A new comprehensive set of elemental abundances in DLAs III. Star formation histories

Abstract

We obtained comprehensive sets of elemental abundances for eleven damped Ly-alpha systems (DLAs) at z_DLA=1.7-2.5. In Paper I of this series, we showed for three DLA galaxies that we can derive their star formation histories and ages from a detailed comparison of their intrinsic abundance patterns with chemical evolution models. We determine in this paper the star formation properties of six additional DLA galaxies. The derived results confirm that no single star formation history explains the diverse sets of abundance patterns in DLAs. We demonstrate that the various star formation histories reproducing the DLA abundance patterns are typical of local irregular, dwarf starburst and quiescent spiral galaxies. Independent of the star formation history, the DLAs have a common characteristic of being weak star forming galaxies; models with high star formation efficiencies are ruled out. All the derived DLA star formation rates per unit area are moderate or low, with values between -3.2 < log SFR < -1.1 M_sol yr^{-1} kpc^{-2}. The DLA abundance patterns require a large spread in ages ranging from 20 Myr up to 3 Gyr. The oldest DLA in our sample is observed at z_DLA=1.864 with an age estimated to more than 3 Gyr; it nicely indicates that galaxies were already forming at z_f>10. But, most of the DLAs show ages much younger than that of the Universe at the epoch of observation. Young galaxies thus seem to populate the high redshift Universe at z>2, suggesting relatively low redshifts of formation (z~3) for most high-redshift galaxies. The DLA star formation properties are compared with those of other high-redshift galaxies identified in deep imaging surveys with the aim of obtaining a global picture of high-redshift objects.

arXiv comment19 pages, 11 figures, Accepted for publication in A&A

References in corpus (60)

• Star Formation in Galaxies Along the Hubble Sequence
• The Chemical Evolution of the Galaxy: the two-infall model
• Lyman Break Galaxies at Redshift z~3: Survey Description and Full Data Set
• The Ultraviolet Spectrum of MS 1512-cB58: An Insight into Lyman Break Galaxies
• New Observations of the Interstellar Medium in the Lyman Break Galaxy MS 1512-cB58
• The SDSS Damped Lya Survey: Data Release 3
• Abundances at High Redshifts: the Chemical Enrichment History of Damped Lyman-alpha Galaxies
• Infared Observations of Nebular Emission Lines from Galaxies at z = 3
• The evolution of the Milky Way from its earliest phases : constraints on stellar nucleosynthesis
• Velocity-Metallicity Correlation for high-z DLA Galaxies: Evidence for a Mass-Metallicity Relation?
• The Luminosity, Stellar Mass, and Number Density Evolution of Field Galaxies of Known Morphology from z = 0.5 - 3
• Optical Selection of Galaxies at Redshifts 1<z<3
• The UCSD HIRES/KeckI Damped Lya Abundance Database: II. The Implications
• Chemical Abundances of the Damped Lya Systems at z>1.5
• The CORALS Survey I: New Estimates of the Number Density and Gas Content of Damped Lyman Alpha Systems Free from Dust Bias
• Reconciling the local galaxy population with damped Ly-alpha cross sections and metal abundances
• Spectroscopic Identification of a Proto-Cluster at z=2.300: Environmental Dependence of Galaxy Properties at High Redshift
• Dynamical and chemical evolution of gas-rich dwarf galaxies
• CII* Absorption in Damped Lyman Alpha Systems: (I) Star Formation Rates in a Two-Phase Medium
• On the Ly-alpha emission from gamma-ray burst host galaxies: evidence for low metallicities
• Molecular hydrogen, deuterium and metal abundances in the damped Ly-alpha system at z = 3.025 toward QSO 0347-3819
• The origin of primary nitrogen in galaxies
• Si and Mn Abundances in Damped Lya Systems with Low Dust Content
• The UCSD HIRES/KeckI Damped Lya Abundance Database: I. The Data
• Ionization Properties and Elemental Abundances in Damped Ly alpha Systems
• IMAPS Observations of Interstellar Neutral Argon and the Implications for Partially Ionized Gas
• Low-Redshift Damped Lyman Alpha Galaxies Toward the Quasars B2 0827+243, PKS 0952+179, PKS 1127-145, and PKS 1629+120
• Detection of Lyman-alpha emission from a DLA galaxy: Possible implications for a luminosity-metallicity relation at z = 2-3
• Dust and elemental abundances in Damped Ly alpha absorbers
• A Homogeneous Sample of Sub-DLAs II: Statistical, Kinematic and Chemical Properties
• CII* Absorption in Damped Lyman Alpha Systems: (II) A New Window on the Star Formation History of the Universe
• Ly-alpha and UV emission from high-redshift GRB hosts: To what extent do GRBs trace star formation?
• A new comprehensive set of elemental abundances in DLAs - II. Data analysis and chemical variation studies
• A comprehensive set of elemental abundances in damped Ly-alpha systems: revealing the nature of these high-redshift galaxies
• Stellar yields with rotation and their effect on chemical evolution models
• The elemental abundance pattern in a galaxy at z=2.626
• Chemical abundances of Damped Ly alpha systems: A new method for estimating dust depletion effects
• The Earliest Phases of Galaxy Evolution
• The dust obscuration bias in Damped Lyman alpha systems
• The Metal-Strong Damped Lyman-alpha Systems
• On the Evolution of Damped Lyman Alpha Systems to Galactic Disks
• Chemical evolution and nature of Damped Lyman-Alpha systems
• The Star Formation History of NGC 1705: a Post-Starburst Galaxy on the Verge of Activity
• Ionized Gas in Damped Lyman-alpha Systems and Its Effects on Elemental Abundance Studies
• Deep Ly-alpha imaging of two z=2.04 GRB host galaxy fields
• Multiple starbursts in Blue Compact Galaxies
• The UCSD HIRES/KeckI Damped Lya Abundance Database III. An Empirical Study of Photoionization in the Damped Lya System Toward GB1759+7539
• On the origin of Damped Lyman-alpha systems: a case for LSB galaxies?
• The Gemini Deep Deep Survey: II. Metals in Star-Forming Galaxies at Redshift 1.3<z<2
• Probing the IGM-Galaxy Connection Toward PKS0405-123 II : A Cross-Correlation Study of Lya Absorbers and Galaxies at z<0.5
• Cosmic metal production and the mean metallicity of the Universe
• On the Nature of the Heat Source for Damped Lya Systems
• A scaling law for interstellar depletions
• On ionization effects and abundance ratios in damped Lyman alpha systems
• Chemical evolution and depletion pattern in Damped Lyman-alpha (DLA) systems
• Cosmic Supernova Rates and the Hubble Sequence
• Emission-line spectroscopy of Damped Lyman Alpha Systems: The case of SBS 1543+593/HS 1543+5921
• The Chemical Evolution of the Universe I: High Column Density Absorbers
• Spectroscopy and Stellar Populations of Star-forming Galaxies at z~3 in the Hubble Deep Field - South
• Building Blocks in Hierarchical Clustering Scenarios and their Connection with Damped Ly$\alpha$ Systems

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