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Zenodo, 2016

DOI: 10.5281/zenodo.60598

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Challenges In Finding Agns In The Low Luminosity Regime

Journal article published in 2016 by Shobita Satyapal, Nick Abel, Nathan Secrest ORCID, Amrit Singh, Sara Ellison
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

Low luminosity AGNs are an important component of the AGN population. They are often found in the lowest mass galaxies or galaxies that lack classical bulges, a demographic that places important constraints to models of supermassive black hole seed formation and merger-free models of AGN fueling. The detection of AGNs in this low luminosity regime is challenging both because star formation in the host galaxy can dominate the optical spectrum and gas and dust can obscure the central engine at both optical and X-ray wavelengths. Thus while mid-infrared color selection and X-ray observations at energies <10 keV are often powerful tools in uncovering optically unidentified AGNs at higher luminosities, this is not the case in the low luminosity regime. In this talk, I will review the effectiveness of uncovering AGNs in the low luminosity regime using multiwavength investigations, with a focus on infrared spectroscopic signatures.

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