A SINFONI Integral Field Spectroscopy Survey for Galaxy Counterparts to Damped Lyman-alpha Systems - II. Dynamical Properties of the Galaxies towards Q0302-223 and Q1009-0026

Abstract

Details of processes through which galaxies convert their gas into stars need to be studied in order to obtain a complete picture of galaxy formation. One way to tackle these phenomena is to relate the HI gas and the stars in galaxies. Here, we present dynamical properties of Damped and sub-Damped Lyman-alpha Systems identified in H-alpha emission with VLT/SINFONI at near infra-red wavelengths. While the DLA towards Q0302-223 is found to be dispersion-dominated, the sub-DLA towards Q1009-0026 shows clear signatures of rotation. We use a proxy to circular velocity to estimate the mass of the halo in which the sub-DLA resides and find M_halo=10^12.6 M_sun. We also derive dynamical masses of these objects, and find M_dyn=10^10.3 M_sun and 10^10.9 M_sun. For one of the two systems (towards Q0302-223), we are able to derive a stellar mass of M_*=10^9.5 M_sun from Spectral Energy Distribution fit. The gas fraction in this object is 1/3rd, comparable to similar objects at these redshifts. Our work illustrates that detailed studies of quasar absorbers can offer entirely new insights into our knowledge of the interaction between stars and the interstellar gas in galaxies.

arXiv comment6 pages, 2 figures. Accepted for publication in MNRAS

References in corpus (36)

• Stellar population synthesis at the resolution of 2003
• The Global Schmidt Law in Star Forming Galaxies
• How Do Galaxies Get Their Gas?
• [O III]/[N II] as an Abundance Indicator at High Redshift
• On the normalisation of the cosmic star formation history
• COSMOS Photometric Redshifts with 30-bands for 2-deg2
• The SINS survey: SINFONI Integral Field Spectroscopy of z ~ 2 Star-forming Galaxies
• Virial shocks in galactic haloes?
• The Galactic disk mass function: reconciliation of the HST and nearby determinations
• The Stellar, Gas and Dynamical Masses of Star-Forming Galaxies at z~2
• SINFONI Integral Field Spectroscopy of z~2 UV-selected Galaxies: Rotation Curves and Dynamical Evolution
• The rapid formation a large rotating disk galaxy three billion years after the Big Bang
• The HIPASS catalogue: Omega_HI and environmental effects on the HI mass function of galaxies
• The SDSS Damped Lya Survey: Data Release 3
• The Present and Future Mass of the Milky Way Halo
• SINFONI - Integral Field Spectroscopy at 50 milli-arcsecond resolution with the ESO VLT
• The Kiloparsec-Scale Kinematics of High-Redshift Star-Forming Galaxies
• The abundance and clustering of dark haloes in the standard Lambda CDM cosmogony
• The SINS survey: modeling the dynamics of z~2 galaxies and the high-z Tully-Fisher relation
• Evolution of the cosmological mass density of neutral gas from Sloan Digital Sky Survey II - Data Release 7
• The Gemini Deep Deep Survey: I. Introduction to the Survey, Catalogs and Composite Spectra
• Dynamical Properties of z~2 Star Forming Galaxies and a Universal Star Formation Relation
• The evolution of Omega(HI) and the epoch of formation of damped Lyman-alpha absorbers
• Halo Gas and Galaxy Disk Kinematics Derived from Observations and LCDM Simulations of MgII Absorption Selected Galaxies at Intermediate Redshift
• A Homogeneous Sample of Sub-DLAs III: Total Gas Mass Omega_(HI+HeII) at z>2
• Si and Mn Abundances in Damped Lya Systems with Low Dust Content
• Dynamics of Galactic Disks and Mergers at z~1.6: Spatially Resolved Spectroscopy with Keck Laser Guide Star Adaptive Optics
• The Nature of Damped Ly-alpha Absorbing Galaxies at z<=1--A Photometric Redshift Survey of Damped Ly-alpha Absorbers
• The Gas Consumption History to z ~ 4
• The SINFONI MgII Program for Line Emitters (SIMPLE): Discovering starbursts near QSO sight-lines
• The Role of Sub-damped Lyman-alpha Absorbers in the Cosmic Evolution of Metals
• Elemental Abundance Measurements in Low-redshift Damped Lyman Alpha Absorbers
• Turning Back the Clock: Inferring the History of the Eight O'clock Arc
• The nature of damped Lyman alpha and sub-damped Lyman alpha absorbers
• 2D Kinematics and Physical Properties of z~3 Star-Forming Galaxies
• The star formation history of damped Lyman alpha absorbers

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