C.M. Harrison
ALMA resolves extended star formation in high-z AGN host galaxies
Harrison, C.M.; Simpson, J.M.; Stanley, F.; Alexander, D.M.; Daddi, E.; Mullaney, J.R.; Pannella, M.; Rosario, D.J.; Smail, I.
Authors
J.M. Simpson
F. Stanley
Professor David Alexander d.m.alexander@durham.ac.uk
Professor
E. Daddi
J.R. Mullaney
M. Pannella
D.J. Rosario
Professor Ian Smail ian.smail@durham.ac.uk
Emeritus Professor
Abstract
We present high-resolution (0.3 arcsec) Atacama Large Millimeter Array (ALMA) 870 μm imaging of five z ≈ 1.5–4.5 X-ray detected AGN (with luminosities of L2–8keV > 1042 erg s−1). These data provide a ≳20 times improvement in spatial resolution over single-dish rest-frame far-infrared (FIR) measurements. The sub-millimetre emission is extended on scales of FWHM ≈ 0.2 arcsec–0.5 arcsec, corresponding to physical sizes of 1–3 kpc (median value of 1.8 kpc). These sizes are comparable to the majority of z=1–5 sub-millimetre galaxies (SMGs) with equivalent ALMA measurements. In combination with spectral energy distribution analyses, we attribute this rest-frame FIR emission to dust heated by star formation. The implied star-formation rate surface densities are ≈20–200 M⊙ yr−1 kpc−2, which are consistent with SMGs of comparable FIR luminosities (i.e. LIR ≈ [1–5] × 1012 L⊙). Although limited by a small sample of AGN, which all have high-FIR luminosities, our study suggests that the kpc-scale spatial distribution and surface density of star formation in high-redshift star-forming galaxies is the same irrespective of the presence of X-ray detected AGN.
Citation
Harrison, C., Simpson, J., Stanley, F., Alexander, D., Daddi, E., Mullaney, J., …Smail, I. (2016). ALMA resolves extended star formation in high-z AGN host galaxies. Monthly Notices of the Royal Astronomical Society: Letters, 457(1), L122-L126. https://doi.org/10.1093/mnrasl/slw001
Journal Article Type | Article |
---|---|
Acceptance Date | Jan 4, 2016 |
Online Publication Date | Feb 1, 2016 |
Publication Date | Mar 21, 2016 |
Deposit Date | Feb 16, 2016 |
Publicly Available Date | Mar 28, 2024 |
Journal | Monthly Notices of the Royal Astronomical Society: Letters |
Electronic ISSN | 1745-3933 |
Publisher | Oxford University Press |
Peer Reviewed | Peer Reviewed |
Volume | 457 |
Issue | 1 |
Pages | L122-L126 |
DOI | https://doi.org/10.1093/mnrasl/slw001 |
Keywords | Galaxies: active, Galaxies: evolution, Quasars: general, Galaxies: star formation, Submillimetre: galaxies. |
Related Public URLs | http://adsabs.harvard.edu/abs/2016MNRAS.457L.122H |
Files
Published Journal Article
(1.5 Mb)
PDF
Copyright Statement
This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society: Letters ©: 2016 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.
You might also like
A new discovery space opened by eROSITA: Ionised AGN outflows from X-ray selected samples
(2023)
Journal Article
DESI z ≳ 5 Quasar Survey. I. A First Sample of 400 New Quasars at z ∼ 4.7–6.6
(2023)
Journal Article
The Quasar Feedback Survey: characterizing CO excitation in quasar host galaxies
(2023)
Journal Article
Obscuration beyond the nucleus: infrared quasars can be buried in extreme compact starbursts
(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