A.A. Khostovan
Evolution of the H β + [O III] and [O II] luminosity functions and the [O II] star formation history of the Universe up to z ∼ 5 from HiZELS
Khostovan, A.A.; Sobral, D.; Mobasher, B.; Best, P.N.; Smail, I.; Stott, J.P.; Hemmati, S.; Nayyeri, H.
Authors
D. Sobral
B. Mobasher
P.N. Best
Professor Ian Smail ian.smail@durham.ac.uk
Emeritus Professor
J.P. Stott
S. Hemmati
H. Nayyeri
Abstract
We investigate the evolution of the H β + [O iii] and [O ii] luminosity functions from z ∼ 0.8 to ∼5 in four redshift slices per emission line using data from the High-z Emission Line Survey (HiZELS). This is the first time that the H β + [O iii] and [O ii] luminosity functions have been studied at these redshifts in a self-consistent analysis. This is also the largest sample of [O ii] and H β + [O iii] emitters (3475 and 3298 emitters, respectively) in this redshift range, with large comoving volumes ∼1 × 106 Mpc−3 in two independent volumes (COSMOS and UDS), greatly reducing the effects of cosmic variance. The emitters were selected by a combination of photometric redshift and colour–colour selections, as well as spectroscopic follow-up, including recent spectroscopic observations using DEIMOS and MOSFIRE on the Keck Telescopes and FMOS on Subaru. We find a strong increase in L⋆ and a decrease in ϕ⋆ for both H β + [O iii] and [O ii] emitters. We derive the [O ii] star formation history of the Universe since z ∼ 5 and find that the cosmic star formation rate density (SFRD) rises from z ∼ 5 to ∼3 and then drops towards z ∼ 0. We also find that our star formation history is able to reproduce the evolution of the stellar mass density up to z ∼ 5 based only on a single tracer of star formation. When comparing the H β + [O iii] SFRDs to the [O ii] and H α SFRD measurements in the literature, we find that there is a remarkable agreement, suggesting that the H β + [O iii] sample is dominated by star-forming galaxies at high-z rather than AGNs.
Citation
Khostovan, A., Sobral, D., Mobasher, B., Best, P., Smail, I., Stott, J., …Nayyeri, H. (2015). Evolution of the H β + [O III] and [O II] luminosity functions and the [O II] star formation history of the Universe up to z ∼ 5 from HiZELS. Monthly Notices of the Royal Astronomical Society, 452(4), 3948-3968. https://doi.org/10.1093/mnras/stv1474
Journal Article Type | Article |
---|---|
Acceptance Date | Jul 1, 2015 |
Publication Date | Oct 1, 2015 |
Deposit Date | Feb 16, 2016 |
Publicly Available Date | Feb 19, 2016 |
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 | 452 |
Issue | 4 |
Pages | 3948-3968 |
DOI | https://doi.org/10.1093/mnras/stv1474 |
Keywords | Galaxies: evolution, Galaxies: high-redshift, Galaxies: luminosity function, mass function, Cosmology: observations |
Related Public URLs | http://adsabs.harvard.edu/abs/2015MNRAS.452.3948K |
Files
Published Journal Article
(4.8 Mb)
PDF
Copyright Statement
This article has been accepted for publication in Monthly notices of the Royal Astronomical Society ©: 2015 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.
You might also like
VLA Legacy Survey of Molecular Gas in Massive Star-forming Galaxies at High Redshift
(2023)
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