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The Spectral Energy Distributions of Active Galactic Nuclei

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arxiv 1902.07595 v1 pith:HCNVE5WH submitted 2019-02-19 astro-ph.GA

The Spectral Energy Distributions of Active Galactic Nuclei

classification astro-ph.GA
keywords sedsagnsactivedistributionsenergygalacticnucleiradio
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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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 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.

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