Line formation in solar granulation: IV. [O I], OI and OH lines and the photospheric O abundance

Abstract

The solar photospheric oxygen abundance has been determined from [OI], OI, OH vibration-rotation and OH pure rotation lines by means of a realistic time-dependent, 3D, hydrodynamical model of the solar atmosphere. In the case of the OI lines, 3D non-LTE calculations have been performed, revealing significant departures from LTE as a result of photon losses in the lines. We derive a solar oxygen abundance of log O = 8.66 +/- 0.05. All oxygen diagnostics yield highly consistent abundances, in sharp contrast with the results of classical 1D model atmospheres. This low value is in good agreement with measurements of the local interstellar medium and nearby B stars. This low abundance is also supported by the excellent correspondence between lines of very different line formation sensitivities, and between the observed and predicted line shapes and center-to-limb variations. Together with the corresponding down-ward revisions of the solar carbon, nitrogen and neon abundances, the resulting significant decrease in solar metal mass fraction to Z = 0.0126 can, however, potentially spoil the impressive agreement between predicted and observed sound speed in the solar interior determined from helioseismology.

Accepted for A&A, 18 pages, Fig. 3 and 4 here degraded. The article with high resolution figures is available from http://www.mso.anu.edu.au/~martin/publications.html

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• Generalised form factor dark matter in the Sun
• Oxygen Abundances in the Milky Way Using X-ray Absorption Measurements Towards Galaxy Clusters
• High-Resolution Absorption Spectroscopy of Multi-phase, High-Metallicity Gas Associated with the Luminous Quasar HE 0226-4110
• Stellar Nucleosynthesis in the Hyades Open Cluster
• Radiation hydrodynamics in simulations of the solar atmosphere
• Discovery of a massive variable star with Z=Zo/36 in the galaxy DDO 68
• Non-linear modelling of beat Cepheids: Resonant and non-resonant models
• A multisite photometric study of two unusual Beta Cep stars: the magnetic V2052 Oph and the massive rapid rotator V986 Oph
• The contrast of magnetic elements in synthetic CH- and CN-band images of solar magnetoconvection
• A Photometric and Spectroscopic Search for White Dwarfs in the Open Clusters NGC 6633 and NGC 7063
• The Galactic Halo's O VI Resonance Line Intensity
• A 2D multiwavelength study of the ionized gas and stellar population in the Giant HII Region NGC 588
• Cross-calibration of CO- vs dust-based gas masses and assessment of the dynamical mass budget in Herschel-SDSS Stripe82 galaxies
• Constraints on opacities from complex asteroseismology of B-type pulsators: the $\beta$ Cephei star $\theta$ Ophiuchi
• The Metallicity of Diffuse Intrahalo Light
• An estimate of the time variation of the abundance gradient from planetary nebulae II. Comparison with open clusters, cepheids and young objects
• Accurate luminosities from the oxygen 7771-4 A triplet and the fundamental parameters of F-G supergiants
• Perspectives in Global Helioseismology, and the Road Ahead
• Influence of local treatments of convection upon solar p mode excitation rates
• Asteroseismology
• Rotation and surface abundance peculiarities in A-type stars
• The photospheric solar oxygen project: III. Investigation of the centre-to-limb variation of the 630nm [OI]-NiI blend
• On the hydrostatic stratification of the solar tachocline
• Eclipsing binaries observed with the WIRE satellite I. Discovery and photometric analysis of the new bright A0IV eclipsing binary Psi Centauri
• On the determination of oxygen abundances in chromospherically active stars
• The blue supergiant Sher 25 and its intriguing hourglass nebula
• On the optical counterpart of NGC300 X-1 and the global Wolf-Rayet content of NGC300
• O/H in the Local Bubble
• Interstellar Medium Oxygen Abundances of Dwarf Irregular Galaxies in Centaurus A and Nearby Groups
• On plasma radiative properties in stellar conditions
• RR Lyrae variables in Galactic globular clusters V. The case of M3 pulsators
• Simulations of Mixed Morphology Supernova Remnants With Anisotropic Thermal Conduction
• The photospheric solar oxygen project: II. Non-concordance of the oxygen abundance derived from two forbidden lines
• Supernova 2013fc in a circumnuclear ring of a luminous infrared galaxy: the big brother of SN 1998S
• Lithium spectral line formation in stellar atmospheres. The impact of convection and NLTE effects
• The energy of waves in the photosphere and lower chromosphere: IV. Inversion results of Ca II H spectra
• Theoretical model atmosphere spectra used for the calibration of infrared instruments
• A high mass progenitor for the Type Ic Supernova 2007gr inferred from its environment
• A decrease of the gas exchanges between galaxies and the IGM, from 12 to 6 billion years ago
• Period doubling and Blazhko modulation in BL Herculis hydrodynamic models
• HS 2134+0400 - new very metal-poor galaxy, a representative of void population?
