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Tracing the cosmic growth of supermassive black holes to z~3 with Herschel

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posted on 2023-06-08, 20:56 authored by I Delvecchio, C Gruppioni, F Pozzi, S Berta, G Zamorani, A Cimatti, D Lutz, D Scott, C Vignali, G Cresci, A Feltre, A Cooray, M Vaccari, J Fritz, E Le Floc'h, B Magnelli, P Popesso, Seb OliverSeb Oliver, J Bock, M Carollo, T Contini, O Le Févre, S Lilly, V Mainieri, A Renzini, M Scodeggio
We study a sample of Herschel selected galaxies within the Great Observatories Origins Deep Survey-South and the Cosmic Evolution Survey fields in the framework of the Photodetector Array Camera and Spectrometer (PACS) Evolutionary Probe project. Starting from the rich multiwavelength photometric data sets available in both fields, we perform a broad-band spectral energy distribution decomposition to disentangle the possible active galactic nucleus (AGN) contribution from that related to the host galaxy. We find that 37 per cent of the Herschel-selected sample shows signatures of nuclear activity at the 99 per cent confidence level. The probability of revealing AGN activity increases for bright (L 1-1000 > 10 11 L ? ) star-forming galaxies at z > 0.3, becoming about 80 per cent for the brightest (L 1-1000 > 10 12 L ? ) Infrared (IR) galaxies at z=1. Finally, we reconstruct the AGN bolometric luminosity function and the supermassive black hole growth rate across cosmic time up to z ~ 3 from a far-IR perspective. This work shows general agreement with most of the panchromatic estimates from the literature, with the global black hole growth peaking at z ~ 2 and reproducing the observed local black hole mass density with consistent values of the radiative efficiency Erad (~0.07).

History

Publication status

  • Published

File Version

  • Published version

Journal

Monthly Notices of the Royal Astronomical Society

ISSN

0035-8711

Publisher

Oxford University Press

Issue

3

Volume

439

Page range

2736-2754

Department affiliated with

  • Physics and Astronomy Publications

Full text available

  • Yes

Peer reviewed?

  • Yes

Legacy Posted Date

2015-06-01

First Open Access (FOA) Date

2015-06-01

First Compliant Deposit (FCD) Date

2015-05-29

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