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OLIVER_et_al_HERSCHEL_collaboration_Co-evolution_of_black_hole_growth_and_star_formation.pdf (10.12 MB)

Co-evolution of black hole growth and star formation from a cross-correlation analysis between quasars and the cosmic infrared background

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posted on 2023-06-08, 21:56 authored by Lingu Wang, Marco Viero, Nicholas P Ross, Viktoria Asboth, Matthieu Bethermin, Jamie Bock, Dave Clements, Alex Conley, Asantha Cooray, Duncan Farrah, Amir Hajian, Jiaxin Han, Guilane Lagache, Gaelen Marsden, Adam Myers, Peder Norberg, Seb OliverSeb Oliver, Mat Page, Myrto Symeonidis, Bernhard Schulz, Wenting Wang, Mike Zemcov
We present the first cross-correlation measurement between Sloan Digital Sky Survey type 1 quasars and the cosmic infrared background (CIB) measured by Herschel. The quasars cover the redshift range 0.15 < z < 3.5 where most of the CIB originates. We detect the sub-millimetre emission of the quasars, which dominates on small scales, and correlated emission from dusty star-forming galaxies (DSFGs) dominant on larger scales. The mean flux of the Data Release 7 (DR7) quasars (median redshift = 1.4) is 11.1, 7.1 and 3.6 mJy at 250, 350 and 500 µm, respectively, while the mean flux of the DR9 quasars ( = 2.5) is 5.7, 5.0 and 1.8 mJy at 250, 350 and 500 µm, respectively. Assuming a modified blackbody spectral energy distribution with a power law in the mid-infrared, we infer that the mean infrared luminosity of the DR7 and DR9 quasars is 1012.4 and 1012.8?L?, respectively. The correlated emission arises from DSFGs in the same halo as the quasar (the one-halo term) and DSFGs in separate haloes correlated with the quasar-hosting halo (the two-halo term). Using a simple halo model, we find that most quasars are hosted by central galaxies. The host halo mass scale of the DR7 central and satellite quasars is 1012.4 ± 0.9 and 1013.6 ± 0.4 M?, respectively. The host halo mass scale of the DR9 central and satellite quasars is 1012.3 ± 0.6 and 1012.8 ± 0.4 M?, respectively. Thus, the halo environment of the central quasars is similar to that of the most actively star-forming galaxies, which supports the view that dusty starburst and quasar activity are evolutionarily linked.

Funding

Astronomy rolling grant; G0278; STFC-SCIENCE AND TECHNOLOGY FACILITIES COUNCIL; ST/I000976/1

History

Publication status

  • Published

File Version

  • Published version

Journal

Monthly Notices of the Royal Astronomical Society

ISSN

0035-8711

Publisher

Oxford Univeristy Press

Issue

4

Volume

449

Page range

4476-4493

Department affiliated with

  • Physics and Astronomy Publications

Notes

This article has been accepted for publication in [Journal Title] ©: [2015] [the Authors] Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.

Full text available

  • Yes

Peer reviewed?

  • Yes

Legacy Posted Date

2015-07-30

First Open Access (FOA) Date

2015-07-30

First Compliant Deposit (FCD) Date

2015-07-30

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