An Ultra Metal-poor Star Near the Hydrogen-burning Limit
• Intermediate-mass black holes from Population III remnants in the first galactic nuclei
• Dynamical evolution of Population III stellar systems and the resulting binary statistics
• Effect of metallicity on the gravitational-wave signal from the cosmological population of compact binary coalescences
• A Population of Relic Intermediate-Mass Black Holes in the Halo of the Milky Way
• Magnetic fields in the formation of the first stars.--II Results
• Following the Cosmic Evolution of Pristine Gas III: The Observational Consequences of the Unknown Properties of Population III Stars
• The First Stars: formation under X-ray feedback
• Formation of the first stars
• Effects of stellar-mass primordial black holes on first star formation
• Spatially Extended 21 cm Signal from Strongly Clustered UV and X-Ray Sources in the Early Universe
• Early structure formation from primordial density fluctuations with a blue-tilted power spectrum
• The formation of protostellar binaries in primordial minihalos
• Formation, disruption and energy output of Population III X-ray binaries
• Stellar winds and metal enrichment from fast-rotating Population III stars
• Low-energy Population III supernovae and the origin of extremely metal-poor stars
• Massive binary black holes from Population II and III stars
• Fast-rotating massive Population~III stars as possible sources of extreme N-enrichment in high-redshift galaxies
• Formation of Massive and Wide First-star Binaries in Radiation Hydrodynamics Simulations
• Magnetar-Powered Supernovae in Two Dimensions. II. Broad-Line Supernovae Ic
• A new approach to determine optically thick H2 cooling and its effect on primordial star formation
• Probing the initial mass function of the first stars with transients
• Machine learning detects multiplicity of the first stars in stellar archaeology data
• Primordial magnetic fields in Population III star formation: a magnetised resolution study
• Exploring compact binary populations with the Einstein Telescope
• Gamma-ray bursts and Population III stars
• Rapidly rotating Population III stellar models as a source of primary nitrogen
• Population III star formation in an X-ray background: III. Periodic radiative feedback and luminosity induced by elliptical orbits
• Population III X-ray Binaries and their Impact on the Early Universe
• Very Massive Star Models: I. Impact of Rotation and Metallicity and Comparisons with Observations
• Gravitational waves from the remnants of the first stars in nuclear star clusters
• Dust in the first galaxies
• Long gamma-ray burst rate at very high redshift
• From dark matter halos to pre-stellar cores: High resolution follow-up of cosmological Lyman-Werner simulations
• Impact of magnetic fields on Population III star formation
• Population III stars around the Milky Way
• Gravitational waves from mergers of Population III binary black holes: roles played by two evolution channels
• Ionizing photon production of Population III stars: effects of rotation, convection, and initial mass function
• Raising the observed metallicity floor with a 3D non-LTE analysis of SDSS J102915.14+172927.9
• Non-ideal magnetohydrodynamic simulations of the first star formation: the effect of ambipolar diffusion
• The First Stars: formation under cosmic ray feedback
• Cosmological Impact of Population III Binaries
• Impact of Population III homogeneous stellar evolution on early cosmic reionisation
• Metal-enriched Galaxies in the First ~1 Billion Years: Evidence of a Smooth Metallicity Evolution at z ~ 5
• Search for Extremely Metal-Poor Stars with GEMINI-N/GRACES I. Chemical-Abundance Analysis
• Binary black hole mergers from Population III star clusters
• Distinguishing the impact and signature of black holes from different origins in early cosmic history
• The THESAN-ZOOM project: Population III star formation continues until the end of reionization
• Supernova explosions in magnetized, primordial dark matter halos
• Signatures of very massive stars: supercollapsars and their cosmological rate
• The Chemical Evolution of Iron-Peak Elements with Hypernovae
• Gravitational Fragmentation of Extremely Metal-poor Circumstellar Discs
• Neutrino production in Population III microquasars
• Formation of metal-free binaries: Impact of H${}_2$ line cooling and CIE cooling
• Classifying binary black holes from Population III stars with the Einstein Telescope: A machine-learning approach
• Maximal X-ray feedback in the pre-reionization universe
• Do fragmentation and accretion affect the stellar Initial Mass Function?
• The mass distribution of the first stars can be determined via the 21-cm signal
• Gravitational Wave Sources from Pop III Stars are Preferentially Located within the Cores of their Host Galaxies
• Effects of binary stellar populations on direct collapse black hole formation
• A Modified Initial Mass Function of the First Stars with Explodability Theory under Different Enrichment Scenarios
• Over-cooled haloes at z > 10: a route to form low-mass first stars
• Turbulence and its connection to episodic accretion in binary YSOs
• Fast and accurate parameter estimation of high-redshift sources with the Einstein Telescope
• Stellar Initial Mass Function over a range of redshifts
• Episodic accretion in binary protostars emerging from self-gravitating solar mass cores
• First Star Survivors as Metal-Rich Halo Stars that Experienced Supernova Explosions in Binary Systems
• Probing Massive Stars Around Gamma-Ray Burst Progenitors
• Population III star formation: multiple gas phases prevent the use of an equation of state at high densities
• Angular momentum distribution during the collapse of primordial star-forming clouds
• Reconstructing the star formation rate for compact binary populations with the Einstein telescope
• Zero Metallicity with Zero CPU Hours: Masses of the First Stars on the Laptop
• Impact of Population III stars on the astrophysical gravitational-wave background
• Ultraviolet photon production rates of the first stars: Impact on the He II $\lambda$ 1640 Å emission line from primordial star clusters and the 21-cm signal from cosmic dawn
• Type Ia Supernovae from First-generation Stars
• Detectability of Population III stellar remnants as X-ray binaries from tidal captures in the local Universe
• Population III Star Formation in an X-ray background: II. Protostellar Discs, Multiplicity and Mass Function of the Stars
• Searching for Low-mass Population III Stars Disguised as White Dwarfs
• Black Hole - Neutron Star and Binary Neutron Star Mergers from Population III and II stars
• Population III Star Formation in an X-ray background: I. Critical Halo Mass of Formation and Total Mass in Stars
• Intermediate-mass black holes and contribution to extragalactic background light from Population III stars in Milky Way-like galaxies
• Direct N-body simulations of rotating and extremely massive Population III star clusters