The Spectral Energy Distributions of Active Galactic Nuclei

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...

Full description

Saved in:
Bibliographic Details
Published in:arXiv.org 2019-02
Main Authors: Brown, M J I, Duncan, K J, Landt, H, Kirk, M, Ricci, C, Kamraj, N
Format: Article
Language:English
Subjects:
Active galactic nuclei
Flux density
Infrared photometry
Photometry
Red shift
Seyfert galaxies
Spectra
Spectrum analysis
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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 30 microns, 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.
ISSN:2331-8422
DOI:10.48550/arxiv.1902.07595