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The spectral energy distributions of active galactic nuclei

Published online by Cambridge University Press:  10 June 2020

M. J. I. Brown Open the ORCID record for M. J. I. Brown [Opens in a new window] ,
K. J. Duncan ,
H. Landt ,
M. Kirk ,
C. Ricci  and
N. Kamraj
M. J. I. Brown
Affiliation:
School of Physics & Astronomy, Monash University, Clayton, Victoria 3800, Australia email: [email protected]
K. J. Duncan
Affiliation:
Leiden Observatory, Leiden University, NL-2300 RA Leiden, Netherlands
H. Landt
Affiliation:
Department of Physics, Centre for Extragalactic Astronomy, Durham University, South Road, Durham DH1 3LE, UK
M. Kirk
Affiliation:
School of Physics & Astronomy, Monash University, Clayton, Victoria 3800, Australia email: [email protected]
C. Ricci
Affiliation:
Núcleo de Astronomía de la Facultad de Ingeniería, Universidad Diego Portales, Av. Ejército Libertador 441, Santiago, Chile Kavli Institute for Astronomy and Astrophysics, Peking University, Beijing 100871, China Chinese Academy of Sciences South America Center for Astronomy, Camino El Observatorio 1515, Las Condes, Santiago, Chile
N. Kamraj
Affiliation:
Cahill Center for Astronomy and Astrophysics, California Institute of Technology, Pasadena, CA 91125, USA
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We present ongoing work on the spectral energy distributions (SEDs) of active galactic nuclei (AGNs), derived from X-ray, ultraviolet, optical, infrared and radio photometry and spectroscopy. Our work is motivated by new wide-field imaging surveys that will identify vast numbers of AGNs, and by the need to benchmark AGN SED fitting codes. We have constructed 41 SEDs of individual AGNs and 80 additional SEDs that mimic Seyfert spectra. All of our SEDs span 0.09 to 30μm, while some extend into the X-ray and/or radio. We have tested the utility of the SEDs by using them to generate AGN photometric redshifts, and they outperform SEDs from the prior literature, including reduced redshift errors and flux density residuals.

Keywords

galaxies: active(galaxies:) quasars: generalgalaxies: Seyfert
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 15 , Symposium S341: Challenges in Panchromatic Modelling with Next Generation Facilities , November 2019 , pp. 21 - 25
Copyright
© International Astronomical Union 2020

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