Grimmett, L., Mullaney, J. orcid.org/0000-0002-3126-6712, Jin, S. et al. (3 more authors) (2019) Revealing the differences in the SMBH accretion rate distributions of starburst and non-starburst galaxies. Monthly Notices of the Royal Astronomical Society, 487 (3). pp. 4071-4082. ISSN 0035-8711
Abstract
We infer and compare the specific X-ray luminosity distributions for a sample of massive (i.e. log10(M*/M⊙) > 10.5) galaxies split according to their far-infrared-derived star-forming properties (i.e. starburst and non-starburst) and redshift. We model each distribution as a power law with an upper and lower turnover, and adopt a maximum likelihood method to include information from non-detections in the form of upper limits. When we use our inferred distributions to calculate the ratios of high to low sLX active galactic nuclei (AGNs; corresponding to above and below 0.1λEdd, respectively), we find that starbursts have significantly higher proportions of high sLX AGNs compared to their non-starburst counterparts. These findings help explain the increase in average X-ray luminosity in bins of increasing star formation rates reported by previous studies.
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Copyright, Publisher and Additional Information: | © 2019 The Authors. This is an author-produced version of a paper subsequently published in Monthly Notices of the Royal Astronomical Society. Uploaded in accordance with the publisher's self-archiving policy. | ||||
Keywords: | galaxies: statistics; galaxies: active; galaxies: evolution; X-rays: galaxies | ||||
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Institution: | The University of Sheffield | ||||
Academic Units: | The University of Sheffield > Faculty of Science (Sheffield) > Department of Physics and Astronomy (Sheffield) The University of Sheffield > Faculty of Science (Sheffield) > School of Mathematics and Statistics (Sheffield) |
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Depositing User: | Symplectic Sheffield | ||||
Date Deposited: | 07 May 2019 10:47 | ||||
Last Modified: | 09 Oct 2019 14:41 | ||||
Status: | Published | ||||
Publisher: | Oxford University Press | ||||
Refereed: | Yes | ||||
Identification Number: | https://doi.org/10.1093/mnras/stz1558 | ||||
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