Characterizing circumgalactic gas around massive ellipticals at z~0.4 III. The galactic environment of a chemically-pristine Lyman limit absorber

Abstract

This paper presents a study of the galactic environment of a chemically-pristine (<0.6% solar metallicity) Lyman Limit system (LLS) discovered along the sightline toward QSO SDSSJ135726.27+043541.4 (zQSO=1.233) at projected distance d=126 physical kpc (pkpc) from a luminous red galaxy (LRG) at z=0.33. Combining deep Hubble Space Telescope images, MUSE integral field spectroscopic data, and wide-field redshift survey data has enabled an unprecedented, ultra-deep view of the environment around this LRG-LLS pair. A total of 12 galaxies, including the LRG, are found at d<~400 pkpc and line-of-sight velocity dv<600 km/s of the LLS, with intrinsic luminosity ranging from 0.001L* to 2L* and a corresponding stellar mass range of Mstar=10^{7-11} Msun. All 12 galaxies contribute to a total mass of Mstar=1.6e11 Msun with ~80% contained in the LRG. The line-of-sight velocity dispersion of these galaxies is found to be σ_group=230 km/s with the center of mass at d_group=118 pkpc and line-of-sight velocity offset of Δv_group=181 km/s from the LLS. Three of these are located at d<~100 pkpc from the LLS, and they are all faint with intrinsic luminosity <0.02 L* and gas phase metallicity of ~10% solar in their interstellar medium. The disparity in the chemical enrichment level between the LLS and the group members suggests that the LLS originates in infalling intergalactic medium and that parts of the intergalactic gas near old and massive galaxies can still remain chemically pristine through the not too distant past.

arXiv comment13 pages, 4 figures, published in MNRAS

References in corpus (55)

• The chemical composition of the Sun
• Galactic Stellar and Substellar Initial Mass Function
• Star Formation in the Milky Way and Nearby Galaxies
• The Average Star Formation Histories of Galaxies in Dark Matter Halos from z=0-8
• Mass and environment as drivers of galaxy evolution in SDSS and zCOSMOS and the origin of the Schechter function
• Spectroscopic Target Selection for the Sloan Digital Sky Survey: The Luminous Red Galaxy Sample
• An ultra-deep near-infrared spectrum of a compact quiescent galaxy at z=2.2
• The SAURON project - V. Integral-field emission-line kinematics of 48 elliptical and lenticular galaxies
• The O3N2 and N2 abundance indicators revisited: improved calibrations based on CALIFA and Te-based literature data
• The Large, Oxygen-Rich Halos of Star-Forming Galaxies Are A Major Reservoir of Galactic Metals
• The 2013 Release of Cloudy
• [OII] as a Star Formation Rate Indicator
• Direct Oxygen Abundances for Low Luminosity LVL Galaxies
• Hot Gas In and Around Elliptical Galaxies
• On the Origin of [OII] Emission in Red Sequence and Post-starburst Galaxies
• SDSS IV MaNGA - Metallicity and nitrogen abundance gradients in local galaxies
• Ubiquitous giant Ly $\alpha$ nebulae around the brightest quasars at $z\sim 3.5$ revealed with MUSE
• The Small Covering Factor of Cold Accretion Streams
• Characterizing Circumgalactic Gas around Massive Ellipticals at z~0.4 - II. Physical Properties and Elemental Abundances
• On the possible environmental effect in distributing heavy elements beyond individual gaseous halos
• The Fate of High-Velocity Clouds: Warm or Cold Cosmic Rain?
• The Ages and Metallicities of Early Type Galaxies in the Fornax Cluster
• A large population of metal-rich, compact, intergalactic C IV absorbers - Evidence for poor small-scale metal mixing
• Evolution of the Stellar-to-Dark Matter Relation: Separating Star-Forming and Passive Galaxies from z=1 to 0
• The Nature of Damped Ly-alpha Absorbing Galaxies at z<=1--A Photometric Redshift Survey of Damped Ly-alpha Absorbers
• Radial metal abundance profiles in the intra-cluster medium of cool-core galaxy clusters, groups, and ellipticals
• Probing the IGM-Galaxy Connection at z < 0.5 I: A Galaxy Survey in QSO Fields and a Galaxy-Absorber Cross-Correlation Study
• Empirical strong-line oxygen abundance calibrations from galaxies with electron temperature measurements
• Evidence for Cold Accretion: Primitive Gas Flowing onto a Galaxy at z~0.274
• The Large-scale Distribution of Cool Gas around Luminous Red Galaxies
• Halo-model signatures from 380,000 SDSS Luminous Red Galaxies with photometric redshifts
• A Cross-Correlation Analysis of Mg II Absorption Line Systems and Luminous Red Galaxies from the SDSS DR5
• Low-Redshift Lyman Limit Systems as Diagnostics of Cosmological Inflows and Outflows
• A comparison of observed and simulated absorption from HI, CIV, and SiIV around $z\approx 2$ star-forming galaxies suggests redshift-space distortions are due to inflows
• The Clustering of MgII Absorption Systems at z=0.5 and Detection of Cold Gas in Massive Halos
• Discovery of a Primitive Damped Lyman alpha Absorber Near an X-ray Bright Galaxy Group in the Virgo Cluster
• Characterizing Circumgalactic Gas around Massive Ellipticals at z ~ 0.4 I. Initial Results
• Galaxy Group at z=0.3 Associated with the Damped Lyman Alpha System Towards Quasar Q1127-145
• Probing the IGM-galaxy connection at z<0.5 II. New insights into the galaxy environments of OVI absorbers in PKS 0405-123
• Probing the intra-group medium of a z = 0.28 galaxy group
• The incidence of cool gas in ~ 1e13 Msun halos
• Ultra-strong MgII Absorbers as a Signature of Cool Intragroup Gas
• The dependence of oxygen and nitrogen abundances on stellar mass from the CALIFA survey
• The Galaxy Optical Luminosity Function from the AGN and Galaxy Evolution Survey (AGES)
• The COS CGM Compendium (CCC). I: Survey Design and Initial Results
• The MgII Cross-section of Luminous Red Galaxies
• The 2dF-SDSS LRG and QSO Survey: The Star Formation Histories of Luminous Red Galaxies
• Dark Galaxy Candidates at Redshift ~3.5 Detected with MUSE
• The Star Formation History of Luminous Red Galaxies Hosting MgII Absorbers
• Multi-object spectroscopy of the field surrounding PKS 2126-158: Discovery of a z=0.66 galaxy group
• A Lyman limit system associated with galactic winds
• The Circumgalactic Medium in Massive Halos
• HST Detection of Extended Neutral Hydrogen in a Massive Elliptical at z = 0.4
• HI 21cm emission from the sub-damped Lyman-alpha absorber at z=0.0063 towards PG1216+069
• Searching for the Lowest Metallicity Galaxies

