On the O/H, Mg/H, Si/H and Fe/H Gas and Dust Abundance Ratios in Galactic and Extragalactic H II Regions

Abstract

We derive the Mg/H ratio in the Orion nebula and in 30 Doradus. We also derive the O/H and the Fe/O ratios in the extremely metal poor galaxy SBS 0335-052. We estimate the dust depletions of Mg, Si, and Fe in Galactic and extragalactic H II regions. Based on these depletions we estimate the fraction of O atoms embedded in dust as a function of the O/H ratio. We find an increasing depletion of O with increasing O/H. The O depletion increases from about 0.08 dex, for the metal poorest H II regions known, to about 0.12 dex, for metal rich H II regions. This depletion has to be considered when comparing nebular with stellar abundances.

22 pages, 6 figures, submitted to The Astrophysical Journal. Rewritten for clarity (following the recomendations by the ApJ referee)

References in corpus (9)

• The chemical composition of the Sun
• A Unified Representation of Gas-Phase Element Depletions in the Interstellar Medium
• A cosmic abundance standard: chemical homogeneity of the solar neighbourhood and the ISM dust-phase composition
• Keck HIRES Spectroscopy of Extragalactic HII Regions: C and O Abundances from Recombination Lines
• The localized chemical pollution in NGC 5253 revisited: Results from deep echelle spectrophotometry
• Properties of the ionized gas in HH202. II: Results from echelle spectrophotometry with UVES
• Faint emission lines in the Galactic H II regions M16, M20 and NGC 3603
• SBS 0335-052E+W: deep VLT/FORS+UVES spectroscopy of the pair of the lowest-metallicity blue compact dwarf galaxies
• The chemical composition of the Orion star forming region: I. Homogeneity of O and Si abundances in B-type stars

Cited by in corpus (73)

