Low-energy Population III supernovae and the origin of extremely metal-poor stars

Abstract

Some ancient, dim, metal-poor stars may have formed in the ashes of the first supernovae (SNe). If their chemical abundances can be reconciled with the elemental yields of specific Population III (Pop III) explosions, they could reveal the properties of primordial stars. But multidimensional simulations of such explosions are required to predict their yields because dynamical instabilities can dredge material up from deep in the ejecta that would otherwise be predicted to fall back on to the central remnant and be lost in one-dimensional (1D) models. We have performed two-dimensional (2D) numerical simulations of two low-energy Pop III SNe, a 12.4 Msun explosion and a 60 Msun explosion, and find that they produce elemental yields that are a good fit to those measured in the most iron-poor star discovered to date, SMSS J031300.36-670839.3 (J031300). Fallback on to the compact remnant in these weak explosions accounts for the lack of measurable iron in J031300 and its low iron-group abundances in general. Our 2D explosions produce higher abundances of heavy elements (atomic number Z > 20) than their 1D counterparts due to dredge-up by fluid instabilities. Since almost no Ni is ejected by these weak SNe, their low luminosities will prevent their detection in the near-infrared with the James Webb Space Telescope and future 30-m telescopes on the ground. The only evidence that they ever occurred will be in the fossil abundance record.

Accepted to MNRAS

References in corpus (25)

• Nucleosynthetic signatures of the first stars
• The Formation of Population III Binaries from Cosmological Initial Conditions
• Primordial Star Formation under the Influence of Far Ultraviolet Radiation: 1540 Cosmological Halos and the Stellar Mass Distribution
• Accretion onto the First Stellar Mass Black Holes
• Resolving the Formation of Protogalaxies. III. Feedback from the First Stars
• Building up the Population III initial mass function from cosmological initial conditions
• The Destruction of Cosmological Minihalos by Primordial Supernovae
• Super-luminous supernovae at redshifts of 2.05 and 3.90
• The HII Region of a Primordial Star
• Uncovering the Chemical Signature of the First Stars in the Universe
• Carbon-Enhanced Metal-Poor Stars: Relics from the Dark Ages
• Nucleosynthesis in a Primordial Supernova: Carbon and Oxygen Abundances in SMSS J031300.36-670839.31
• Recovery from population III supernova explosions and the onset of second generation star formation
• A very faint core-collapse supernova in M85
• Faint Population III supernovae as the origin of the most iron-poor stars
• Stellar Yields of Rotating First Stars. I. Yields of Weak Supernovae and Abundances of Carbon-enhanced Hyper Metal Poor Stars
• Observational Constraints on First-Star Nucleosynthesis. II. Spectroscopy of an Ultra Metal-Poor CEMP-no Star
• Lower Metal Enrichment of Virialized Gas in Minihalos
• A New Statistical Model for Population III Supernova Rates: Discriminating Between $\Lambda$CDM and WDM Cosmologies
• Supernova dust formation and the grain growth in the early universe: The critical metallicity for low-mass star formation
• The origin of the most iron-poor star
• The Molecular Hydrogen Deficit in Gamma-Ray Burst Afterglows
• Finding the First Cosmic Explosions. IV. 90 - 140 M${}_{\odot }$ Pair-Instability Supernovae
• Searching for Dust around Hyper Metal-Poor Stars
• Cosmological Impact of Population III Binaries

Cited by in corpus (20)

• Hydrodynamics of core-collapse supernovae and their progenitors
• The Initial mass function of the first stars inferred from extremely metal-poor stars
• Descendants of the first stars: the distinct chemical signature of second generation stars
• Black hole formation and fallback during the supernova explosion of a $40{\mathrm{M}}_{\odot }$ star
• The impact of fallback on the compact remnants and chemical yields of core-collapse supernovae
• The critical dark matter halo mass for Population III star formation: dependence on Lyman-Werner radiation, baryon-dark matter streaming velocity, and redshift
• Metal-poor star formation triggered by the feedback effects from Pop III stars
• Seeding the Second Star: enrichment from population III, dust evolution, and cloud collapse
• Radiation Hydrodynamical Simulations of the First Quasars
• The role of faint population III supernovae in forming CEMP stars in ultra-faint dwarf galaxies
• A Minimum Dilution Scenario for Supernovae and Consequences for Extremely Metal-Poor Stars
• Fingerprint of the first stars: multi-enriched extremely metal-poor stars in the TOPoS survey
• How the First Stars Regulated Star Formation. II. Enrichment by Nearby Supernovae
• Fallback accretion powered supernova light curves based on a neutrino-driven explosion simulation of a 40 Msun star
• Simulating Metal Mixing of Both Common and Rare Enrichment Sources in a Low Mass Dwarf Galaxy
• Probing the initial mass function of the first stars with transients
• Mono-enriched stars and Galactic chemical evolution -- Possible biases in observations and theory
• Detecting strongly lensed supernovae at z ~ 5-7 with LSST
• Signatures of Cosmic Ray Heating in 21-cm Observables
• Evolution of Magnetic Fields in Collapsing Star-forming Clouds under Different Environments