Nucleosynthesis in a Primordial Supernova: Carbon and Oxygen Abundances in SMSS J031300.36-670839.31

Abstract

SMSS J031300.36-670839.3 (hereafter SM0313-6708) is a sub-giant halo star, with no detectable Fe lines and large overabundances of C and Mg relative to Ca. We obtained VLT-UVES spectra extending to 3060 Angstroms showing strong OH A-X band lines enabling an oxygen abundance to be derived. The OH A-X band lines in SM0313-6708 are much stronger than the CH C-X band lines. Spectrum synthesis fits indicate an [O/C] ratio of 0.02 +- 0.175. Our high S/N UVES data also enabled us to lower the Fe abundance limit to [Fe/H]{3D},NLTE < -7.52 (3 sigma). These data support our previous suggestion that the star formed from the iron-poor ejecta of a single massive star Population III supernova.

arXiv comment23 pages, 4 figures, 1 table

References in corpus (19)

• The chemical composition of the Sun
• A grid of MARCS model atmospheres for late-type stars I. Methods and general properties
• The Nucleosynthetic Signature of Population III
• First stars V - Abundance patterns from C to Zn and supernova yields in the early Galaxy
• Nucleosynthesis and Evolution of Massive Metal-Free Stars
• Nucleosynthetic signatures of the first stars
• A single low-energy, iron-poor supernova as the source of metals in the star SMSS J 031300.36-670839.3
• CH in stellar atmospheres: an extensive linelist
• The Compactness of Presupernova Stellar Cores
• Signatures of intrinsic Li depletion and Li-Na anti-correlation in the metal-poor globular cluster NGC6397
• HE0107-5240, A Chemically Ancient Star.I. A Detailed Abundance Analysis
• HE1327-2326, an unevolved star with [Fe/H]<-5.0. I. A Comprehensive Abundance Analysis
• Explosive Nucleosynthesis in Hypernovae
• The chemical compositions of the extreme halo stars HE0107-5240 and HE1327-2326 inferred from 3D hydrodynamical model atmospheres
• Mixing in Zero and Solar Metallicity Supernovae
• Faint Population III supernovae as the origin of the most iron-poor stars
• On the oxygen abundance of HE0107-5240
• The Oxygen Abundance of HE 1327-2326
• 3D LTE spectral line formation with scattering in red giant stars

Cited by in corpus (61)

