Alexander Beckett alexander.beckett@durham.ac.uk
Academic Visitor
The relationship between gas and galaxies at z < 1 using the Q0107 quasar triplet
Beckett, Alexander; Morris, Simon L; Fumagalli, Michele; Bielby, Rich; Tejos, Nicolas; Schaye, Joop; Jannuzi, Buell; Cantalupo, Sebastiano
Authors
Professor Simon Morris simon.morris@durham.ac.uk
Professor
Professor Michele Fumagalli michele.fumagalli@durham.ac.uk
Academic Visitor
Rich Bielby
Nicolas Tejos
Joop Schaye
Buell Jannuzi
Sebastiano Cantalupo
Abstract
We study the distribution and dynamics of the circumgalactic and intergalactic medium using a dense galaxy survey covering the field around the Q0107 system, a unique z ≈ 1 projected quasar triplet. With full Ly α coverage along all three lines-of-sight from z = 0.18 to z = 0.73, more than 1200 galaxy spectra, and two MUSE fields, we examine the structure of the gas around galaxies on 100–1000 kpc scales. We search for H I absorption systems occurring at the same redshift (within 500 km s−1) in multiple sightlines, finding with >99.9 per cent significance that these systems are more frequent in the observed quasar spectra than in a randomly distributed population of absorbers. This is driven primarily by absorption with column densities N(H I) > 1014 cm−2, whilst multi-sightline absorbers with lower column densities are consistent with a random distribution. Star-forming galaxies are more likely to be associated with multi-sightline absorption than quiescent galaxies. HST imaging provides inclinations and position angles for a subset of these galaxies. We observe a bimodality in the position angle of detected galaxy-absorber pairs, again driven mostly by high-column-density absorbers, with absorption preferentially along the major and minor axes of galaxies out to impact parameters of several hundred kpc. We find some evidence supporting a disc/outflow dichotomy, as H I absorbers near the projected major axis of a galaxy show line-of-sight velocities that tend to align with the rotation of that galaxy, whilst minor-axis absorbers are twice as likely to exhibit O VI at the same redshift.
Citation
Beckett, A., Morris, S. L., Fumagalli, M., Bielby, R., Tejos, N., Schaye, J., …Cantalupo, S. (2021). The relationship between gas and galaxies at z < 1 using the Q0107 quasar triplet. Monthly Notices of the Royal Astronomical Society, 506(2), 2574-2602. https://doi.org/10.1093/mnras/stab1630
Journal Article Type | Article |
---|---|
Acceptance Date | May 26, 2021 |
Online Publication Date | Jun 10, 2021 |
Publication Date | 2021-09 |
Deposit Date | Aug 23, 2021 |
Publicly Available Date | Aug 23, 2021 |
Journal | Monthly Notices of the Royal Astronomical Society |
Print ISSN | 0035-8711 |
Electronic ISSN | 1365-2966 |
Publisher | Royal Astronomical Society |
Peer Reviewed | Peer Reviewed |
Volume | 506 |
Issue | 2 |
Pages | 2574-2602 |
DOI | https://doi.org/10.1093/mnras/stab1630 |
Files
Published Journal Article
(8.4 Mb)
PDF
Copyright Statement
This article has been accepted for publication in Monthly notices of the Royal Astronomical Society. ©: 2020 The Author(s). Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.
You might also like
Discovery of a Damped Lyα Galaxy at z ∼ 3 toward the Quasar SDSS J011852+040644
(2021)
Journal Article
Sub-damped Lyman α systems in the XQ-100 survey – II. Chemical evolution at 2.4 ≤ z ≤ 4.3
(2021)
Journal Article
The stochastic enrichment of Population II stars
(2020)
Journal Article
Downloadable Citations
About Durham Research Online (DRO)
Administrator e-mail: dro.admin@durham.ac.uk
This application uses the following open-source libraries:
SheetJS Community Edition
Apache License Version 2.0 (http://www.apache.org/licenses/)
PDF.js
Apache License Version 2.0 (http://www.apache.org/licenses/)
Font Awesome
SIL OFL 1.1 (http://scripts.sil.org/OFL)
MIT License (http://opensource.org/licenses/mit-license.html)
CC BY 3.0 ( http://creativecommons.org/licenses/by/3.0/)
Powered by Worktribe © 2024
Advanced Search