• Oxygen and Neon Abundances of B-Type Stars in Comparison with the Sun
• Variable turbulent convection as the cause of the Blazhko effect - testing the Stothers model
• Multiphase Plasma in Sub-Damped Lyman Alpha Systems: A Hidden Metal Reservoir
• Effect of electromagnetic dipole dark matter on energy transport in the solar interior
• The origin of the supersoft X-ray--optical/UV flux anticorrelation in the symbiotic binary AG Draconis
• The Abundance of Deuterium in the Warm Neutral Medium of the Lower Galactic Halo
• An asteroseismic study of the Delta Scuti star 44 Tau
• On the reliability of CIV 1549 as an abundance indicator for high redshift star-forming galaxies
• The Quiet-Sun Photosphere and Chromosphere
• Multi-wavelength Study of Young Massive Star Clusters in the Interacting Galaxy ARP 24
• Sensitivity of solar off-limb line profiles to electron density stratification and the velocity distribution anisotropy
• Continuum intensity and [O I] spectral line profiles in solar 3D photospheric models: the effect of magnetic fields
• Galaxies at Redshift ~0.5 Around Three Closely Spaced Quasar Sightlines
• GAME: GAlaxy Machine learning for Emission lines
• Interstellar Grains -- The 75th Anniversary
• New light on the old problem of lithium pre--MS depletion: models with 2D RHD convection
• Seismic inversion of the solar entropy: A case for improving the Standard Solar Model
• ISM chemistry in metal rich environments: molecular tracers of metallicity
• Spatially-resolved HST Grism Spectroscopy of a Lensed Emission Line Galaxy at z~1
• High-quality Spectrophotometry of the Planetary Nebula in the Fornax dSph
• An Upper Mass Limit on a Red Supergiant Progenitor for the Type II-Plateau Supernova SN 2006my
• Updated constraints on velocity and momentum-dependent asymmetric dark matter
• Probing Structure in Cold Gas at $z\lesssim 1$ with Gravitationally Lensed Quasar Sight Lines
• Emission Line Spectroscopy of a Damped Lyman-alpha Absorbing Galaxy at z = 0.437
• Coronal Structure and Abundances in Young Fast Rotators
• The discrepancy in G-band contrast: Where is the quiet Sun?
• The importance of stochasticity in determining galaxy emissivities and UV LFs during cosmic dawn and reionization
• Excitation and charge transfer in low-energy hydrogen atom collisions with neutral oxygen
• Thermodynamic fluctuations in solar photospheric three-dimensional convection simulations and observations
• Rotating Solar Models with Low Metal Abundances as Good as Those with High Metal Abundances
• What have we learned from helioseismology, what have we really learned, and what do we aspire to learn?