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• Characterizing Circumgalactic Gas around Massive Ellipticals at z~0.4 - II. Physical Properties and Elemental Abundances
• Project AMIGA: The Circumgalactic Medium of Andromeda
• The Cosmic Ultraviolet Baryon Survey (CUBS) I. Overview and the diverse environments of Lyman limit systems at z<1
• The COS CGM Compendium. III: Metallicity and Physical Properties of the Cool Circumgalactic Medium at z<1
• Metal enrichment in the circumgalactic medium and Lyα haloes around quasars at z $\sim$3
• The Physical Origins of the Identified and Still Missing Components of the Warm-Hot Intergalactic Medium: Insights from Deep Surveys in the Field of Blazar 1ES1553+113
• The Red Dead Redemption Survey of Circumgalactic Gas About Massive Galaxies. I. Mass and Metallicity of the Cool Phase
• The Cosmic Ultraviolet Baryon Survey (CUBS) IV: The Complex Multiphase Circumgalactic Medium as Revealed by Partial Lyman Limit Systems
• Cool circumgalactic gas of passive galaxies from cosmological inflow
• Recovery and analysis of rest-frame UV emission lines in 2052 galaxies observed with MUSE at $1.5<z<6.4$
• A Deep Learning Approach to Quasar Continuum Prediction
• The Bimodal Absorption System Imaging Campaign (BASIC) I. A Dual Population of Low-metallicity Absorbers at z $<1$
• Evidence for galaxy quenching in the green valley caused by a lack of a circumgalactic medium
• Inflow of low-metallicity cool gas in the halo of the Andromeda galaxy
• Shock fronts in the long GRB031203 host galaxy
• Modelling gas around galaxy pairs and groups using the Q0107 quasar triplet
• Metal-strong Inflows at the Outer-galactic-scale of a Quasar