The Birth of a Massive First-Star Binary

Abstract

We study the formation of massive Population III binary stars using a newly developed radiation hydrodynamics code with the adaptive mesh refinement and adaptive ray-tracing methods. We follow the evolution of a typical primordial star-forming cloud obtained from a cosmological hydrodynamics simulation. Several protostars form as a result of disk fragmentation and grow in mass by the gas accretion, which is finally quenched by the radiation feedback from the protostars. Our code enables us, for the first time, to consider the feedback by both the ionizing and dissociating radiation from the multiple protostars, which is essential for self-consistently determining their final masses. At the final step of the simulation, we observe a very wide ($\gtrsim 10^4\mathrm{au}$) binary stellar system consisting of $60$ and $70M_{\odot }$ stars. One of the member stars also has two smaller mass ($10M_{\odot }$) companion stars orbiting at $200$ and $800\mathrm{au}$, making up a mini-triplet system. Our results suggest that massive binary or multiple systems are common among Population III stars.

6 pages, 3 figures, published in ApJL, movie available at https://www.youtube.com/watch?v=794O0yGWGp0

References in corpus (40)

• Observation of Gravitational Waves from a Binary Black Hole Merger
• The Formation of the First Star in the Universe
• The Formation of the First Stars. I. The Primordial Star Forming Cloud
• One Hundred First Stars : Protostellar Evolution and the Final Masses
• Simulations on a Moving Mesh: The Clustered Formation of Population III Protostars
• Evolution of Massive Protostars with High Accretion Rates
• 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
• Formation of the First Stars by Accretion
• 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
• The first stars: formation of binaries and small multiple systems
• Formation of Primordial Protostars
• Possible Indirect Confirmation of the Existence of Pop III Massive Stars by Gravitational Wave
• Building up the Population III initial mass function from cosmological initial conditions
• The Formation of the First Stars II. Radiative Feedback Processes and Implications for the Initial Mass Function
• Evolution of Massive Protostars via Disk Accretion
• The First Stars: Mass Growth Under Protostellar Feedback
• Hydrodynamics of circumbinary accretion: Angular momentum transfer and binary orbital evolution
• Stellar black holes at the dawn of the universe
• The Formation of the First Stars I. Mass Infall Rates, Accretion Disk Structure and Protostellar Evolution
• Formation of Massive Primordial Stars: Intermittent UV Feedback with Episodic Mass Accretion
• Enzo+Moray: Radiation Hydrodynamics Adaptive Mesh Refinement Simulations with Adaptive Ray Tracing
• Constraining the Statistics of Population III Binaries
• Gravitational Waves from the Remnants of the First Stars
• Hydrodynamic Torques in Circumbinary Accretion Disks
• Adaptive Ray Tracing for Radiative Transfer around Point Sources
• On the likelihood of detecting gravitational waves from Population III compact object binaries
• The Effects of Accretion Luminosity upon Fragmentation in the Early Universe
• 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
• Merge or survive: Number of Population III stars per minihalo
• Self-gravitational Magnetohydrodynamics with Adaptive Mesh Refinement for Protostellar Collapse
• An Upper Limit on the Mass of a Primordial Star due to the Formation of an HII Region: The Effect of Ionizing Radiation Force
• Star formation in turbulent molecular clouds with colliding flow
• Modeling UV Radiation Feedback from Massive Stars: I. Implementation of Adaptive Ray Tracing Method and Tests
• Hybrid Adaptive Ray-Moment Method (HARM${}^2$): A Highly Parallel Method for Radiation Hydrodynamics on Adaptive Grids
• Forming Pop III binaries in self-gravitating disks: how to keep the orbital angular momentum
• The role of the H${}_2$ adiabatic index in the formation of the first stars

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• The low-end of the black hole mass function at cosmic dawn
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• The Science of the Einstein Telescope
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• The Population III origin of GW190521
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• Impact of the cosmic background radiation on the initial mass function of metal-poor stars
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• Gravitational Wave Astronomy With TianQin
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• Impact of the Primordial Stellar Initial Mass Function on the 21-cm Signal
• A needle in a haystack? Catching Pop III stars in the Epoch of Reionization: I. Pop III star forming environments
• Unveiling early black hole growth with multi-frequency gravitational wave observations
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• Modeling Supermassive Primordial Stars with MESA
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• The formation of globular clusters with top-heavy initial mass functions
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• Impact of cosmic rays on the global 21-cm signal during cosmic dawn
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