• Interpreting the star formation - extinction relation with MaNGA
• Abundances and kinematics of a candidate sub-damped Lyman-alpha galaxy toward PHL 1226
• The star formation history and chemical evolution of star forming galaxies in the nearby universe
• Very metal-poor galaxies: ionized gas kinematics in nine objects
• An Upper Bound to the Space Density of Interstellar Comets
• Influence of NLTE effects in Fe I lines on inverted atmosphere II. 6301 A and 6302 A lines formed in 3DNLTE
• Solar models with new low-metal abundances
• Sulphur abundances in disk stars as determined from the forbidden 10821 A [SI] line
• Determining The Galactic Halo's Emission Measure from UV and X-ray Observations
• Age distribution of the central stars of galactic disk planetary nebulae
• The effect of heavy element opacity on pre-main sequence Li depletion
• Numerical non-LTE 3D radiative transfer using a multigrid method
• The Compact Star-Forming Complex at the Heart of NGC 253
• NLTE modelling of integrated light spectra. Abundances of barium, magnesium, and manganese in a metal-poor globular cluster
• The G-dwarf problem in the Galaxy
• An extended and refined grid of 3D STAGGER model atmospheres. Processed snapshots for stellar spectroscopy
• Asteroseismic analysis of the CoRoT target HD49933
• Carbon and Oxygen abundances across the Hertzsprung gap
• The Solar Heavy Element Abundances: II. Constraints from Stellar Atmospheres
• The [alpha/Fe] ratios of very metal-poor stars within the IGIMF theory
• The binary nature of the Galactic Centre X-ray source CXOGC J174536.1-285638
• The Solar Oxygen Abundance from an Empirical Three-Dimensional Model
• The Neon Abundance of Galactic Wolf-Rayet Stars
• Influence of Inelastic Collisions with Hydrogen Atoms on Non-LTE Oxygen Abundance Determination in the Sun and late-type stars
• Euclid preparation. XXX. Performance assessment of the NISP Red-Grism through spectroscopic simulations for the Wide and Deep surveys
• Light bosons and photospheric solutions to the solar abundance problem
• Simulation of energy transport by dark matter scattering in stars
• Quasar Sightline and Galaxy Evolution (QSAGE) survey -- II. Galaxy overdensities around UV luminous quasars at z=1-2
• Quantitative comparison of opacities calculated using the $R$-matrix and Distorted-Wave methods: Fe XVII
• The interstellar medium of dwarf galaxies: new insights from Machine Learning analysis of emission line spectra
• 1D atmosphere models from inversion of Fe I 630 nm observations with an application to solar irradiance studies
• Extended atomic data for oxygen abundance analyses
• Rotational modulation in A and F stars: Magnetic stellar spots or convective core rotation?
• The solar photospheric abundance of zirconium
• Models of $\mu$ Her with asteroseismic constraints
• Calibration of the pre-main sequence RS Cha binary system
• Mid-Infrared diagnostics of metal-rich HII regions from VLT and Spitzer Spectroscopy of Young Massive Stars in W31
• The optical spectra of Spitzer 24 micron galaxies in the COSMOS field: II. Faint infrared sources in the zCOSMOS-bright 10k catalogue
• Molecular gas properties of Q1700-MD94: a massive, main-sequence galaxy at $z\approx 2$
• Sulphur abundances in Terzan 7
• Carbon-rich RR Lyr type stars
• Predictions of the extent of self-enrichment in oxygen of giant metal-poor HII regions
• Neon Abundances from a Spitzer/IRS Survey of Wolf-Rayet Stars
• Ariel stellar characterisation II. Chemical abundances of carbon, nitrogen, and oxygen for 181 planet-host FGK dwarf stars
• Shining Light on Merging Galaxies I: The Ongoing Merger of a Quasar with a `Green Valley' Galaxy
• Hydrodynamical model atmospheres and 3D spectral synthesis
• Helioseismic inference of the solar radiative opacity
• Chemical evolution of the Galactic bulge as traced by microlensed dwarf and subgiant stars. VIII. Carbon and oxygen
• Impact of the new solar abundances on the calibration of the PMS binary system RS Cha
• X-rays from Green Pea Analogs
• Compact stellar systems in the polar ring galaxies NGC 4650A and NGC 3808B: Clues to polar disk formation
• Modeling the near-UV band of GK stars, Paper II: NLTE models
