Theoretical study of an LAE-C IV absorption pair at z = 5.7

@article{Garcia2017TheoreticalSO,
  title={Theoretical study of an LAE-C IV absorption pair at z = 5.7},
  author={Luz 'Angela Garc'ia and Edoardo Tescari and Emma V. Ryan-Weber and J. S. B. Wyithe Centre for Astrophysics and Supercomputing and Swinburne University of Technology and Arc Centre of Excellence for All-Sky Astrophysics in 3 Physics and The University of Melbourne},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2017},
  volume={469}
}
We present a theoretical model to predict the properties of an observed $z =$ 5.72 Lyman $\alpha$ emitter galaxy - CIV absorption pair separated by 1384 comoving kpc/h. We use the separation of the pair and an outflow velocity/time travelling argument to demonstrate that the observed galaxy cannot be the source of metals for the CIV absorber. We find a plausible explanation for the metal enrichment in the context of our simulations: a dwarf galaxy with $M_{\star} =$ 1.87 $\times$ 10$^{9} M_… Expand
6 Citations

Figures and Tables from this paper

Simulated metal and H i absorption lines at the conclusion of reionization
We present a theoretical study of intergalactic metal absorption lines imprinted in the spectra of distant quasars during and after the Epoch of Reionization (EoR). We use high resolutionExpand
The faint host galaxies of C IV absorbers at z > 5
We explore the expected galaxy environments of CIV absorbers at z>5 using the Technicolor Dawn simulations. These simulations reproduce the observed history of reionization, the z~6 galaxy stellarExpand
CAN UVB VARIATIONS RECONCILE SIMULATED QUASAR ABSORPTION LINES AT HIGH REDSHIFT?
In this work, we present new calculations of the observables associated with synthetic metal and HI absorption lines in the spectra of high redshift quasars, inspired by questions and limitationsExpand
Evolution of neutral oxygen during the epoch of reionization and its use in estimating the neutral hydrogen fraction
We use synthetic sightlines drawn through snapshots of the Technicolour Dawn simulations to explore how the statistics of neutral oxygen (${\mathrm{O}\,{\small I}}$) absorbers respond to hydrogenExpand
The role of galaxies and AGN in reionizing the IGM - I. Keck spectroscopy of 5 < z < 7 galaxies in the QSO field J1148+5251
We introduce a new method for determining the influence of galaxies and active galactic nuclei (AGN) on the intergalactic medium (IGM) at high redshift and illustrate its potential via a firstExpand
Probing the nature of dark matter through the metal enrichment of the intergalactic medium
We focus on exploring the metal enrichment of the intergalactic medium (IGM) in cold and warm (1.5 and 3 keV) dark matter (DM) cosmologies, and the constraints this yields on the DM particle mass,Expand

References

SHOWING 1-10 OF 31 REFERENCES
Large-scale environment of z ∼ 5.7 C iv absorption systems –II. Spectroscopy of Lyman α emitters
The flow of baryons to and from a galaxy, which is fundamental for galaxy formation and evolution, can be studied with galaxy-metal absorption system pairs. Our search for galaxies around CIVExpand
CONSTRAINTS ON THE UNIVERSAL C IV MASS DENSITY AT z ∼ 6 FROM EARLY INFRARED SPECTRA OBTAINED WITH THE MAGELLAN FIRE SPECTROGRAPH*
We present a new determination of the intergalactic C IV mass density at 4.3 5.8 obtained with the newly commissioned Folded-Port Infrared Echellette (FIRE) spectrograph on the Magellan BaadeExpand
Metals in the IGM approaching the re-ionization epoch: results from X-shooter at the VLT
We present the results of observations taken with the X-shooter spectrograph devoted to the study of quasars at z ∼ 6. This paper focuses on the properties of metals at high redshift traced, inExpand
The Evolution of the Galaxy Stellar Mass Function at z= 4-8: A Steepening Low-mass-end Slope with Increasing Redshift
We present galaxy stellar mass functions (GSMFs) at $z=$ 4-8 from a rest-frame ultraviolet (UV) selected sample of $\sim$4500 galaxies, found via photometric redshifts over an area of $\sim$280Expand
A downturn in intergalactic C iv as redshift 6 is approached
We present the results of the largest survey to date for inter galactic metals at redshifts z > 5, using near-IR spectra of nine QSOs with emission redshifts zem > 5.7. We detect three strong C IVExpand
The Low-z Intergalactic Medium. III. H I and Metal Absorbers at z < 0.4
We conduct an ultraviolet (HST and FUSE) spectroscopic survey of H I (Lyman lines) and seven metal ions (O VI, N V, C IV, C III, Si IV, Si III, Fe III) in the low-redshift IGM at z < 0.4. We analyzedExpand
Metal-line absorption around z ≈ 2.4 star-forming galaxies in the Keck Baryonic Structure Survey
We study metal absorption around 854 z ≈ 2.4 star-forming galaxies taken from the Keck Baryonic Structure Survey. The galaxies examined in this work lie in the fields of 15 hyperluminous backgroundExpand
THE CIRCUMGALACTIC MEDIUM OF MASSIVE GALAXIES AT z ∼ 3: A TEST FOR STELLAR FEEDBACK, GALACTIC OUTFLOWS, AND COLD STREAMS
We present new results on the kinematics, thermal and ionization state, and spatial distribution of metal-enriched gas in the circumgalactic medium (CGM) of massive galaxies at redshift ~3, using theExpand
STAR FORMATION FEEDBACK AND METAL-ENRICHMENT HISTORY OF THE INTERGALACTIC MEDIUM
Using the state-of-the-art cosmological hydrodynamic simulations of the standard cold dark matter model with star formation feedback strength normalized to match the observed star formation historyExpand
Testing the effect of galactic feedback on the IGM at z ∼ 6 with metal-line absorbers
We present models of low- and high-ionization metal-line absorbers (O i, C ii, C iv and Mg ii) during the end of the reionization epoch, at z ∼ 6. Using four cosmological hydrodynamical simulationsExpand
...
1
2
3
4
...