• The Pristine survey I: Mining the Galaxy for the most metal-poor stars
• Observational Constraints on First-Star Nucleosynthesis. I. Evidence for Multiple Progenitors of CEMP-no Stars
• Non-LTE line formation of Fe in late-type stars - III. 3D non-LTE analysis of metal-poor stars
• Where are the most ancient stars in the Milky Way?
• The Initial mass function of the first stars inferred from extremely metal-poor stars
• Beyond Assembly Bias: Exploring Secondary Halo Biases for Cluster-size Haloes
• Black hole formation and fallback during the supernova explosion of a $40{\mathrm{M}}_{\odot }$ star
• The role of binaries in the enrichment of the early Galactic halo. II. Carbon-Enhanced Metal-Poor Stars - CEMP-no stars
• Pop III $\text{i}$-process Nucleosynthesis and the Elemental Abundances of SMSS J0313-6708 and the Most Iron-Poor Stars
• Metal-Poor Stars Observed with the Magellan Telescope. III. New Extremely and Ultra Metal-Poor Stars from SDSS/SEGUE and Insights on the Formation of Ultra Metal-Poor Stars
• PSZ2LenS. Weak lensing analysis of the Planck clusters in the CFHTLenS and in the RCSLenS
• The impact of fallback on the compact remnants and chemical yields of core-collapse supernovae
• 3D NLTE analysis of the most iron-deficient star, SMSS0313-6708
• The lowest detected stellar Fe abundance: The halo star SMSS J160540.18-144323.1
• R-Process elements from magnetorotational hypernovae
• Binarity among CEMP-no stars: an indication of multiple formation pathways?
• The Pristine Survey IV: Approaching the Galactic metallicity floor with the discovery of an ultra metal-poor star
• Evidence for an aspherical Population III supernova explosion inferred from the hyper metal-poor star HE1327-2326
• Predicting the locations of possible long-lived low-mass first stars: Importance of satellite dwarf galaxies
• The SkyMapper DR1.1 Search for Extremely Metal-Poor Stars
• Bright Metal-Poor Stars from the Hamburg/ESO Survey. II. A Chemodynamical Analysis
• Abundances of carbon-enhanced metal-poor stars as constraints on their formation
• The Weak Lensing Masses of Filaments between Luminous Red Galaxies
• Chemical Abundance Signature of J0023+0307 -- A Second-Generation Main-Sequence Star with [Fe/H]<-6
• Exploring the Galaxy's halo and very metal-weak thick disk with SkyMapper and Gaia DR2
• The Mass Distribution of Population III Stars
• Approximate Bayesian Computation in Large Scale Structure: constraining the galaxy-halo connection
• Magnetic field amplification in accretion discs around the first stars: implications for the primordial IMF
• J0023+0307: A mega metal-poor dwarf star from SDSS/BOSS
• Nucleosynthesis in 2D Core-Collapse Supernovae of 11.2 and 17.0 M${}_{\odot }$ Progenitors: Implications for Mo and Ru Production
• Ultra metal-poor stars: Spectroscopic determination of stellar atmospheric parameters using iron Non-LTE line abundances
• A Minimum Dilution Scenario for Supernovae and Consequences for Extremely Metal-Poor Stars
• Spectroscopic Validation of Low-Metallicity Stars from RAVE
• High resolution spectroscopic follow-up of the most metal-poor candidates from SkyMapper DR1.1
• An in-depth spectroscopic examination of molecular bands from 3D hydrodynamical model atmospheres I. Formation of the G-band in metal-poor dwarf stars
• Atmospheric Beacons of Life from Exoplanets Around G and K Stars
• The R-Process Alliance: Spectroscopic Follow-up of Low-Metallicity Star Candidates from the Best & Brightest Survey
• Time-variable electromagnetic star-planet interaction: The TRAPPIST-1 system as an exemplary case
• The most iron-deficient stars as the polluted population III stars
• Low-energy Population III supernovae and the origin of extremely metal-poor stars
• Fallback accretion powered supernova light curves based on a neutrino-driven explosion simulation of a 40 Msun star
• Possible Atmospheric Diversity of Low Mass Exoplanets, some Central Aspects
• Toward $abinitio$ extremely metal poor stars
• Are Faint Supernovae Responsible for Carbon-Enhanced Metal-Poor Stars?
• Population III stars around the Milky Way
• Raising the observed metallicity floor with a 3D non-LTE analysis of SDSS J102915.14+172927.9
• Keck HIRES Spectroscopy of SkyMapper Commissioning Survey Candidate Extremely Metal-Poor Stars
• The chemical evolution of the solar neighbourhood for planet-hosting stars
• The universality of the rapid neutron-capture process revealed by a possible disrupted dwarf galaxy star
• A Direct Measurement of the High-Mass End of the Velocity Dispersion Function at $z\sim 0.55$ from SDSS-III/BOSS
• Three-dimensional hydrodynamical CO5BOLD model atmospheres of red giant stars. V. Oxygen abundance in the metal-poor giant HD 122563 from OH UV lines
• Chemical analysis of two extremely metal-poor stars HE 2148-2039 and HE 2155-2043
• An investigation of the formation and line properties of MgH in 3D hydrodynamical model stellar atmospheres
• Anisotropic neutrinos and gravitational waves from black hole neutrino-dominated accretion flows in fallback core-collapse supernovae
• Spectroscopic study of four metal-poor carbon stars from the Hamburg/ESO Survey: On confirming the low-mass nature of their companions
• Observational constraints on the origin of the elements. IX. 3D NLTE abundances of metals in the context of Galactic Chemical Evolution Models and 4MOST
• Probing the nucleosynthetic contribution of low-metallicity, low-mass star companions of CEMP stars
• Quantifying Element Importance for Mass Recovery from Population III Supernova Yield Fits
• Detailed Abundance Determination of Metal-Poor Stars with X-Shooter I. Unusual Chemistry in Halo Stars
• The R-Process Alliance: A Nearly Complete R-Process Abundance Template Derived from Ultraviolet Spectroscopy of the R-Process-Enhanced Metal-Poor Star HD 222925
• A Main Sequence CH-star in the globular cluster M55 (NGC 6809)