• The 2003-4 multisite photometric campaign for the Beta Cephei and eclipsing star 16 (EN) Lacertae with an Appendix on 2 Andromedae, the variable comparison star
• Large and small-scale structure of the Intermediate and High Velocity Clouds towards the LMC and SMC
• Unresolved Rossby and gravity modes in 214 A and F stars showing rotational modulation
• Eclipsing Spotted Giant Star With K2 and Historical Photometry
• IPOPv2 online service for the generation of opacity tables
• Oxygen abundance of open cluster dwarfs
• Berkeley 22, an old and distant open cluster towards the Galactic anticentre
• Spatially resolved measurements of the solar photospheric oxygen abundance
• Intriguing triple-mode RR Lyrae star with period doubling
• An Artificial Neural Network Approach to the Solution of Molecular Chemical Equilibrium
• A globular cluster in the dwarf galaxy Sextans B
• Imagery and long-slit spectroscopy of the Polar-Ring Galaxy AM2020-504
• Uncertainties in the solar photospheric oxygen abundance
• Relativistic supernova 2009bb exploded close to an atomic gas cloud
• Nucleosynthesis from massive stars 50 years after B2FH
• Rotating Solar Models in Agreement with Helioseismic Results and Updated Neutrino Fluxes
• Theoretical predictions of surface light element abundances in protostellar and pre-Main Sequence phase
• The WHIQII Survey: Metallicities and Spectroscopic Properties of Luminous Compact Blue Galaxies
• Probing Na in giant exoplanets with ESPRESSO and 3D NLTE stellar spectra
• Analysis of stellar spectra with 3D and NLTE models
• Pulsating stars in NGC 6231 Frequency analysis and photometric mode identification near the main sequence
• Constraint on the inflow/outflow rates in star-forming galaxies at z~1.4 from molecular gas observations
• Insights on Metal Enrichment and Environmental Effect at $z\approx 5-7$ with JWST ASPIRE/EIGER and Chemical Evolution Model
• Andromeda IV: a new Local Volume very metal-poor galaxy
• Time-resolved multicolour photometry of bright B-type variable stars in Scorpius
• UV background fluctuations traced by metal ions at $z\approx 3$
• CO-CAVITY project: Molecular gas and star formation in void galaxies
• Observations of Far-Ultraviolet Diffuse Emission from the Small Magellanic Cloud
• A New Nearby Candidate Star Cluster in Ophiuchus at d = 170 pc
• Influence of the C/O ratio on titanium and vanadium oxides in protoplanetary disks
• Rendezvous in CAVITY: Kinematics and gas properties of an isolated dwarf-dwarf merging pair in a cosmic void region
• Solar Spectroscopy and (Pseudo-)Diagnostics of the Solar Chromosphere
• Solar cycle observations of the Neon abundance in the Sun-as-a-star
• The GAPS Programme at TNG -- XXIII. HD 164922 d: a close-in super-Earth discovered with HARPS-N in a system with a long-period Saturn mass companion
• Star formation and gas flow history of a dwarf irregular galaxy traced by gas-phase and stellar metallicities
• Ipopv2: Photoionization of Ni XIV -- a test case
• Initial mass function and galactic chemical evolution models
• Seismology of the Sun : Inference of Thermal, Dynamic and Magnetic Field Structures of the Interior
• A complex asteroseismic study of the hybrid B-type pulsator $\nu$ Eridani
• PMAS Optical Integral Field Spectroscopy of Luminous Infrared Galaxies. II.-- Spatially resolved stellar populations and excitation conditions
• The heart of NGC 5253 as seen with MUSE-NFM: nitrogen enrichment through stellar chemical feedback at parsec scales
• First detection of sign-reversed linear polarization from the forbidden [O I] 630.03 nm line
• Oxygen abundance in local disk and bulge: chemical evolution with a strictly universal IMF
• A long life of excess: The interacting transient SN 2017hcc
• The 21-cm signal from the Cosmic Dawn: metallicity dependence of high mass X-ray binaries
• The AGN fuelling/feedback cycle in nearby radio galaxies -- IV. Molecular gas conditions and jet-ISM interaction in NGC3100
• The solar carbon, nitrogen, and oxygen abundances from a 3D LTE analysis of molecular lines
• Does the solar oxygen abundance change over the solar cycle? An investigation into activity-induced variations of the O I infrared triplet