• Understanding Galaxy Evolution through Emission Lines
• New calibrations for abundance determinations in HII regions
• HII Region Metallicity Distribution in the Milky Way Disk
• Eliminating Error in the Chemical Abundance Scale for Extragalactic HII Regions
• Dust and Gas in the Magellanic Clouds from the HERITAGE Herschel Key Project. I. Dust Properties and Insights into the Origin of the Submm Excess Emission
• Carbon and Oxygen Abundances in Low Metallicity Dwarf Galaxies
• A Census of Oxygen in Star-Forming Galaxies: An Empirical Model Linking Metallicities, Star Formation Rates and Outflows
• The Chemical Evolution of Carbon, Nitrogen, and Oxygen in Metal-Poor Dwarf Galaxies
• CHAOS IV: Gas-Phase Abundance Trends From The First Four CHAOS Galaxies
• Nebular spectroscopy: A guide on H II regions and planetary nebulae
• Chemical abundances in M31 from HII regions
• Carbon and oxygen abundances from recombination lines in low-metallicity star-forming galaxies. Implications for chemical evolution
• FIREbox: Simulating galaxies at high dynamic range in a cosmological volume
• Young stars and ionized nebulae in M83: comparing chemical abundances at high metallicity
• Improving Helium Abundance Determinations with Leo P as a Case Study
• Carbon and oxygen in HII regions of the Magellanic Clouds: abundance discrepancy and chemical evolution
• The Galactic radial abundance gradients of C, N, O, Ne, S, Cl and Ar from deep spectra of H II regions
• Old-Aged Stellar Population Distance Indicators
• Detailed abundance analysis from integrated high-dispersion spectroscopy: Globular clusters in the Fornax Dwarf Spheroidal
• Coevolution of metallicity and star formation in galaxies to z=3.7: I. A fundamental plane
• Carbon and oxygen abundance gradients in NGC300 and M33 from optical recombination lines
• NGC 2579 and the carbon and oxygen abundance gradients beyond the solar circle
• Oxygen enrichment in carbon-rich planetary nebulae
• CHAOS VI: Direct Abundances in NGC 2403
• Chemical enrichment and physical conditions in I Zw 18
• Gradients of chemical abundances in the Milky Way from HII regions: distances derived from Gaia EDR3 parallaxes and temperature inhomogeneities
• The Close Binary Properties of Massive Stars in the Milky Way and Low-Metallicity Magellanic Clouds
• Temperature inhomogeneities cause the abundance discrepancy in H II regions
• Ionization correction factors and dust depletion patterns in giant HII regions
• In-spiraling Clumps in Blue Compact Dwarf Galaxies
• Revisiting the abundance gradient in the maser host galaxy NGC 4258
• The First Maps of ${\kappa }_d$ -- the Dust Mass Absorption Coefficient -- in Nearby Galaxies, with DustPedia
• An Empirical Determination of the Dust Mass Absorption Coefficient, ${\kappa }_d$, Using the Herschel Reference Survey
• Chemical abundances of Seyfert 2 AGNs $-$II. N2 metallicity calibration based on SDSS
• A multi-wavelength investigation of RCW175: an HII region harboring spinning dust emission
• Stellar Metallicity of the Extended Disk and Distance of the Spiral Galaxy NGC 3621
• Metals and dust content across the galaxies M101 and NGC 628
• Towards A Removal of Temperature Dependencies from Abundance Determinations
• X-rays as dominant excitation mechanism of [Fe ii] and H2 emission lines in active galaxies
• Galaxy gas flows inferred from a detailed, spatially resolved metal budget
• Environmental Effects on the Metal Enrichment of Low Mass Galaxies in Nearby Clusters
• Analysis of two SMC HII Regions Considering Thermal Inhomogeneities: Implications for the Determinations of Extragalactic Chemical Abundances
• Optical and mid-infrared neon abundance determinations in star-forming regions
• The radial abundance gradient of chlorine in the Milky Way
• About Metallicity Variations in the Local Galactic Interstellar Medium
• Direct Constraints on the Extremely Metal-Poor Massive Stars Underlying Nebular C IV Emission from Ultra-Deep HST/COS Ultraviolet Spectroscopy
• Resolving the Dust-to-Metals Ratio and CO-to-H${}_2$ Conversion Factor in the Nearby Universe
• Dynamics and Morphology of the Milky Way Spiral Arms from the Metallicity Distribution and Radial Mixing
• The homogeneity of chemical abundances in H II regions of the Magellanic Clouds
• The metallicity and distance of NGC 2403 from blue supergiants
• Densities, temperatures, pressures, and abundances derived from OII recombination lines in HII regions and their implications
• The Mg II 2797, 2803 emission in low-metallicity star-forming galaxies from the SDSS
• On the use of the index N2 to derive the metallicity in metal-poor galaxie
• The last 5 Gyr of Galactic chemical evolution based on H II region abundances derived from a temperature independent method
• Carbon Abundances in Starburst Galaxies of the Local Universe
• Optical and JWST Mid-IR Emission Line Diagnostics for Simultaneous IMBH and Stellar Excitation in z~0 Dwarf Galaxies
• Gas-phase Fe/O and Fe/N abundances in Star-Forming Regions. Relations between nucleosynthesis, metallicity and dust
• Benchmarking Dust Emission Models in M101
• MgII 2797, 2803 emission in a large sample of low-metallicity star-forming galaxies from SDSS DR14
• SPICA and the Chemical Evolution of Galaxies: The Rise of Metals and Dust
• Oxygen yields as a constraint on feedback processes in galaxies
• Metallicities of Young Massive Clusters in NGC 5236 (M83)
• The impact of carbon and oxygen abundances on the metal-poor initial mass function
• Outside-in stellar formation in the spiral galaxy M33?
• Kpc-scale properties of dust temperature in terms of dust mass and star formation activity
• Disentangling the co-evolution of galaxies and supermassive black holes with PRIMA
• Chemical abundances of Young Massive Clusters in NGC 1313
• On the Contribution of Very Massive Stars to the Sulfur Abundance in Star-Forming Galaxies: the Role of PISN
• The Relation between Nuclear Activity and Stellar Mass in Galaxies
• Extended Ionized Fe Objects in the UWIFE Survey
• The ADF and the t${}^2$ formalism in H II regions based on the upper mass limit of the IMF for the MW
• Chemical abundances in Seyfert galaxies -- VII. Direct abundance determination of neon based on optical and infrared emission lines
• A comparative study of O, Ne, Cl, and Ar in Hii regions and PNe of the Galactic disk: Temporal evolution of radial gradients?